* RE: mmap of large amount returns invalid pointer
@ 2002-03-12 14:53 Heribert Dahms
2002-03-12 18:48 ` Stephen Weeks
2002-03-13 2:23 ` Corinna Vinschen
0 siblings, 2 replies; 14+ messages in thread
From: Heribert Dahms @ 2002-03-12 14:53 UTC (permalink / raw)
To: 'Stephen Weeks', cygwin
Hi Stephen and Corinna,
looks like you have overlooked that mmap doesn't return NULL
despite win32 error in strace (see below):
c:\>net helpmsg 1455
The paging file is too small for this operation to complete.
Second, (may mean nothing) why is h:188 first and h:190 second time?
Bye, Heribert (heribert_dahms@icon-scm.com)
> -----Original Message-----
> From: Stephen Weeks [SMTP:sweeks@acm.org]
> Sent: Tuesday, March 12, 2002 19:08
> To: cygwin@cygwin.com
> Subject: Re: mmap of large amount returns invalid pointer
>
[Heribert] [snip]
> 1668 719099 [main] mmap 159 mmap: addr 0, len 100000000, prot 3, flags
> 22, fd -1, off 0
> 5487 724586 [main] mmap 159 fhandler_disk_file::mmap: 2A230000 =
> MapViewOfFileEx (h:188, access:1, 0, off:0, len:100007936, addr:0)
> 26042 750628 [main] mmap 159 mmap: 2A230000 = mmap() succeeded
>
[Heribert] [snip]
> 1302 2076991 [main] mmap 159 mmap: addr 0, len 130000000, prot 3, flags
> 22, fd -1, off 0
> 2949 2079940 [main] mmap 159 fhandler_disk_file::mmap: 2A230000 =
> MapViewOfFileEx (h:190, access:1, 0, off:0, len:130023424, addr:0)
> 7425 2087365 [main] mmap 159 mmap_record::map_map: -1 = map_map (): Win32
> error 1455
> 1830 2089195 [main] mmap 159 mmap: 2A230000 = mmap() succeeded
>
[Heribert] [snip]
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^ permalink raw reply [flat|nested] 14+ messages in thread
* RE: mmap of large amount returns invalid pointer
2002-03-12 14:53 mmap of large amount returns invalid pointer Heribert Dahms
@ 2002-03-12 18:48 ` Stephen Weeks
2002-03-12 18:48 ` Christopher Faylor
2002-03-13 2:23 ` Corinna Vinschen
1 sibling, 1 reply; 14+ messages in thread
From: Stephen Weeks @ 2002-03-12 18:48 UTC (permalink / raw)
To: cygwin; +Cc: Heribert Dahms
> looks like you have overlooked that mmap doesn't return NULL
> despite win32 error in strace (see below):
>
> c:\>net helpmsg 1455
>
> The paging file is too small for this operation to complete.
Thanks for pointing that out. I agree that it looks like the Cygwin
dll is failing to check for the Win32 error, which should have caused
mmap to return -1.
But even if that is fixed, I don't understand why Cygwin/mmap is
unable to obtain the memory. My earlier message showed that at the
start of the program the information returned by GlobalMemoryStatus
shows that there is easily >300Mb available.
TotalPhys: 209113088
AvailPhys: 166580224
TotalPageFile: 309587968
AvailPageFile: 275365888
TotalVirtual: 2147352576
AvailVirtual: 1589841920
I tried a modified version of the program that uses VirtualAlloc/Free
instead of mmap/munmap and it is able to allocate, zero, and free
300Mb.
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-12 18:48 ` Stephen Weeks
@ 2002-03-12 18:48 ` Christopher Faylor
0 siblings, 0 replies; 14+ messages in thread
From: Christopher Faylor @ 2002-03-12 18:48 UTC (permalink / raw)
To: cygwin
On Tue, Mar 12, 2002 at 06:21:15PM -0800, Stephen Weeks wrote:
>
>> looks like you have overlooked that mmap doesn't return NULL
>> despite win32 error in strace (see below):
>>
>> c:\>net helpmsg 1455
>>
>> The paging file is too small for this operation to complete.
>
>Thanks for pointing that out. I agree that it looks like the Cygwin
>dll is failing to check for the Win32 error, which should have caused
>mmap to return -1.
>
>But even if that is fixed, I don't understand why Cygwin/mmap is
>unable to obtain the memory. My earlier message showed that at the
>start of the program the information returned by GlobalMemoryStatus
>shows that there is easily >300Mb available.
>
>TotalPhys: 209113088
>AvailPhys: 166580224
>TotalPageFile: 309587968
>AvailPageFile: 275365888
>TotalVirtual: 2147352576
>AvailVirtual: 1589841920
>
>I tried a modified version of the program that uses VirtualAlloc/Free
>instead of mmap/munmap and it is able to allocate, zero, and free
>300Mb.
Sounds like you should be looking at the cygwin source code. That's
the best way to achieve clarity in cases like this.
cgf
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-12 14:53 mmap of large amount returns invalid pointer Heribert Dahms
2002-03-12 18:48 ` Stephen Weeks
@ 2002-03-13 2:23 ` Corinna Vinschen
2002-03-13 14:25 ` Stephen Weeks
1 sibling, 1 reply; 14+ messages in thread
From: Corinna Vinschen @ 2002-03-13 2:23 UTC (permalink / raw)
To: cygwin
On Tue, Mar 12, 2002 at 11:44:36PM +0100, Heribert Dahms wrote:
> Hi Stephen and Corinna,
>
> looks like you have overlooked that mmap doesn't return NULL
> despite win32 error in strace (see below):
>
> c:\>net helpmsg 1455
>
> The paging file is too small for this operation to complete.
No, I didn't overlook it, it's exactly what I've been seeing on
my machine as well as I mentioned yesterday.
If you look into the strace you'll see that MapViewOfFileEx()
returns a valid memory area. And no, it does *not* return an
error code. MapViewOfFileEx() is reliable enough to not return
a memory area and an error code.
The failing function is a following VirtualProtect() which job
is to set the memory protection on the allocated memory area
correctly. And that's actually surprising. VirtualProtect()
shouldn't have problems with memory since it doesn't allocate
any. At least it shouldn't.
But the real problem is that the page file is, well, full after
the mmap() call. A following printf is trying to allocate a
small amount of memory but allocation fails apparently and at
one point a check for a failed malloc() is missing.
So the SEGV is actually a followup of the fact that there isn't
any memory left to allocate.
> Second, (may mean nothing) why is h:188 first and h:190 second time?
Means nothing.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-13 2:23 ` Corinna Vinschen
@ 2002-03-13 14:25 ` Stephen Weeks
2002-03-14 4:30 ` Corinna Vinschen
0 siblings, 1 reply; 14+ messages in thread
From: Stephen Weeks @ 2002-03-13 14:25 UTC (permalink / raw)
To: cygwin
> If you look into the strace you'll see that MapViewOfFileEx()
> returns a valid memory area. And no, it does *not* return an
> error code. MapViewOfFileEx() is reliable enough to not return
> a memory area and an error code.
>
> The failing function is a following VirtualProtect() which job
> is to set the memory protection on the allocated memory area
> correctly. And that's actually surprising. VirtualProtect()
> shouldn't have problems with memory since it doesn't allocate
> any. At least it shouldn't.
Having now read mmap.cc, this is how I interpret the strace as well.
I'm afraid I know almost nothing about Windows and have no explanation
as to why the VirtualProtect fails.
> But the real problem is that the page file is, well, full after
> the mmap() call. A following printf is trying to allocate a
> small amount of memory but allocation fails apparently and at
> one point a check for a failed malloc() is missing.
> So the SEGV is actually a followup of the fact that there isn't
> any memory left to allocate.
I don't think this explanation is correct. I still think that mmap is
returning a pointer to an invalid chunk of memory. To demonstrate
this, here is a program that does an mmap, fprintf, and then attempts
to write to the first byte of the mmap'ed memory.
--------------------------------------------------------------------------------
#include <stdio.h>
#include <stdlib.h>
#include <sys/mman.h>
#include <unistd.h>
#include <windows.h>
void
die(char *fmt, ...)
{
va_list args;
fflush(stdout);
va_start(args, fmt);
vfprintf(stderr, fmt, args);
va_end(args);
fprintf(stderr, "\n");
exit(1);
}
int main (int argc, char **argv) {
uint length;
void *p;
length = 130000000;
p = mmap (NULL, length,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if ((void*)-1 == p)
die("mmap failed\n");
fprintf(stderr, "mmap succeeded\n");
((char*)p)[0] = 'a';
if (-1 == munmap(p, length))
die("munmap failed\n");
return 0;
}
--------------------------------------------------------------------------------
When I run this program, the mmap and fprintf succeed, and then there
is a segfault, presumably in the store to p[0]. Here is a snippet of
the strace to corroborate.
1546 597904 [main] bug 161 mmap: addr 0, len 130000000, prot 3, flags 22, fd -1, off 0
5208 603112 [main] bug 161 fhandler_disk_file::mmap: 2A230000 = MapViewOfFileEx (h:144, access:1, 0, off:0, len:130023424, addr:0)
7918 611030 [main] bug 161 mmap_record::map_map: -1 = map_map (): Win32 error 1455
1380 612410 [main] bug 161 mmap: 2A230000 = mmap() succeeded
1076 613486 [main] bug 161 _write: write (2, 0x22F758, 15)
1050 614536 [main] bug 161 fhandler_base::write: binary write
mmap succeeded
1060 615596 [main] bug 161 fhandler_base::write: 15 = write (0x22F758, 15)
1005 616601 [main] bug 161 _write: 15 = write (2, 0x22F758, 15)
2225 618826 [main] bug 161 handle_exceptions: In cygwin_except_handler exc 0xC0000005 at 0x401140 sp 0x22FE80
1043 619869 [main] bug 161 handle_exceptions: In cygwin_except_handler sig = 11 at 0x401140
1236 621105 [main] bug 161 handle_exceptions: In cygwin_except_handler calling 0x0
622178 [main] bug 161 handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
1073 622178 [main] bug 161 handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
On the other hand, if I decrease the length from 130,000,000 to
13,000,000, then the VirtualProtect does not complain, and the store
to p[0] and munmap both succeed. Here is the strace snippet.
1140 594523 [main] bug 68 mmap: addr 0, len 13000000, prot 3, flags 22, fd -1, off 0
7013 601536 [main] bug 68 fhandler_disk_file::mmap: 2A230000 = MapViewOfFileEx (h:144, access:1, 0, off:0, len:13041664, addr:0)
4912 606448 [main] bug 68 mmap: 2A230000 = mmap() succeeded
1185 607633 [main] bug 68 _write: write (2, 0x22F758, 15)
1614 609247 [main] bug 68 fhandler_base::write: binary write
mmap succeeded
1150 610397 [main] bug 68 fhandler_base::write: 15 = write (0x22F758, 15)
1024 611421 [main] bug 68 _write: 15 = write (2, 0x22F758, 15)
1141 612562 [main] bug 68 munmap: munmap (addr 2A230000, len 13000000)
3703 616265 [main] bug 68 munmap: 0 = munmap(): 2A230000
My conclusion remains that the mmap(130,000,000) is returning a
pointer to invalid memory. I don't know if the problem is connected
to the failure of VirtualProtect or not. I will continue to
investigate, but would still appreciate any assistance.
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-13 14:25 ` Stephen Weeks
@ 2002-03-14 4:30 ` Corinna Vinschen
2002-03-17 11:37 ` Stephen Weeks
0 siblings, 1 reply; 14+ messages in thread
From: Corinna Vinschen @ 2002-03-14 4:30 UTC (permalink / raw)
To: cygwin
On Wed, Mar 13, 2002 at 01:57:33PM -0800, Stephen Weeks wrote:
> I don't think this explanation is correct. I still think that mmap is
> returning a pointer to an invalid chunk of memory. To demonstrate
> this, here is a program that does an mmap, fprintf, and then attempts
> to write to the first byte of the mmap'ed memory.
The explanation wasn't quite correct, you're right, but the memory is
not invalid. It's correctly returned by MapViewOfFileEx and the same
value is returned by mmap(). However, it's *non-accessible* since all
pages are protected using PAGE_NOACCESS after the call to MapViewOfFileEx.
The next call to VirtualProtect which is responsible for setting the
correct protection mode on the used memory (used mem != allocated mem)
unfortunately fails. The result is that mmap() returns a correct
memory pointer which is nevertheless inaccessible. :-(
Anyway, I've checked in a patch. It now checks if VirtualProtect
failed and then mmap() also fails. Try the next developers snapshot,
please.
Thanks for the testcases,
Corinna
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-14 4:30 ` Corinna Vinschen
@ 2002-03-17 11:37 ` Stephen Weeks
2002-03-19 3:43 ` Corinna Vinschen
0 siblings, 1 reply; 14+ messages in thread
From: Stephen Weeks @ 2002-03-17 11:37 UTC (permalink / raw)
To: cygwin
Corinna:
> Anyway, I've checked in a patch. It now checks if VirtualProtect
> failed and then mmap() also fails. Try the next developers snapshot,
> please.
Thanks for the fix. I tried the 2002-Mar-16 snapshot and the test
program works correctly. However, a slightly modified program that
munmaps the memory in the parent process and then exits does not work
reliably. I have included the test case and an strace of a failed run
below. Because of timing issues, you may have to run the program
several times before you see the failure. As far as I can tell, the
problem is that the parent unmaps the memory before the child has a
chance to do "fixup_mmaps_after_fork".
--------------------------------------------------------------------------------
#include <stddef.h>
#include <stdio.h>
#include <sys/mman.h>
#include <sys/types.h>
#include <unistd.h>
void die (char *s) {
fprintf(stderr, "%d", s);
exit(1);
}
int main (int argc, char **argv) {
pid_t pid;
size_t length;
char *buf;
fprintf(stderr, "starting\n");
length = getpagesize ();
buf = (char*) mmap (NULL, length, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if (buf == (void*)-1)
die ("mmap failed");
strcpy (buf, "hello");
pid = fork ();
if (0 == pid) {
fprintf(stderr, "%s\n", buf);
munmap (buf, length);
} else {
fprintf(stderr, "%s\n", buf);
munmap (buf, length);
exit(0);
}
}
--------------------------------------------------------------------------------
**********************************************
Program name: c:\sweeks\tmp\fork.exe (63)
App version: 1003.10, api: 0.51
DLL version: 1003.11, api: 0.51
DLL build: 20020316 02:33:42SNP
OS version: Windows NT-4.0
Date/Time: 2002-03-17 10:41:52
**********************************************
6712 17708 [main] fork 63 environ_init: 0xA010420: !C:=C:\WINNT\Profiles\sweeks\Desktop
3119 20827 [main] fork 63 environ_init: 0xA010450: !Z:=Z:\cygwin\bin
2436 23263 [main] fork 63 environ_init: 0xA010468: COMPUTERNAME=WINDOZE
2324 25587 [main] fork 63 environ_init: 0xA010488: COMSPEC=C:\WINNT\system32\cmd.exe
2327 27914 [main] fork 63 environ_init: 0xA0104B0: CVSROOT=:pserver:anoncvs@sources.redhat.com:/cvs/src
2813 30727 [main] fork 63 parse_options: binmode 65536
2395 33122 [main] fork 63 parse_options: ntsec 1
2318 35440 [main] fork 63 parse_options: tty 1001
2314 37754 [main] fork 63 parse_options: returning
1375 39129 [main] fork 63 environ_init: 0xA0104F0: CYGWIN=binmode ntsec tty
2943 42072 [main] fork 63 getwinenv: can't set native for HOME= since no environ yet
2774 44846 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\home\sweeks, no-keep-rel, no-add-slash)
1531 46377 [main] fork 63 normalize_win32_path: z:\cygwin\home\sweeks = normalize_win32_path (z:\cygwin\home\sweeks)
1923 48300 [main] fork 63 mount_info::conv_to_posix_path: /home/sweeks = conv_to_posix_path (z:\cygwin\home\sweeks)
4062 52362 [main] fork 63 win_env::add_cache: posix /home/sweeks
1223 53585 [main] fork 63 win_env::add_cache: native HOME=z:\cygwin\home\sweeks
1217 54802 [main] fork 63 posify: env var converted to HOME=/home/sweeks
2330 57132 [main] fork 63 environ_init: 0xA010560: HOME=/home/sweeks
3177 60309 [main] fork 63 environ_init: 0xA010540: HOMEDRIVE=C:
2429 62738 [main] fork 63 environ_init: 0xA0106A8: HOMEPATH=\
2314 65052 [main] fork 63 environ_init: 0xA0106B8: LOGNAME=sweeks
2314 67366 [main] fork 63 environ_init: 0xA0106D0: LOGONSERVER=\\WINDOZE
2851 70217 [main] fork 63 environ_init: 0xA0106F0: MAIL=/var/spool/mail/sweeks
2407 72624 [main] fork 63 environ_init: 0xA010710: MAKE_MODE=unix
2323 74947 [main] fork 63 environ_init: 0xA010728: MANPATH=:/usr/ssl/man:/usr/ssl/man
2318 77265 [main] fork 63 environ_init: 0xA010750: NUMBER_OF_PROCESSORS=1
4838 82103 [main] fork 63 environ_init: 0xA010770: OLDPWD=/cygdrive/c/sweeks
3683 85786 [main] fork 63 environ_init: 0xA010790: OS2LIBPATH=C:\WINNT\system32\os2\dll;
2469 88255 [main] fork 63 environ_init: 0xA0107C0: OS=Windows_NT
2803 91058 [main] fork 63 getwinenv: can't set native for PATH= since no environ yet
2392 93450 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\home\sweeks\bin, keep-rel, no-add-slash)
1247 94697 [main] fork 63 normalize_win32_path: z:\cygwin\home\sweeks\bin = normalize_win32_path (z:\cygwin\home\sweeks\bin)
1231 95928 [main] fork 63 mount_info::conv_to_posix_path: /home/sweeks/bin = conv_to_posix_path (z:\cygwin\home\sweeks\bin)
1210 97138 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\sbin, keep-rel, no-add-slash)
1355 98493 [main] fork 63 normalize_win32_path: z:\cygwin\sbin = normalize_win32_path (z:\cygwin\sbin)
1718 100211 [main] fork 63 mount_info::conv_to_posix_path: /sbin = conv_to_posix_path (z:\cygwin\sbin)
1283 101494 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\usr\sbin, keep-rel, no-add-slash)
1220 102714 [main] fork 63 normalize_win32_path: z:\cygwin\usr\sbin = normalize_win32_path (z:\cygwin\usr\sbin)
1205 103919 [main] fork 63 mount_info::conv_to_posix_path: /usr/sbin = conv_to_posix_path (z:\cygwin\usr\sbin)
1199 105118 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\usr\local\bin, keep-rel, no-add-slash)
1200 106318 [main] fork 63 normalize_win32_path: z:\cygwin\usr\local\bin = normalize_win32_path (z:\cygwin\usr\local\bin)
1550 107868 [main] fork 63 mount_info::conv_to_posix_path: /usr/local/bin = conv_to_posix_path (z:\cygwin\usr\local\bin)
1461 109329 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\bin, keep-rel, no-add-slash)
1502 110831 [main] fork 63 normalize_win32_path: z:\cygwin\bin = normalize_win32_path (z:\cygwin\bin)
1273 112104 [main] fork 63 mount_info::conv_to_posix_path: /usr/bin = conv_to_posix_path (z:\cygwin\bin)
1213 113317 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\bin, keep-rel, no-add-slash)
1211 114528 [main] fork 63 normalize_win32_path: z:\cygwin\bin = normalize_win32_path (z:\cygwin\bin)
1202 115730 [main] fork 63 mount_info::conv_to_posix_path: /usr/bin = conv_to_posix_path (z:\cygwin\bin)
1201 116931 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\home\sweeks\bin, keep-rel, no-add-slash)
1351 118282 [main] fork 63 normalize_win32_path: z:\cygwin\home\sweeks\bin = normalize_win32_path (z:\cygwin\home\sweeks\bin)
1740 120022 [main] fork 63 mount_info::conv_to_posix_path: /home/sweeks/bin = conv_to_posix_path (z:\cygwin\home\sweeks\bin)
1283 121305 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\sbin, keep-rel, no-add-slash)
1202 122507 [main] fork 63 normalize_win32_path: z:\cygwin\sbin = normalize_win32_path (z:\cygwin\sbin)
1200 123707 [main] fork 63 mount_info::conv_to_posix_path: /sbin = conv_to_posix_path (z:\cygwin\sbin)
1195 124902 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\usr\sbin, keep-rel, no-add-slash)
1197 126099 [main] fork 63 normalize_win32_path: z:\cygwin\usr\sbin = normalize_win32_path (z:\cygwin\usr\sbin)
1196 127295 [main] fork 63 mount_info::conv_to_posix_path: /usr/sbin = conv_to_posix_path (z:\cygwin\usr\sbin)
1359 128654 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\usr\local\bin, keep-rel, no-add-slash)
1497 130151 [main] fork 63 normalize_win32_path: z:\cygwin\usr\local\bin = normalize_win32_path (z:\cygwin\usr\local\bin)
1269 131420 [main] fork 63 mount_info::conv_to_posix_path: /usr/local/bin = conv_to_posix_path (z:\cygwin\usr\local\bin)
1216 132636 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\bin, keep-rel, no-add-slash)
1204 133840 [main] fork 63 normalize_win32_path: z:\cygwin\bin = normalize_win32_path (z:\cygwin\bin)
1200 135040 [main] fork 63 mount_info::conv_to_posix_path: /usr/bin = conv_to_posix_path (z:\cygwin\bin)
1199 136239 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\bin, keep-rel, no-add-slash)
1190 137429 [main] fork 63 normalize_win32_path: z:\cygwin\bin = normalize_win32_path (z:\cygwin\bin)
1375 138804 [main] fork 63 mount_info::conv_to_posix_path: /usr/bin = conv_to_posix_path (z:\cygwin\bin)
1669 140473 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (c:\WINNT\system32, keep-rel, no-add-slash)
1279 141752 [main] fork 63 normalize_win32_path: c:\WINNT\system32 = normalize_win32_path (c:\WINNT\system32)
1222 142974 [main] fork 63 mount_info::conv_to_posix_path: /cygdrive/c/WINNT/system32 = conv_to_posix_path (c:\WINNT\system32)
1212 144186 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (c:\WINNT, keep-rel, no-add-slash)
1195 145381 [main] fork 63 normalize_win32_path: c:\WINNT = normalize_win32_path (c:\WINNT)
1206 146587 [main] fork 63 mount_info::conv_to_posix_path: /cygdrive/c/WINNT = conv_to_posix_path (c:\WINNT)
3836 150423 [main] fork 63 win_env::add_cache: posix /home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT
1273 151696 [main] fork 63 win_env::add_cache: native PATH=z:\cygwin\home\sweeks\bin;z:\cygwin\sbin;z:\cygwin\usr\sbin;z:\cygwin\usr\local\bin;z:\cygwin\bin;z:\cygwin\bin;z:\cygwin\home\sweeks\bin;z:\cygwin\sbin;z:\cygwin\usr\sbin;z:\cygwin\usr\local\bin;z:\cygwin\bin;z:\cygwin\bin;c:\WINNT\system32;c:\WINNT
1448 153144 [main] fork 63 posify: env var converted to PATH=/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT
2370 155514 [main] fork 63 environ_init: 0xA0108E0: PATH=/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT
2300 157814 [main] fork 63 environ_init: 0xA0107D8: PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
3189 161003 [main] fork 63 environ_init: 0xA010818: PROCESSOR_ARCHITECTURE=x86
2401 163404 [main] fork 63 environ_init: 0xA010838: PROCESSOR_IDENTIFIER=x86 Family 15 Model 1 Stepping 2, GenuineIntel
2295 165699 [main] fork 63 environ_init: 0xA010880: PROCESSOR_LEVEL=15
2442 168141 [main] fork 63 environ_init: 0xA010898: PROCESSOR_REVISION=0102
2639 170780 [main] fork 63 environ_init: 0xA0108B8: PROMPT=$P$G
2372 173152 [main] fork 63 environ_init: 0xA0108C8: PS1=\W%
2293 175445 [main] fork 63 environ_init: 0xA010C78: PWD=/cygdrive/c/sweeks/tmp
2282 177727 [main] fork 63 environ_init: 0xA010C98: SHELL=/bin/bash
3061 180788 [main] fork 63 environ_init: 0xA010CB0: SHLVL=2
2381 183169 [main] fork 63 environ_init: 0xA010CC0: SSH_CLIENT=192.168.101.1 56946 22
2288 185457 [main] fork 63 environ_init: 0xA010CE8: SSH_TTY=/dev/tty1
2269 187726 [main] fork 63 environ_init: 0xA010D00: SYSTEMDRIVE=C:
2815 190541 [main] fork 63 environ_init: 0xA010D18: SYSTEMROOT=C:\WINNT
2384 192925 [main] fork 63 getwinenv: can't set native for TEMP= since no environ yet
2284 195209 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (c:\TEMP, no-keep-rel, no-add-slash)
1189 196398 [main] fork 63 normalize_win32_path: c:\TEMP = normalize_win32_path (c:\TEMP)
1191 197589 [main] fork 63 mount_info::conv_to_posix_path: /cygdrive/c/TEMP = conv_to_posix_path (c:\TEMP)
4331 201920 [main] fork 63 win_env::add_cache: posix /cygdrive/c/TEMP
1205 203125 [main] fork 63 win_env::add_cache: native TEMP=c:\TEMP
1191 204316 [main] fork 63 posify: env var converted to TEMP=/cygdrive/c/TEMP
2274 206590 [main] fork 63 environ_init: 0xA010D48: TEMP=/cygdrive/c/TEMP
2435 209025 [main] fork 63 environ_init: 0xA010D30: TERM=xterm
2633 211658 [main] fork 63 getwinenv: can't set native for TMP= since no environ yet
2303 213961 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (c:\TEMP, no-keep-rel, no-add-slash)
1181 215142 [main] fork 63 normalize_win32_path: c:\TEMP = normalize_win32_path (c:\TEMP)
1192 216334 [main] fork 63 mount_info::conv_to_posix_path: /cygdrive/c/TEMP = conv_to_posix_path (c:\TEMP)
4270 220604 [main] fork 63 win_env::add_cache: posix /cygdrive/c/TEMP
1279 221883 [main] fork 63 win_env::add_cache: native TMP=c:\TEMP
1201 223084 [main] fork 63 posify: env var converted to TMP=/cygdrive/c/TEMP
2277 225361 [main] fork 63 environ_init: 0xA010E98: TMP=/cygdrive/c/TEMP
2278 227639 [main] fork 63 environ_init: 0xA010FD0: TZ=PST8PDT7,M4.1.0/2,M10.5.0/2
2756 230395 [main] fork 63 environ_init: 0xA010E88: USER=sweeks
2742 233137 [main] fork 63 environ_init: 0xA010FF8: USERDOMAIN=WINDOZE
2319 235456 [main] fork 63 environ_init: 0xA011010: USERNAME=sweeks
2276 237732 [main] fork 63 environ_init: 0xA011028: USERPROFILE=C:\WINNT\Profiles\sweeks
3043 240775 [main] fork 63 environ_init: 0xA011058: WINDIR=C:\WINNT
2380 243155 [main] fork 63 environ_init: 0xA011070: _=/home/sweeks/bin/doit
5122 248277 [main] fork 63 pinfo_init: pid 63, pgid 63
2334 250611 [main] fork 63 dtable::extend: size 32, fds 0x615C0128
7612 258223 [main] fork 63 internal_getlogin: GetUserName() = sweeks
2277 260500 [main] fork 63 internal_getlogin: User: sweeks, Domain: WINDOZE, Logon Server: WINDOZE
1326 261826 [main] fork 63 internal_getlogin: Domain: WINDOZE, Logon Server: WINDOZE, Windows Username: sweeks
1883 263709 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (0)
1439 265148 [main] fork 63 _cygwin_istext_for_stdio: _cifs: fd not open
1331 266479 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (1)
1200 267679 [main] fork 63 _cygwin_istext_for_stdio: _cifs: fd not open
1366 269045 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (2)
1581 270626 [main] fork 63 _cygwin_istext_for_stdio: _cifs: fd not open
1386 272012 [main] fork 63 _open: open (/etc/passwd, 0x20000)
1621 273633 [main] fork 63 normalize_posix_path: src /etc/passwd
1544 275177 [main] fork 63 normalize_posix_path: /etc/passwd = normalize_posix_path (/etc/passwd)
1333 276510 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/etc/passwd)
1387 277897 [main] fork 63 mount_info::conv_to_win32_path: src_path /etc/passwd, dst z:\cygwin\etc\passwd, flags 0xA, rc 0
8444 286341 [main] fork 63 symlink_info::check: not a symlink
1579 287920 [main] fork 63 symlink_info::check: 0 = symlink.check (z:\cygwin\etc\passwd, 0x22E7A0) (0xA)
1293 289213 [main] fork 63 path_conv::check: root_dir(z:\), this->path(z:\cygwin\etc\passwd), set_has_acls(8)
1588 290801 [main] fork 63 dtable::build_fhandler: fd 3, fh 0x615C02C8
1686 292487 [main] fork 63 fhandler_base::open: (z:\cygwin\etc\passwd, 0x20000)
3306 295793 [main] fork 63 fhandler_base::open: 0xE0 = CreateFileA (z:\cygwin\etc\passwd, 0x80000000, 0x7, 0x22EBE0, 0x3, 0x80, 0)
1336 297129 [main] fork 63 fhandler_base::open: filemode set to text
1403 298532 [main] fork 63 fhandler_base::open: 1 = fhandler_base::open (z:\cygwin\etc\passwd, 0x20000)
1356 299888 [main] fork 63 fhandler_disk_file::open: 1 = fhandler_disk_file::open (z:\cygwin\etc\passwd, 0x20000)
1258 301146 [main] fork 63 _open: 3 = open (/etc/passwd, 0x20000)
1237 302383 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1216 303599 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
5425 309024 [main] fork 63 fhandler_disk_file::fstat_helper: 1 = GetFileInformationByHandle (z:\cygwin\etc\passwd, 224)
2035 311059 [main] fork 63 get_nt_attribute: file: z:\cygwin\etc\passwd
1883 312942 [main] fork 63 read_sd: file = z:\cygwin\etc\passwd
11144 324086 [main] fork 63 read_sd: file = z:\cygwin\etc\passwd: len=176
1755 325841 [main] fork 63 _open: open (/etc/group, 0x20000)
1694 327535 [main] fork 63 normalize_posix_path: src /etc/group
1494 329029 [main] fork 63 normalize_posix_path: /etc/group = normalize_posix_path (/etc/group)
1824 330853 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/etc/group)
1372 332225 [main] fork 63 mount_info::conv_to_win32_path: src_path /etc/group, dst z:\cygwin\etc\group, flags 0xA, rc 0
4612 336837 [main] fork 63 symlink_info::check: not a symlink
1447 338284 [main] fork 63 symlink_info::check: 0 = symlink.check (z:\cygwin\etc\group, 0x22CB30) (0xA)
1411 339695 [main] fork 63 path_conv::check: root_dir(z:\), this->path(z:\cygwin\etc\group), set_has_acls(8)
1733 341428 [main] fork 63 dtable::build_fhandler: fd 4, fh 0x615C03C0
1352 342780 [main] fork 63 fhandler_base::open: (z:\cygwin\etc\group, 0x20000)
2920 345700 [main] fork 63 fhandler_base::open: 0xFC = CreateFileA (z:\cygwin\etc\group, 0x80000000, 0x7, 0x22CF70, 0x3, 0x80, 0)
1376 347076 [main] fork 63 fhandler_base::open: filemode set to text
1278 348354 [main] fork 63 fhandler_base::open: 1 = fhandler_base::open (z:\cygwin\etc\group, 0x20000)
1257 349611 [main] fork 63 fhandler_disk_file::open: 1 = fhandler_disk_file::open (z:\cygwin\etc\group, 0x20000)
1858 351469 [main] fork 63 _open: 4 = open (/etc/group, 0x20000)
1304 352773 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1276 354049 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
4788 358837 [main] fork 63 fhandler_disk_file::fstat_helper: 1 = GetFileInformationByHandle (z:\cygwin\etc\group, 252)
2083 360920 [main] fork 63 get_nt_attribute: file: z:\cygwin\etc\group
1412 362332 [main] fork 63 read_sd: file = z:\cygwin\etc\group
18806 381138 [main] fork 63 read_sd: file = z:\cygwin\etc\group: len=176
1828 382966 [main] fork 63 get_nt_attribute: file: z:\cygwin\etc\group 1E4, uid 2000, gid 2001
1479 384445 [main] fork 63 fhandler_disk_file::fstat_helper: 0 = fstat (, 0x22D240) st_atime=3C94E3A1 st_size=277, st_mode=0x81E4, st_ino=325591779, sizeof=88
1406 385851 [main] fork 63 fstat64: 0 = fstat (4, 0x22D240)
1335 387186 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1468 388654 [main] fork 63 _cygwin_istext_for_stdio: _cifs: get_*_binary
1580 390234 [main] fork 63 setmode_helper: setmode: file was cle now raw
1331 391565 [main] fork 63 setmode: setmode (4</etc/group>, binary) returns text
1297 392862 [main] fork 63 _read: read (4, 0xA011200, 1024) blocking, sigcatchers 0
1286 394148 [main] fork 63 _read: non-interruptible read
3295 397443 [main] fork 63 fhandler_base::read: returning 277 chars, binary mode
1609 399052 [main] fork 63 _read: 277 = read (4, 0xA011200, 1024), errno 0
1369 400421 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1557 401978 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1285 403263 [main] fork 63 setmode_helper: setmode: file was raw now cle
1267 404530 [main] fork 63 setmode: setmode (4</etc/group>, text) returns binary
24108 428638 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1708 430346 [main] fork 63 _cygwin_istext_for_stdio: _cifs: get_*_binary
1323 431669 [main] fork 63 setmode_helper: setmode: file was cle now raw
1259 432928 [main] fork 63 setmode: setmode (4</etc/group>, binary) returns text
1272 434200 [main] fork 63 _read: read (4, 0xA011200, 1024) blocking, sigcatchers 0
1281 435481 [main] fork 63 _read: non-interruptible read
2793 438274 [main] fork 63 _read: 0 = read (4, 0xA011200, 1024), errno 0
1542 439816 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1865 441681 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1543 443224 [main] fork 63 setmode_helper: setmode: file was raw now cle
1258 444482 [main] fork 63 setmode: setmode (4</etc/group>, text) returns binary
2797 447279 [main] fork 63 _close: close (4)
1528 448807 [main] fork 63 fhandler_base::close: closing '/etc/group' handle 0xFC
3334 452141 [main] fork 63 _close: 0 = close (4)
1558 453699 [main] fork 63 normalize_posix_path: src /etc
1329 455028 [main] fork 63 normalize_posix_path: /etc = normalize_posix_path (/etc)
1279 456307 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/etc)
1293 457600 [main] fork 63 mount_info::conv_to_win32_path: src_path /etc, dst z:\cygwin\etc, flags 0xA, rc 0
5001 462601 [main] fork 63 symlink_info::check: not a symlink
1394 463995 [main] fork 63 symlink_info::check: 0 = symlink.check (z:\cygwin\etc, 0x22CF60) (0xA)
1266 465261 [main] fork 63 path_conv::check: root_dir(z:\), this->path(z:\cygwin\etc), set_has_acls(8)
2939 468200 [main] fork 63 get_nt_attribute: file: z:\cygwin\etc\passwd 1C0, uid 2000, gid 2001
1416 469616 [main] fork 63 fhandler_disk_file::fstat_helper: 0 = fstat (, 0x22EEB0) st_atime=3C94E3A1 st_size=482, st_mode=0x81C0, st_ino=387896088, sizeof=88
2504 472120 [main] fork 63 fstat64: 0 = fstat (3, 0x22EEB0)
1615 473735 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1286 475021 [main] fork 63 _cygwin_istext_for_stdio: _cifs: get_*_binary
1256 476277 [main] fork 63 setmode_helper: setmode: file was cle now raw
1255 477532 [main] fork 63 setmode: setmode (3</etc/passwd>, binary) returns text
1280 478812 [main] fork 63 _read: read (3, 0xA011200, 1024) blocking, sigcatchers 0
1581 480393 [main] fork 63 _read: non-interruptible read
2923 483316 [main] fork 63 fhandler_base::read: returning 482 chars, binary mode
1371 484687 [main] fork 63 _read: 482 = read (3, 0xA011200, 1024), errno 0
1558 486245 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1334 487579 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1264 488843 [main] fork 63 setmode_helper: setmode: file was raw now cle
1314 490157 [main] fork 63 setmode: setmode (3</etc/passwd>, text) returns binary
9786 499943 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1655 501598 [main] fork 63 _cygwin_istext_for_stdio: _cifs: get_*_binary
1506 503104 [main] fork 63 setmode_helper: setmode: file was cle now raw
1281 504385 [main] fork 63 setmode: setmode (3</etc/passwd>, binary) returns text
1261 505646 [main] fork 63 _read: read (3, 0xA011200, 1024) blocking, sigcatchers 0
1259 506905 [main] fork 63 _read: non-interruptible read
2710 509615 [main] fork 63 _read: 0 = read (3, 0xA011200, 1024), errno 0
1701 511316 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1314 512630 [main] fork 63 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1408 514038 [main] fork 63 setmode_helper: setmode: file was raw now cle
1267 515305 [main] fork 63 setmode: setmode (3</etc/passwd>, text) returns binary
2823 518128 [main] fork 63 _close: close (3)
1371 519499 [main] fork 63 fhandler_base::close: closing '/etc/passwd' handle 0xE0
3020 522519 [main] fork 63 _close: 0 = close (3)
2824 525343 [main] fork 63 internal_getlogin: Cygwins Username: sweeks
3369 528712 [main] fork 63 sigproc_init: process/signal handling enabled(1001)
4533 533245 [main] fork 63 transport_layer_pipes::connect: Error opening the pipe (2)
24185 557430 [sig] fork 63 wait_sig: sigcatch_nonmain 0x30, sigcatch_main 0x38
1580 559010 [sig] fork 63 wait_sig: Ready. dwProcessid 63
70036 629046 [main] fork 63 tty_list::allocate_tty: console 19F0080 already associated with tty0
3146 632192 [main] fork 63 build_argv: argv[0] = './fork'
1130 633322 [main] fork 63 build_argv: argc 1
2173 635495 [main] fork 63 normalize_posix_path: src /dev/piper
1914 637409 [main] fork 63 normalize_posix_path: /dev/piper = normalize_posix_path (/dev/piper)
1325 638734 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/dev/piper)
1811 640545 [main] fork 63 mount_info::conv_to_win32_path: src_path /dev/piper, dst \dev\piper, flags 0x2, rc 0
1415 641960 [main] fork 63 dtable::build_fhandler: fd 0, fh 0x615C02C8
1306 643266 [main] fork 63 fhandler_base::init: created new fhandler_base for handle 0x1D4
1276 644542 [main] fork 63 dtable::init_std_file_from_handle: fd 0, handle 0x1D4
2240 646782 [main] fork 63 normalize_posix_path: src unknown disk file
1484 648266 [main] fork 63 mount_info::conv_to_posix_path: conv_to_posix_path (c:\sweeks\tmp, no-keep-rel, no-add-slash)
1569 649835 [main] fork 63 normalize_win32_path: c:\sweeks\tmp = normalize_win32_path (c:\sweeks\tmp)
1850 651685 [main] fork 63 mount_info::conv_to_posix_path: /cygdrive/c/sweeks/tmp = conv_to_posix_path (c:\sweeks\tmp)
1289 652974 [main] fork 63 cwdstuff::get: posix /cygdrive/c/sweeks/tmp
1210 654184 [main] fork 63 cwdstuff::get: (/cygdrive/c/sweeks/tmp) = cwdstuff::get (0x22F950, 260, 1, 0), errno 0
1200 655384 [main] fork 63 normalize_posix_path: /cygdrive/c/sweeks/tmp/unknown disk file = normalize_posix_path (unknown disk file)
1189 656573 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c/sweeks/tmp/unknown disk file)
1195 657768 [main] fork 63 mount_info::cygdrive_win32_path: src '/cygdrive/c/sweeks/tmp/unknown disk file', dst 'c:\sweeks\tmp\unknown disk file'
1194 658962 [main] fork 63 mount_info::conv_to_win32_path: src_path /cygdrive/c/sweeks/tmp/unknown disk file, dst c:\sweeks\tmp\unknown disk file, flags 0x22, rc 0
3292 662254 [main] fork 63 symlink_info::check: GetFileAttributes (c:\sweeks\tmp\unknown disk file) failed
1383 663637 [main] fork 63 geterrno_from_win_error: windows error 2 == errno 2
1409 665046 [main] fork 63 symlink_info::check: GetFileAttributes (c:\sweeks\tmp\unknown disk file.lnk) failed
1499 666545 [main] fork 63 geterrno_from_win_error: windows error 2 == errno 2
1266 667811 [main] fork 63 symlink_info::check: 0 = symlink.check (c:\sweeks\tmp\unknown disk file, 0x22F610) (0x22)
1205 669016 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c/sweeks/tmp)
2297 671313 [main] fork 63 mount_info::cygdrive_win32_path: src '/cygdrive/c/sweeks/tmp', dst 'c:\sweeks\tmp'
1325 672638 [main] fork 63 mount_info::conv_to_win32_path: src_path /cygdrive/c/sweeks/tmp, dst c:\sweeks\tmp, flags 0x22, rc 0
1419 674057 [main] fork 63 symlink_info::check: not a symlink
1272 675329 [main] fork 63 symlink_info::check: 0 = symlink.check (c:\sweeks\tmp, 0x22F610) (0x22)
1204 676533 [main] fork 63 path_conv::check: root_dir(c:\), this->path(c:\sweeks\tmp\unknown disk file), set_has_acls(8)
1226 677759 [main] fork 63 dtable::build_fhandler: fd 1, fh 0x615C03C0
1227 678986 [main] fork 63 fhandler_base::init: created new fhandler_base for handle 0x78
2273 681259 [main] fork 63 dtable::init_std_file_from_handle: fd 1, handle 0x78
2128 683387 [main] fork 63 normalize_posix_path: src unknown disk file
1267 684654 [main] fork 63 cwdstuff::get: posix /cygdrive/c/sweeks/tmp
1196 685850 [main] fork 63 cwdstuff::get: (/cygdrive/c/sweeks/tmp) = cwdstuff::get (0x22F940, 260, 1, 0), errno 0
1194 687044 [main] fork 63 normalize_posix_path: /cygdrive/c/sweeks/tmp/unknown disk file = normalize_posix_path (unknown disk file)
1187 688231 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c/sweeks/tmp/unknown disk file)
1326 689557 [main] fork 63 mount_info::cygdrive_win32_path: src '/cygdrive/c/sweeks/tmp/unknown disk file', dst 'c:\sweeks\tmp\unknown disk file'
1748 691305 [main] fork 63 mount_info::conv_to_win32_path: src_path /cygdrive/c/sweeks/tmp/unknown disk file, dst c:\sweeks\tmp\unknown disk file, flags 0x22, rc 0
1888 693193 [main] fork 63 symlink_info::check: GetFileAttributes (c:\sweeks\tmp\unknown disk file) failed
1318 694511 [main] fork 63 geterrno_from_win_error: windows error 2 == errno 2
1397 695908 [main] fork 63 symlink_info::check: GetFileAttributes (c:\sweeks\tmp\unknown disk file.lnk) failed
1258 697166 [main] fork 63 geterrno_from_win_error: windows error 2 == errno 2
1196 698362 [main] fork 63 symlink_info::check: 0 = symlink.check (c:\sweeks\tmp\unknown disk file, 0x22F600) (0x22)
1369 699731 [main] fork 63 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c/sweeks/tmp)
1528 701259 [main] fork 63 mount_info::cygdrive_win32_path: src '/cygdrive/c/sweeks/tmp', dst 'c:\sweeks\tmp'
1265 702524 [main] fork 63 mount_info::conv_to_win32_path: src_path /cygdrive/c/sweeks/tmp, dst c:\sweeks\tmp, flags 0x22, rc 0
1365 703889 [main] fork 63 symlink_info::check: not a symlink
1259 705148 [main] fork 63 symlink_info::check: 0 = symlink.check (c:\sweeks\tmp, 0x22F600) (0x22)
1201 706349 [main] fork 63 path_conv::check: root_dir(c:\), this->path(c:\sweeks\tmp\unknown disk file), set_has_acls(8)
1209 707558 [main] fork 63 dtable::build_fhandler: fd 2, fh 0x615C0708
1199 708757 [main] fork 63 fhandler_base::init: created new fhandler_base for handle 0x54
1350 710107 [main] fork 63 dtable::init_std_file_from_handle: fd 2, handle 0x54
1792 711899 [main] fork 63 dll_list::init: here
1480 713379 [main] fork 63 dll_crt0_1: user_data->main 0x401094
1356 714735 [main] fork 63 sig_send: pid 63, signal -2, its_me 1
1376 716111 [main] fork 63 sig_send: Waiting for thiscomplete 0x48
1348 717459 [sig] fork 63 wait_sig: awake
1221 718680 [sig] fork 63 wait_sig: processing signal -2
1385 720065 [sig] fork 63 wait_sig: set main thread completion event
1498 721563 [sig] fork 63 wait_sig: looping
1299 722862 [main] fork 63 sig_send: returning 0 from sending signal -2
1330 724192 [main] fork 63 _write: write (2, 0x22F758, 9)
1260 725452 [main] fork 63 fhandler_base::write: binary write
starting
1560 727012 [main] fork 63 fhandler_base::write: 9 = write (0x22F758, 9)
1251 728263 [main] fork 63 _write: 9 = write (2, 0x22F758, 9)
1620 729883 [main] fork 63 mmap64: addr 0, len 4096, prot 3, flags 22, fd -1, off 0
4448 734331 [main] fork 63 fhandler_disk_file::mmap: 2A230000 = MapViewOfFileEx (h:88, access:1, 0, off:0, len:65536, addr:0)
4635 738966 [main] fork 63 mmap64: 2A230000 = mmap() succeeded
2102 741068 [main] fork 63 fork: entering
3084 744152 [main] fork 63 subproc_init: started wait_subproc thread 0x74
3404 747556 [main] fork 63 stack_base: bottom 0x230000, top 0x30000, stack 0x22F808, size 2040, reserve 2097152
1584 749140 [main] fork 63 fork_parent: CreateProcess (c:\sweeks\tmp\fork.exe, c:\sweeks\tmp\fork.exe, 0, 0, 1, 20, 0, 0, 0x22FC78, 0x22FCC8)
8211 757351 [main] fork 63 proc_subproc: args: 1, 2291816
1886 759237 [main] fork 63 proc_subproc: added pid 138 to wait list, slot 0, winpid 0x8A, handle 0x198
3194 762431 [proc] fork 63 wait_subproc: starting
1377 763808 [proc] fork 63 wait_subproc: looping
14670 778478 [main] fork 63 proc_subproc: returning 1
1383 779861 [main] fork 63 sync_with_child: waiting for child. reason: waiting for longjmp, hang_child 1
**********************************************
Program name: c:\sweeks\tmp\fork.exe (138)
App version: 1003.10, api: 0.51
DLL version: 1003.11, api: 0.51
DLL build: 20020316 02:33:42SNP
OS version: Windows NT-4.0
Date/Time: 2002-03-17 10:41:53
**********************************************
1460 10272 [main] fork 138 open_shared: name shared, shared 0xA000000 (wanted 0xA000000), h 0x148
10409 20681 [main] fork 138 heap_init: heap base 0xA010000, heap top 0xA012000
1818 22499 [main] fork 138 open_shared: name sweeks, shared 0x890000 (wanted 0x0), h 0x1C
1301 23800 [main] fork 138 memory_init: opening mount table for 'sweeks' at 0xA010000
1285 25085 [main] fork 138 memory_init: mount table version 41FB at 0x890000
1745 26830 [main] fork 138 events_init: windows_system_directory 'C:\WINNT\System32\', windows_system_directory_length 18
1785 28615 [main] fork 138 events_init: cygwin_hmodule 0x61000000
3384 31999 [main] fork 138 fork_child: child is running. pid 138, ppid 63, stack here 0x22FCE8
1604 33603 [main] fork 138 fork_child: Impersonation of child, token: -1
1462 35065 [main] fork 138 sync_with_parent: signalling parent: after longjmp.
79233 859094 [main] fork 63 sync_with_child: child signalled me
1257 860351 [main] fork 63 fork_parent: child is alive (but stopped)
2001 862352 [main] fork 63 fork_copy: child handle 0x198, low 0x402000, high 0x402014, res 1
1629 863981 [main] fork 63 fork_copy: child handle 0x198, low 0x403000, high 0x40300C, res 1
2023 866004 [main] fork 63 fork_copy: child handle 0x198, low 0xA010000, high 0xA012000, res 1
1781 867785 [main] fork 63 fork_copy: child handle 0x198, low 0x22FD00, high 0x230000, res 1
2299 870084 [main] fork 63 fork_copy: child handle 0x198, low 0x610A3000, high 0x610A75E0, res 1
8445 878529 [main] fork 63 fork_copy: child handle 0x198, low 0x610C3000, high 0x610F9410, res 1
1439 879968 [main] fork 63 fork_copy: done
1788 881756 [main] fork 63 resume_child: signalled child
1295 883051 [main] fork 63 sync_with_child: waiting for child. reason: child loading dlls, hang_child 0
849575 884640 [main] fork 138 sync_with_parent: awake
1332 885972 [main] fork 138 sync_with_parent: no problems
1212 887184 [main] fork 138 fork_child: hParent 0xF4, child 1 first_dll 0x0, load_dlls 0
1241 888425 [main] fork 138 set_file_api_mode: File APIs set to ANSI
1295 889720 [main] fork 138 sync_with_parent: signalling parent: performed fork fixup.
8410 891461 [main] fork 63 sync_with_child: child signalled me
1346 892807 [main] fork 63 fork: 138 = fork()
1547 894354 [main] fork 63 _write: write (2, 0x22F758, 6)
1413 895767 [main] fork 63 fhandler_base::write: binary write
hello
1403 897170 [main] fork 63 fhandler_base::write: 6 = write (0x22F758, 6)
1483 898653 [main] fork 63 _write: 6 = write (2, 0x22F758, 6)
1313 899966 [main] fork 63 munmap: munmap (addr 2A230000, len 4096)
3091 903057 [main] fork 63 munmap: 0 = munmap(): 2A230000
1437 904494 [main] fork 63 do_exit: do_exit (0)
1324 905818 [main] fork 63 void: 0x0 = signal (20, 0x1)
1347 907165 [main] fork 63 void: 0x0 = signal (1, 0x1)
1304 908469 [main] fork 63 void: 0x0 = signal (2, 0x1)
1204 909673 [main] fork 63 void: 0x0 = signal (3, 0x1)
21544 911264 [main] fork 138 fixup_mmaps_after_fork: recreate_mmaps_after_fork, mmapped_areas 0xA011BF0
1304 912568 [main] fork 138 fixup_mmaps_after_fork: fd -1, h 88, access 1, offset 0, size 65536, address 0x2A230000
914381 [main] fork 138 fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE address 0x2A230000, Win32 error 998
11402 921075 [main] fork 63 fhandler_base::close: closing '/dev/piper' handle 0x1D4
1813 914381 [main] fork 138 fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE address 0x2A230000, Win32 error 998
c:\sweeks\tmp\fork.exe: *** recreate_mmaps_after_fork_failed
156122 1070503 [main] fork 138 proc_terminate: nchildren 0, nzombies 0
2029 1072532 [main] fork 138 proc_terminate: leaving
1536 1074068 [main] fork 138 sigproc_terminate: entering
1239 1075307 [main] fork 138 sigproc_terminate: done
1360 1076667 [main] fork 138 __to_clock_t: dwHighDateTime 0, dwLowDateTime 801152
1368 1078035 [main] fork 138 __to_clock_t: total 00000000 00000050
1321 1079356 [main] fork 138 __to_clock_t: dwHighDateTime 0, dwLowDateTime 100144
1222 1080578 [main] fork 138 __to_clock_t: total 00000000 0000000A
164782 1085857 [main] fork 63 fhandler_base::close: closing 'unknown disk file' handle 0x78
1573 1087430 [main] fork 63 fhandler_base::close: closing 'unknown disk file' handle 0x54
1391 1088821 [main] fork 63 proc_terminate: nchildren 1, nzombies 0
2483 1091304 [proc] fork 63 wait_subproc: looping
2939 1094243 [proc] fork 63 wait_subproc: done
3571 1097814 [main] fork 63 proc_subproc: args: 3, 1
1299 1099113 [main] fork 63 proc_subproc: clear waiting threads
1207 1100320 [main] fork 63 proc_subproc: finished clearing
3189 1103509 [main] fork 63 proc_subproc: returning 1
1417 1104926 [main] fork 63 proc_terminate: 138(138) closed child handle
1372 1106298 [main] fork 63 proc_terminate: leaving
1263 1107561 [main] fork 63 sigproc_terminate: entering
1205 1108766 [main] fork 63 sigproc_terminate: done
1205 1109971 [main] fork 63 do_exit: 63 == pgrp 63, send SIG{HUP,CONT} to stopped children
1603 1111574 [main] fork 63 kill_pgrp: pid 63, signal -1
13056 1124630 [main] fork 63 pinfo::init: execed process windows pid 191, cygwin pid 117
1750 1126380 [main] fork 63 pinfo::init: execed process windows pid 196, cygwin pid 238
1772 1128152 [main] fork 63 kill_pgrp: -1 = kill (63, -1)
6432 1134584 [main] fork 63 do_exit: 63 == sid 63, send SIGHUP to children
2814 1137398 [main] fork 63 __to_clock_t: dwHighDateTime 0, dwLowDateTime 7310512
1258 1138656 [main] fork 63 __to_clock_t: total 00000000 000002DB
1227 1139883 [main] fork 63 __to_clock_t: dwHighDateTime 0, dwLowDateTime 200288
1733 1141616 [main] fork 63 __to_clock_t: total 00000000 00000014
86887 1167465 [main] fork 138 _pinfo::exit: Calling ExitProcess 1
47644 1189260 [main] fork 63 _pinfo::exit: Calling ExitProcess 0
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-17 11:37 ` Stephen Weeks
@ 2002-03-19 3:43 ` Corinna Vinschen
2002-03-21 11:28 ` Stephen Weeks
0 siblings, 1 reply; 14+ messages in thread
From: Corinna Vinschen @ 2002-03-19 3:43 UTC (permalink / raw)
To: cygwin
On Sun, Mar 17, 2002 at 10:51:29AM -0800, Stephen Weeks wrote:
>
> Corinna:
> > Anyway, I've checked in a patch. It now checks if VirtualProtect
> > failed and then mmap() also fails. Try the next developers snapshot,
> > please.
>
> Thanks for the fix. I tried the 2002-Mar-16 snapshot and the test
> program works correctly. However, a slightly modified program that
> munmaps the memory in the parent process and then exits does not work
> reliably. I have included the test case and an strace of a failed run
I'm on vacation currently so I'm not really inclined to test that
by myself. Could you please describe what happens in the error case
in plain English? I see that there could be a timing problem in
fork() but I'd like to read how the error looks like.
Thanks,
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-19 3:43 ` Corinna Vinschen
@ 2002-03-21 11:28 ` Stephen Weeks
2002-04-09 9:35 ` Corinna Vinschen
0 siblings, 1 reply; 14+ messages in thread
From: Stephen Weeks @ 2002-03-21 11:28 UTC (permalink / raw)
To: cygwin
> Could you please describe what happens in the error case
> in plain English? I see that there could be a timing problem in
> fork() but I'd like to read how the error looks like.
The process mmaps some memory, writes to the memory, and then forks.
After the fork, the parent unmaps the memory and exits, while the
child reads from the memory. From looking at the strace, I see that
the Cygwin fork implementation allows the parent process to continue
before ensuring that the child has completed the memory copy. In this
case, the parent unmaps the memory before the child can copy it.
Hence, we see the following line in the strace, which indicates the
failure in the child process (138).
1813 914381 [main] fork 138 fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE address 0x2A230000, Win32 error 998
c:\sweeks\tmp\fork.exe: *** recreate_mmaps_after_fork_failed
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-21 11:28 ` Stephen Weeks
@ 2002-04-09 9:35 ` Corinna Vinschen
0 siblings, 0 replies; 14+ messages in thread
From: Corinna Vinschen @ 2002-04-09 9:35 UTC (permalink / raw)
To: cygwin
On Thu, Mar 21, 2002 at 11:15:52AM -0800, Stephen Weeks wrote:
>
> > Could you please describe what happens in the error case
> > in plain English? I see that there could be a timing problem in
> > fork() but I'd like to read how the error looks like.
>
> The process mmaps some memory, writes to the memory, and then forks.
> After the fork, the parent unmaps the memory and exits, while the
> child reads from the memory. From looking at the strace, I see that
> the Cygwin fork implementation allows the parent process to continue
> before ensuring that the child has completed the memory copy. In this
> case, the parent unmaps the memory before the child can copy it.
> Hence, we see the following line in the strace, which indicates the
> failure in the child process (138).
>
> 1813 914381 [main] fork 138 fixup_mmaps_after_fork: ReadProcessMemory failed for MAP_PRIVATE address 0x2A230000, Win32 error 998
> c:\sweeks\tmp\fork.exe: *** recreate_mmaps_after_fork_failed
I've checked in a fix. Please try the next devlopers snapshot
or current from CVS.
Thanks for the report and the testcase,
Corinna
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-12 11:17 ` Stephen Weeks
@ 2002-03-12 12:44 ` Corinna Vinschen
0 siblings, 0 replies; 14+ messages in thread
From: Corinna Vinschen @ 2002-03-12 12:44 UTC (permalink / raw)
To: cygwin
On Tue, Mar 12, 2002 at 10:08:05AM -0800, Stephen Weeks wrote:
>
> > However, before talking further about this I'd like you to run your
> > below test application again but this time under strace. Could
> > you please send the strace output to this list (it's not that long)?
>
> Here is the strace output.
Thanks for the strace.
Boy, that's a problem... the mmap() succeeds, the following printf
SEGV's as a follow up error. I asked you for the strace to be
really sure. The same happens on my box. It's a surprising
error raised by a Win32 call. Currently I don't know how to easily
avoid that. Hmm.
Corinna
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Corinna Vinschen Please, send mails regarding Cygwin to
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-12 2:23 ` Corinna Vinschen
@ 2002-03-12 11:17 ` Stephen Weeks
2002-03-12 12:44 ` Corinna Vinschen
0 siblings, 1 reply; 14+ messages in thread
From: Stephen Weeks @ 2002-03-12 11:17 UTC (permalink / raw)
To: cygwin
> However, before talking further about this I'd like you to run your
> below test application again but this time under strace. Could
> you please send the strace output to this list (it's not that long)?
Here is the strace output.
**********************************************
Program name: c:\mmap.exe (159)
App version: 1003.10, api: 0.51
DLL version: 1003.10, api: 0.51
DLL build: 2002-02-25 11:14
OS version: Windows NT-4.0
Date/Time: 2002-03-12 10:02:03
**********************************************
7637 19265 [main] mmap 159 environ_init: 0xA010420: !C:=C:\WINNT\Profiles\sweeks\Desktop
2224 21489 [main] mmap 159 environ_init: 0xA010450: !Z:=Z:\cygwin\bin
2542 24031 [main] mmap 159 environ_init: 0xA010468: COMPUTERNAME=WINDOZE
2498 26529 [main] mmap 159 environ_init: 0xA010488: COMSPEC=C:\WINNT\system32\cmd.exe
2338 28867 [main] mmap 159 parse_options: binmode 65536
2466 31333 [main] mmap 159 parse_options: ntsec 1
2297 33630 [main] mmap 159 parse_options: tty 1001
2517 36147 [main] mmap 159 parse_options: returning
1180 37327 [main] mmap 159 environ_init: 0xA0104B0: CYGWIN=binmode ntsec tty
2166 39493 [main] mmap 159 getwinenv: can't set native for HOME= since no environ yet
2358 41851 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\home\sweeks, no-keep-rel, no-add-slash)
1392 43243 [main] mmap 159 normalize_win32_path: z:\cygwin\home\sweeks = normalize_win32_path (z:\cygwin\home\sweeks)
2272 45515 [main] mmap 159 mount_info::conv_to_posix_path: /home/sweeks = conv_to_posix_path (z:\cygwin\home\sweeks)
3429 48944 [main] mmap 159 win_env::add_cache: posix /home/sweeks
1132 50076 [main] mmap 159 win_env::add_cache: native HOME=z:\cygwin\home\sweeks
1137 51213 [main] mmap 159 posify: env var converted to HOME=/home/sweeks
2183 53396 [main] mmap 159 environ_init: 0xA010520: HOME=/home/sweeks
2708 56104 [main] mmap 159 environ_init: 0xA010500: HOMEDRIVE=C:
2249 58353 [main] mmap 159 environ_init: 0xA010668: HOMEPATH=\
2184 60537 [main] mmap 159 environ_init: 0xA010678: LOGONSERVER=\\WINDOZE
2133 62670 [main] mmap 159 environ_init: 0xA010698: MAKE_MODE=unix
2164 64834 [main] mmap 159 environ_init: 0xA0106B0: MANPATH=:/usr/ssl/man
2669 67503 [main] mmap 159 environ_init: 0xA0106D0: NUMBER_OF_PROCESSORS=1
2156 69659 [main] mmap 159 environ_init: 0xA0106F0: OLDPWD=/home/sweeks
2169 71828 [main] mmap 159 environ_init: 0xA010708: OS2LIBPATH=C:\WINNT\system32\os2\dll;
2164 73992 [main] mmap 159 environ_init: 0xA010738: OS=Windows_NT
3044 77036 [main] mmap 159 getwinenv: can't set native for PATH= since no environ yet
2261 79297 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\home\sweeks\bin, keep-rel, no-add-slash)
1177 80474 [main] mmap 159 normalize_win32_path: z:\cygwin\home\sweeks\bin = normalize_win32_path (z:\cygwin\home\sweeks\bin)
1156 81630 [main] mmap 159 mount_info::conv_to_posix_path: /home/sweeks/bin = conv_to_posix_path (z:\cygwin\home\sweeks\bin)
1115 82745 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\sbin, keep-rel, no-add-slash)
1134 83879 [main] mmap 159 normalize_win32_path: z:\cygwin\sbin = normalize_win32_path (z:\cygwin\sbin)
1131 85010 [main] mmap 159 mount_info::conv_to_posix_path: /sbin = conv_to_posix_path (z:\cygwin\sbin)
1606 86616 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\usr\sbin, keep-rel, no-add-slash)
1192 87808 [main] mmap 159 normalize_win32_path: z:\cygwin\usr\sbin = normalize_win32_path (z:\cygwin\usr\sbin)
1142 88950 [main] mmap 159 mount_info::conv_to_posix_path: /usr/sbin = conv_to_posix_path (z:\cygwin\usr\sbin)
1104 90054 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\usr\local\bin, keep-rel, no-add-slash)
1134 91188 [main] mmap 159 normalize_win32_path: z:\cygwin\usr\local\bin = normalize_win32_path (z:\cygwin\usr\local\bin)
1130 92318 [main] mmap 159 mount_info::conv_to_posix_path: /usr/local/bin = conv_to_posix_path (z:\cygwin\usr\local\bin)
1134 93452 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\bin, keep-rel, no-add-slash)
1396 94848 [main] mmap 159 normalize_win32_path: z:\cygwin\bin = normalize_win32_path (z:\cygwin\bin)
1618 96466 [main] mmap 159 mount_info::conv_to_posix_path: /usr/bin = conv_to_posix_path (z:\cygwin\bin)
1193 97659 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (z:\cygwin\bin, keep-rel, no-add-slash)
1145 98804 [main] mmap 159 normalize_win32_path: z:\cygwin\bin = normalize_win32_path (z:\cygwin\bin)
1139 99943 [main] mmap 159 mount_info::conv_to_posix_path: /usr/bin = conv_to_posix_path (z:\cygwin\bin)
1132 101075 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (c:\WINNT\system32, keep-rel, no-add-slash)
1133 102208 [main] mmap 159 normalize_win32_path: c:\WINNT\system32 = normalize_win32_path (c:\WINNT\system32)
1134 103342 [main] mmap 159 mount_info::conv_to_posix_path: /cygdrive/c/WINNT/system32 = conv_to_posix_path (c:\WINNT\system32)
1109 104451 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (c:\WINNT, keep-rel, no-add-slash)
1384 105835 [main] mmap 159 normalize_win32_path: c:\WINNT = normalize_win32_path (c:\WINNT)
1330 107165 [main] mmap 159 mount_info::conv_to_posix_path: /cygdrive/c/WINNT = conv_to_posix_path (c:\WINNT)
3235 110400 [main] mmap 159 win_env::add_cache: posix /home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT
1085 111485 [main] mmap 159 win_env::add_cache: native PATH=z:\cygwin\home\sweeks\bin;z:\cygwin\sbin;z:\cygwin\usr\sbin;z:\cygwin\usr\local\bin;z:\cygwin\bin;z:\cygwin\bin;c:\WINNT\system32;c:\WINNT
1126 112611 [main] mmap 159 posify: env var converted to PATH=/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT
2161 114772 [main] mmap 159 environ_init: 0xA0107E8: PATH=/home/sweeks/bin:/sbin:/usr/sbin:/usr/local/bin:/usr/bin:/usr/bin:/cygdrive/c/WINNT/system32:/cygdrive/c/WINNT
2443 117215 [main] mmap 159 environ_init: 0xA010750: PATHEXT=.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH
2319 119534 [main] mmap 159 environ_init: 0xA010790: PROCESSOR_ARCHITECTURE=x86
2176 121710 [main] mmap 159 environ_init: 0xA010A30: PROCESSOR_IDENTIFIER=x86 Family 15 Model 1 Stepping 2, GenuineIntel
2172 123882 [main] mmap 159 environ_init: 0xA0107B0: PROCESSOR_LEVEL=15
2382 126264 [main] mmap 159 environ_init: 0xA0107C8: PROCESSOR_REVISION=0102
2401 128665 [main] mmap 159 environ_init: 0xA010A78: PROMPT=$P$G
2196 130861 [main] mmap 159 environ_init: 0xA010A88: PS1=\W%
2124 132985 [main] mmap 159 environ_init: 0xA010A98: PWD=/cygdrive/c
2411 135396 [main] mmap 159 environ_init: 0xA010AB0: SHLVL=1
2215 137611 [main] mmap 159 environ_init: 0xA010AC0: SYSTEMDRIVE=C:
2561 140172 [main] mmap 159 environ_init: 0xA010AD8: SYSTEMROOT=C:\WINNT
2177 142349 [main] mmap 159 getwinenv: can't set native for TEMP= since no environ yet
2170 144519 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (c:\TEMP, no-keep-rel, no-add-slash)
1346 145865 [main] mmap 159 normalize_win32_path: c:\TEMP = normalize_win32_path (c:\TEMP)
1178 147043 [main] mmap 159 mount_info::conv_to_posix_path: /cygdrive/c/TEMP = conv_to_posix_path (c:\TEMP)
3395 150438 [main] mmap 159 win_env::add_cache: posix /cygdrive/c/TEMP
1139 151577 [main] mmap 159 win_env::add_cache: native TEMP=c:\TEMP
1093 152670 [main] mmap 159 posify: env var converted to TEMP=/cygdrive/c/TEMP
2157 154827 [main] mmap 159 environ_init: 0xA010B08: TEMP=/cygdrive/c/TEMP
2439 157266 [main] mmap 159 environ_init: 0xA010AF0: TERM=cygwin
2423 159689 [main] mmap 159 getwinenv: can't set native for TMP= since no environ yet
2216 161905 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (c:\TEMP, no-keep-rel, no-add-slash)
1125 163030 [main] mmap 159 normalize_win32_path: c:\TEMP = normalize_win32_path (c:\TEMP)
1137 164167 [main] mmap 159 mount_info::conv_to_posix_path: /cygdrive/c/TEMP = conv_to_posix_path (c:\TEMP)
3457 167624 [main] mmap 159 win_env::add_cache: posix /cygdrive/c/TEMP
1391 169015 [main] mmap 159 win_env::add_cache: native TMP=c:\TEMP
1326 170341 [main] mmap 159 posify: env var converted to TMP=/cygdrive/c/TEMP
2172 172513 [main] mmap 159 environ_init: 0xA010C58: TMP=/cygdrive/c/TEMP
2127 174640 [main] mmap 159 environ_init: 0xA010C48: USER=sweeks
2458 177098 [main] mmap 159 environ_init: 0xA010D90: USERDOMAIN=WINDOZE
2173 179271 [main] mmap 159 environ_init: 0xA010DA8: USERNAME=sweeks
2307 181578 [main] mmap 159 environ_init: 0xA010DC0: USERPROFILE=C:\WINNT\Profiles\sweeks
2167 183745 [main] mmap 159 environ_init: 0xA010DF0: WINDIR=C:\WINNT
2514 186259 [main] mmap 159 environ_init: 0xA010E08: _=/usr/bin/strace
4850 191109 [main] mmap 159 pinfo_init: pid 159, pgid 159
1952 193061 [main] mmap 159 dtable::extend: size 32, fds 0x61560128
4276 197337 [main] mmap 159 internal_getlogin: GetUserName() = sweeks
1569 198906 [main] mmap 159 internal_getlogin: User: sweeks, Domain: WINDOZE, Logon Server: WINDOZE
1162 200068 [main] mmap 159 internal_getlogin: Domain: WINDOZE, Logon Server: WINDOZE, Windows Username: sweeks
1746 201814 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (0)
1341 203155 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: fd not open
1270 204425 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (1)
1390 205815 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: fd not open
1142 206957 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (2)
1131 208088 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: fd not open
1221 209309 [main] mmap 159 _open: open (/etc/passwd, 0x20000)
1749 211058 [main] mmap 159 normalize_posix_path: src /etc/passwd
1498 212556 [main] mmap 159 normalize_posix_path: /etc/passwd = normalize_posix_path (/etc/passwd)
1267 213823 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/etc/passwd)
1153 214976 [main] mmap 159 mount_info::conv_to_win32_path: src_path /etc/passwd, dst z:\cygwin\etc\passwd, flags 0xA, rc 0
5890 220866 [main] mmap 159 symlink_info::check: not a symlink
1752 222618 [main] mmap 159 symlink_info::check: 0 = symlink.check (z:\cygwin\etc\passwd, 0x22E7A0) (0xA)
1224 223842 [main] mmap 159 path_conv::check: root_dir(z:\), this->path(z:\cygwin\etc\passwd), set_has_acls(8)
1271 225113 [main] mmap 159 dtable::build_fhandler: fd 3, fh 0x615602C8
1682 226795 [main] mmap 159 fhandler_base::open: (z:\cygwin\etc\passwd, 0x20000)
3198 229993 [main] mmap 159 fhandler_base::open: 0x48 = CreateFileA (z:\cygwin\etc\passwd, 0x80000000, 0x7, 0x22EBE0, 0x3, 0x80, 0)
1303 231296 [main] mmap 159 fhandler_base::open: filemode set to text
1468 232764 [main] mmap 159 fhandler_base::open: 1 = fhandler_base::open (z:\cygwin\etc\passwd, 0x20000)
1325 234089 [main] mmap 159 fhandler_disk_file::open: 1 = fhandler_disk_file::open (z:\cygwin\etc\passwd, 0x20000)
1180 235269 [main] mmap 159 _open: 3 = open (/etc/passwd, 0x20000)
1165 236434 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1297 237731 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
4917 242648 [main] mmap 159 fhandler_disk_file::fstat_helper: 1 = GetFileInformationByHandle (z:\cygwin\etc\passwd, 72)
1625 244273 [main] mmap 159 get_nt_attribute: file: z:\cygwin\etc\passwd
1965 246238 [main] mmap 159 read_sd: file = z:\cygwin\etc\passwd
11424 257662 [main] mmap 159 read_sd: file = z:\cygwin\etc\passwd: len=176
1588 259250 [main] mmap 159 _open: open (/etc/group, 0x20000)
1286 260536 [main] mmap 159 normalize_posix_path: src /etc/group
1414 261950 [main] mmap 159 normalize_posix_path: /etc/group = normalize_posix_path (/etc/group)
1102 263052 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/etc/group)
1299 264351 [main] mmap 159 mount_info::conv_to_win32_path: src_path /etc/group, dst z:\cygwin\etc\group, flags 0xA, rc 0
4618 268969 [main] mmap 159 symlink_info::check: not a symlink
1310 270279 [main] mmap 159 symlink_info::check: 0 = symlink.check (z:\cygwin\etc\group, 0x22CBC0) (0xA)
1384 271663 [main] mmap 159 path_conv::check: root_dir(z:\), this->path(z:\cygwin\etc\group), set_has_acls(8)
1293 272956 [main] mmap 159 dtable::build_fhandler: fd 4, fh 0x615603C0
1516 274472 [main] mmap 159 fhandler_base::open: (z:\cygwin\etc\group, 0x20000)
2781 277253 [main] mmap 159 fhandler_base::open: 0x70 = CreateFileA (z:\cygwin\etc\group, 0x80000000, 0x7, 0x22D000, 0x3, 0x80, 0)
1308 278561 [main] mmap 159 fhandler_base::open: filemode set to text
1263 279824 [main] mmap 159 fhandler_base::open: 1 = fhandler_base::open (z:\cygwin\etc\group, 0x20000)
1059 280883 [main] mmap 159 fhandler_disk_file::open: 1 = fhandler_disk_file::open (z:\cygwin\etc\group, 0x20000)
1050 281933 [main] mmap 159 _open: 4 = open (/etc/group, 0x20000)
1079 283012 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1054 284066 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
5081 289147 [main] mmap 159 fhandler_disk_file::fstat_helper: 1 = GetFileInformationByHandle (z:\cygwin\etc\group, 112)
1355 290502 [main] mmap 159 get_nt_attribute: file: z:\cygwin\etc\group
1205 291707 [main] mmap 159 read_sd: file = z:\cygwin\etc\group
7710 299417 [main] mmap 159 read_sd: file = z:\cygwin\etc\group: len=176
1704 301121 [main] mmap 159 get_nt_attribute: file: z:\cygwin\etc\group 1E4, uid 2000, gid 2001
1344 302465 [main] mmap 159 fhandler_disk_file::fstat_helper: 0 = fstat (, 0x22D380) st_atime=3C8E42DC st_size=277, st_mode=0x81E4, st_ino=325591779, sizeof=64
1276 303741 [main] mmap 159 _fstat: 0 = fstat (4, 0x22D380)
1365 305106 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1699 306805 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: get_*_binary
1282 308087 [main] mmap 159 setmode_helper: setmode: file was cle now raw
1175 309262 [main] mmap 159 setmode: setmode (4</etc/group>, binary) returns text
1232 310494 [main] mmap 159 _read: read (4, 0xA010F90, 1024) blocking, sigcatchers 0
1264 311758 [main] mmap 159 _read: non-interruptible read
2607 314365 [main] mmap 159 fhandler_base::read: returning 277 chars, binary mode
1317 315682 [main] mmap 159 _read: 277 = read (4, 0xA010F90, 1024), errno 0
1732 317414 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1231 318645 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1087 319732 [main] mmap 159 setmode_helper: setmode: file was raw now cle
1058 320790 [main] mmap 159 setmode: setmode (4</etc/group>, text) returns binary
21778 342568 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1142 343710 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: get_*_binary
1131 344841 [main] mmap 159 setmode_helper: setmode: file was cle now raw
1450 346291 [main] mmap 159 setmode: setmode (4</etc/group>, binary) returns text
1375 347666 [main] mmap 159 _read: read (4, 0xA010F90, 1024) blocking, sigcatchers 0
1201 348867 [main] mmap 159 _read: non-interruptible read
2313 351180 [main] mmap 159 _read: 0 = read (4, 0xA010F90, 1024), errno 0
1359 352539 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (4)
1180 353719 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1061 354780 [main] mmap 159 setmode_helper: setmode: file was raw now cle
1430 356210 [main] mmap 159 setmode: setmode (4</etc/group>, text) returns binary
2452 358662 [main] mmap 159 _close: close (4)
1399 360061 [main] mmap 159 fhandler_base::close: closing '/etc/group' handle 0x70
2605 362666 [main] mmap 159 _close: 0 = close (4)
1544 364210 [main] mmap 159 normalize_posix_path: src /etc
1152 365362 [main] mmap 159 normalize_posix_path: /etc = normalize_posix_path (/etc)
1157 366519 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/etc)
1369 367888 [main] mmap 159 mount_info::conv_to_win32_path: src_path /etc, dst z:\cygwin\etc, flags 0xA, rc 0
4415 372303 [main] mmap 159 symlink_info::check: not a symlink
1330 373633 [main] mmap 159 symlink_info::check: 0 = symlink.check (z:\cygwin\etc, 0x22CFF0) (0xA)
1155 374788 [main] mmap 159 path_conv::check: root_dir(z:\), this->path(z:\cygwin\etc), set_has_acls(8)
4098 378886 [main] mmap 159 get_nt_attribute: file: z:\cygwin\etc\passwd 1C0, uid 2000, gid 2001
1460 380346 [main] mmap 159 fhandler_disk_file::fstat_helper: 0 = fstat (, 0x22EF60) st_atime=3C8E42DC st_size=482, st_mode=0x81C0, st_ino=387896088, sizeof=64
1231 381577 [main] mmap 159 _fstat: 0 = fstat (3, 0x22EF60)
1164 382741 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1140 383881 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: get_*_binary
1123 385004 [main] mmap 159 setmode_helper: setmode: file was cle now raw
1465 386469 [main] mmap 159 setmode: setmode (3</etc/passwd>, binary) returns text
1217 387686 [main] mmap 159 _read: read (3, 0xA010F90, 1024) blocking, sigcatchers 0
1170 388856 [main] mmap 159 _read: non-interruptible read
40291 429147 [main] mmap 159 fhandler_base::read: returning 482 chars, binary mode
1694 430841 [main] mmap 159 _read: 482 = read (3, 0xA010F90, 1024), errno 0
1063 431904 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1276 433180 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1180 434360 [main] mmap 159 setmode_helper: setmode: file was raw now cle
1684 436044 [main] mmap 159 setmode: setmode (3</etc/passwd>, text) returns binary
8536 444580 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1579 446159 [main] mmap 159 _cygwin_istext_for_stdio: _cifs: get_*_binary
1189 447348 [main] mmap 159 setmode_helper: setmode: file was cle now raw
1141 448489 [main] mmap 159 setmode: setmode (3</etc/passwd>, binary) returns text
1199 449688 [main] mmap 159 _read: read (3, 0xA010F90, 1024) blocking, sigcatchers 0
1161 450849 [main] mmap 159 _read: non-interruptible read
2266 453115 [main] mmap 159 _read: 0 = read (3, 0xA010F90, 1024), errno 0
1342 454457 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio (3)
1236 455693 [main] mmap 159 _cygwin_istext_for_stdio: _cygwin_istext_for_stdio says yes
1498 457191 [main] mmap 159 setmode_helper: setmode: file was raw now cle
1081 458272 [main] mmap 159 setmode: setmode (3</etc/passwd>, text) returns binary
2352 460624 [main] mmap 159 _close: close (3)
1221 461845 [main] mmap 159 fhandler_base::close: closing '/etc/passwd' handle 0x48
2374 464219 [main] mmap 159 _close: 0 = close (3)
4367 468586 [main] mmap 159 internal_getlogin: Cygwins Username: sweeks
3149 471735 [main] mmap 159 sigproc_init: process/signal handling enabled(1001)
5009 476744 [sig] mmap 159 wait_sig: sigcatch_nonmain 0x114, sigcatch_main 0x118
1623 478367 [sig] mmap 159 wait_sig: Ready. dwProcessid 159
124821 603188 [main] mmap 159 tty_list::allocate_tty: console 40076 already associated with tty0
3055 606243 [main] mmap 159 build_argv: argv[0] = './mmap'
1250 607493 [main] mmap 159 build_argv: argc 1
15982 623475 [main] mmap 159 normalize_posix_path: src /dev/piper
1225 624700 [main] mmap 159 normalize_posix_path: /dev/piper = normalize_posix_path (/dev/piper)
1123 625823 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/dev/piper)
1223 627046 [main] mmap 159 mount_info::conv_to_win32_path: src_path /dev/piper, dst \dev\piper, flags 0x2, rc 0
1400 628446 [main] mmap 159 dtable::build_fhandler: fd 0, fh 0x615602C8
1162 629608 [main] mmap 159 fhandler_base::init: created new fhandler_base for handle 0xF8
1053 630661 [main] mmap 159 dtable::init_std_file_from_handle: fd 0, handle 0xF8
2230 632891 [main] mmap 159 normalize_posix_path: src unknown disk file
1711 634602 [main] mmap 159 mount_info::conv_to_posix_path: conv_to_posix_path (c:\, no-keep-rel, no-add-slash)
1109 635711 [main] mmap 159 normalize_win32_path: c:\ = normalize_win32_path (c:\)
1273 636984 [main] mmap 159 mount_info::conv_to_posix_path: /cygdrive/c = conv_to_posix_path (c:\)
1394 638378 [main] mmap 159 cwdstuff::get: posix /cygdrive/c
1161 639539 [main] mmap 159 cwdstuff::get: (/cygdrive/c) = cwdstuff::get (0x22F950, 260, 1, 0), errno 0
1079 640618 [main] mmap 159 normalize_posix_path: /cygdrive/c/unknown disk file = normalize_posix_path (unknown disk file)
1248 641866 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c/unknown disk file)
1191 643057 [main] mmap 159 mount_info::cygdrive_win32_path: src '/cygdrive/c/unknown disk file', dst 'c:\unknown disk file'
1361 644418 [main] mmap 159 mount_info::conv_to_win32_path: src_path /cygdrive/c/unknown disk file, dst c:\unknown disk file, flags 0x22, rc 0
2421 646839 [main] mmap 159 symlink_info::check: GetFileAttributes (c:\unknown disk file) failed
1342 648181 [main] mmap 159 geterrno_from_win_error: windows error 2 == errno 2
1402 649583 [main] mmap 159 symlink_info::check: GetFileAttributes (c:\unknown disk file.lnk) failed
1261 650844 [main] mmap 159 geterrno_from_win_error: windows error 2 == errno 2
1191 652035 [main] mmap 159 symlink_info::check: 0 = symlink.check (c:\unknown disk file, 0x22F610) (0x22)
1189 653224 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c)
1530 654754 [main] mmap 159 mount_info::cygdrive_win32_path: src '/cygdrive/c', dst 'c:\'
1495 656249 [main] mmap 159 mount_info::conv_to_win32_path: src_path /cygdrive/c, dst c:\, flags 0x22, rc 0
1440 657689 [main] mmap 159 symlink_info::check: not a symlink
1254 658943 [main] mmap 159 symlink_info::check: 0 = symlink.check (c:\, 0x22F610) (0x22)
1192 660135 [main] mmap 159 path_conv::check: root_dir(c:\), this->path(c:\unknown disk file), set_has_acls(8)
1211 661346 [main] mmap 159 dtable::build_fhandler: fd 1, fh 0x615603C0
1205 662551 [main] mmap 159 fhandler_base::init: created new fhandler_base for handle 0x3C
1186 663737 [main] mmap 159 dtable::init_std_file_from_handle: fd 1, handle 0x3C
2155 665892 [main] mmap 159 normalize_posix_path: src unknown disk file
1549 667441 [main] mmap 159 cwdstuff::get: posix /cygdrive/c
1254 668695 [main] mmap 159 cwdstuff::get: (/cygdrive/c) = cwdstuff::get (0x22F940, 260, 1, 0), errno 0
1191 669886 [main] mmap 159 normalize_posix_path: /cygdrive/c/unknown disk file = normalize_posix_path (unknown disk file)
1186 671072 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c/unknown disk file)
1180 672252 [main] mmap 159 mount_info::cygdrive_win32_path: src '/cygdrive/c/unknown disk file', dst 'c:\unknown disk file'
1205 673457 [main] mmap 159 mount_info::conv_to_win32_path: src_path /cygdrive/c/unknown disk file, dst c:\unknown disk file, flags 0x22, rc 0
1832 675289 [main] mmap 159 symlink_info::check: GetFileAttributes (c:\unknown disk file) failed
2141 677430 [main] mmap 159 geterrno_from_win_error: windows error 2 == errno 2
1476 678906 [main] mmap 159 symlink_info::check: GetFileAttributes (c:\unknown disk file.lnk) failed
1255 680161 [main] mmap 159 geterrno_from_win_error: windows error 2 == errno 2
1187 681348 [main] mmap 159 symlink_info::check: 0 = symlink.check (c:\unknown disk file, 0x22F600) (0x22)
1256 682604 [main] mmap 159 mount_info::conv_to_win32_path: conv_to_win32_path (/cygdrive/c)
1192 683796 [main] mmap 159 mount_info::cygdrive_win32_path: src '/cygdrive/c', dst 'c:\'
1184 684980 [main] mmap 159 mount_info::conv_to_win32_path: src_path /cygdrive/c, dst c:\, flags 0x22, rc 0
1821 686801 [main] mmap 159 symlink_info::check: not a symlink
1248 688049 [main] mmap 159 symlink_info::check: 0 = symlink.check (c:\, 0x22F600) (0x22)
1195 689244 [main] mmap 159 path_conv::check: root_dir(c:\), this->path(c:\unknown disk file), set_has_acls(8)
1235 690479 [main] mmap 159 dtable::build_fhandler: fd 2, fh 0x615606E8
1195 691674 [main] mmap 159 fhandler_base::init: created new fhandler_base for handle 0x54
1436 693110 [main] mmap 159 dtable::init_std_file_from_handle: fd 2, handle 0x54
1267 694377 [main] mmap 159 dll_list::init: here
1193 695570 [main] mmap 159 dll_crt0_1: user_data->main 0x4011F0
1919 697489 [main] mmap 159 sig_send: pid 159, signal -2, its_me 1
1493 698982 [sig] mmap 159 wait_sig: awake
1175 700157 [sig] mmap 159 wait_sig: processing signal -2
1159 701316 [sig] mmap 159 wait_sig: set main thread completion event
1130 702446 [sig] mmap 159 wait_sig: looping
1148 703594 [main] mmap 159 sig_send: Waiting for thiscomplete 0x124
1186 704780 [main] mmap 159 sig_send: returning 0 from sending signal -2
2649 707429 [main] mmap 159 _write: write (2, 0x22F728, 142)
1351 708780 [main] mmap 159 fhandler_base::write: binary write
TotalPhys: 209113088
AvailPhys: 166297600
TotalPageFile: 309587968
AvailPageFile: 274980864
TotalVirtual: 2147352576
AvailVirtual: 1589846016
1360 710140 [main] mmap 159 fhandler_base::write: 142 = write (0x22F728, 142)
1223 711363 [main] mmap 159 _write: 142 = write (2, 0x22F728, 142)
1201 712564 [main] mmap 159 _write: write (2, 0x22F718, 38)
1193 713757 [main] mmap 159 fhandler_base::write: binary write
attempting to mmap 100000000 bytes ... 1273 715030 [main] mmap 159 fhandler_base::write: 38 = write (0x22F718, 38)
2401 717431 [main] mmap 159 _write: 38 = write (2, 0x22F718, 38)
1668 719099 [main] mmap 159 mmap: addr 0, len 100000000, prot 3, flags 22, fd -1, off 0
5487 724586 [main] mmap 159 fhandler_disk_file::mmap: 2A230000 = MapViewOfFileEx (h:188, access:1, 0, off:0, len:100007936, addr:0)
26042 750628 [main] mmap 159 mmap: 2A230000 = mmap() succeeded
1466 752094 [main] mmap 159 _write: write (2, 0x22F718, 12)
1212 753306 [main] mmap 159 fhandler_base::write: binary write
zeroing ... 1265 754571 [main] mmap 159 fhandler_base::write: 12 = write (0x22F718, 12)
1156 755727 [main] mmap 159 _write: 12 = write (2, 0x22F718, 12)
1158576 1914303 [main] mmap 159 _write: write (2, 0x22F718, 14)
7977 1922280 [main] mmap 159 fhandler_base::write: binary write
unmapping ... 2872 1925152 [main] mmap 159 fhandler_base::write: 14 = write (0x22F718, 14)
1670 1926822 [main] mmap 159 _write: 14 = write (2, 0x22F718, 14)
2030 1928852 [main] mmap 159 munmap: munmap (addr 2A230000, len 100000000)
133715 2062567 [main] mmap 159 munmap: 0 = munmap(): 2A230000
2700 2065267 [main] mmap 159 _write: write (2, 0x22F718, 10)
1485 2066752 [main] mmap 159 fhandler_base::write: binary write
succeeded
2138 2068890 [main] mmap 159 fhandler_base::write: 10 = write (0x22F718, 10)
1509 2070399 [main] mmap 159 _write: 10 = write (2, 0x22F718, 10)
1459 2071858 [main] mmap 159 _write: write (2, 0x22F718, 38)
1266 2073124 [main] mmap 159 fhandler_base::write: binary write
attempting to mmap 130000000 bytes ... 1249 2074373 [main] mmap 159 fhandler_base::write: 38 = write (0x22F718, 38)
1316 2075689 [main] mmap 159 _write: 38 = write (2, 0x22F718, 38)
1302 2076991 [main] mmap 159 mmap: addr 0, len 130000000, prot 3, flags 22, fd -1, off 0
2949 2079940 [main] mmap 159 fhandler_disk_file::mmap: 2A230000 = MapViewOfFileEx (h:190, access:1, 0, off:0, len:130023424, addr:0)
7425 2087365 [main] mmap 159 mmap_record::map_map: -1 = map_map (): Win32 error 1455
1830 2089195 [main] mmap 159 mmap: 2A230000 = mmap() succeeded
1209 2090404 [main] mmap 159 _write: write (2, 0x22F718, 12)
1343 2091747 [main] mmap 159 fhandler_base::write: binary write
zeroing ... 1266 2093013 [main] mmap 159 fhandler_base::write: 12 = write (0x22F718, 12)
1159 2094172 [main] mmap 159 _write: 12 = write (2, 0x22F718, 12)
2744 2096916 [main] mmap 159 handle_exceptions: In cygwin_except_handler exc 0xC0000005 at 0x6108BEDF sp 0x22FE20
1585 2098501 [main] mmap 159 handle_exceptions: In cygwin_except_handler sig = 11 at 0x6108BEDF
1210 2099711 [main] mmap 159 handle_exceptions: In cygwin_except_handler calling 0x0
2100862 [main] mmap 159 handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
1151 2100862 [main] mmap 159 handle_exceptions: Exception: STATUS_ACCESS_VIOLATION
24822 2125684 [main] mmap 159 try_to_debug: debugger_command ''
2137557 [main] mmap 159 open_stackdumpfile: Dumping stack trace to mmap.exe.stackdump
11873 2137557 [main] mmap 159 open_stackdumpfile: Dumping stack trace to mmap.exe.stackdump
202590 2340147 [main] mmap 159 signal_exit: about to call do_exit (18B00)
1278 2341425 [main] mmap 159 do_exit: do_exit (101120)
1556 2342981 [main] mmap 159 void: 0x0 = signal (20, 0x1)
1278 2344259 [main] mmap 159 void: 0x0 = signal (1, 0x1)
1218 2345477 [main] mmap 159 void: 0x0 = signal (2, 0x1)
1216 2346693 [main] mmap 159 void: 0x0 = signal (3, 0x1)
1330 2348023 [main] mmap 159 fhandler_base::close: closing '/dev/piper' handle 0xF8
2138 2350161 [main] mmap 159 fhandler_base::close: closing 'unknown disk file' handle 0x3C
1595 2351756 [main] mmap 159 fhandler_base::close: closing 'unknown disk file' handle 0x54
1658 2353414 [main] mmap 159 proc_terminate: nchildren 0, nzombies 0
1282 2354696 [main] mmap 159 proc_terminate: leaving
1211 2355907 [main] mmap 159 sigproc_terminate: entering
1215 2357122 [main] mmap 159 sigproc_terminate: done
1861 2358983 [main] mmap 159 do_exit: 159 == sid 159, send SIGHUP to children
3114 2362097 [main] mmap 159 __to_clock_t: dwHighDateTime 0, dwLowDateTime 11917136
1443 2363540 [main] mmap 159 __to_clock_t: total 00000000 000004A7
1240 2364780 [main] mmap 159 __to_clock_t: dwHighDateTime 0, dwLowDateTime 7510800
1222 2366002 [main] mmap 159 __to_clock_t: total 00000000 000002EF
71773 2437775 [main] mmap 159 _pinfo::exit: Calling ExitProcess 101120
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^ permalink raw reply [flat|nested] 14+ messages in thread
* Re: mmap of large amount returns invalid pointer
2002-03-11 21:08 Stephen Weeks
@ 2002-03-12 2:23 ` Corinna Vinschen
2002-03-12 11:17 ` Stephen Weeks
0 siblings, 1 reply; 14+ messages in thread
From: Corinna Vinschen @ 2002-03-12 2:23 UTC (permalink / raw)
To: cygwin
On Mon, Mar 11, 2002 at 08:38:34PM -0800, Stephen Weeks wrote:
>
> I am experience a problem where mmap does not return -1, but the
> pointer returned is not to a valid chunk of memory. I have included a
> sample program, the output that I see, and the output of cygcheck
> below.
>
> I have tried this program both with and withouth the registry setting
> HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\heap_chunk_in_mb
> which, when set, I have set to 512Mb. BTW, I notice that this
> registry value isn't checked for by cygcheck. That would seem
> useful.
>
> Even if I got the registry setting wrong, I would expect mmap to
> return -1 if it is unable to get the space.
This registry setting has absolutely no effect on mmap(). It affects
the application heap but the mmap memory is taken from the shared memory
area of the system which isn't controlled by Cygwin but only by Win32
itself.
I ran your below test application with slightly different values in
the `try' calls to reflect the size of the page file in my box.
However, before talking further about this I'd like you to run your
below test application again but this time under strace. Could
you please send the strace output to this list (it's not that long)?
Thanks in advance,
Corinna
> --------------------------------------------------------------------------------
>
> #include <stdio.h>
> #include <sys/mman.h>
> #include <unistd.h>
> #include <windows.h>
>
> void try (uint length) {
> void *p;
>
> fprintf(stderr, "attempting to mmap %u bytes ...", length);
> p = mmap (NULL, length,
> PROT_READ | PROT_WRITE,
> MAP_PRIVATE | MAP_ANON, -1, 0);
> if ((void*)-1 == p) {
> fprintf(stderr, " out of memory\n");
> exit(0);
> }
> fprintf(stderr, "zeroing ... ");
> memset(p, 0, length);
> fprintf(stderr, "unmapping ... ");
> munmap(p, length);
> fprintf(stderr, "succeeded\n");
> length *= 2;
> }
>
> int main (int argc, char **argv) {
> MEMORYSTATUS ms;
>
> ms.dwLength = sizeof(MEMORYSTATUS);
> GlobalMemoryStatus(&ms);
> fprintf(stderr, "TotalPhys: %ld\nAvailPhys: %ld\nTotalPageFile: %ld\nAvailPageFile: %ld\nTotalVirtual: %ld\nAvailVirtual: %ld\n",
> ms.dwTotalPhys,
> ms.dwAvailPhys,
> ms.dwTotalPageFile,
> ms.dwAvailPageFile,
> ms.dwTotalVirtual,
> ms.dwAvailVirtual);
> try(100000000);
> try(130000000);
> exit(0);
> }
>
> --------------------------------------------------------------------------------
>
> TotalPhys: 209113088
> AvailPhys: 166580224
> TotalPageFile: 309587968
> AvailPageFile: 275365888
> TotalVirtual: 2147352576
> AvailVirtual: 1589841920
> attempting to mmap 100000000 bytes ...zeroing ... unmapping ... succeeded
> attempting to mmap 130000000 bytes ...zeroing ... Segmentation fault (core dumped)
>
> --------------------------------------------------------------------------------
>
> Cygwin Win95/NT Configuration Diagnostics
> Current System Time: Mon Mar 11 19:42:08 2002
>
> Windows NT Ver 4.0 Build 1381 Service Pack 6
>
> Path: z:\cygwin\home\sweeks\bin
> z:\cygwin\sbin
> z:\cygwin\usr\sbin
> z:\cygwin\usr\local\bin
> z:\cygwin\bin
> z:\cygwin\bin
> c:\WINNT\system32
> c:\WINNT
>
> SysDir: C:\WINNT\System32
> WinDir: C:\WINNT
>
> CYGWIN = `binmode ntsec tty '
> HOME = `z:\cygwin\home\sweeks'
> MAKE_MODE = `unix'
> PWD = `/cygdrive/c'
> USER = `sweeks'
>
> COMPUTERNAME = `WINDOZE'
> COMSPEC = `C:\WINNT\system32\cmd.exe'
> HOMEDRIVE = `C:'
> HOMEPATH = `\'
> LOGONSERVER = `\\WINDOZE'
> MANPATH = `:/usr/ssl/man'
> NUMBER_OF_PROCESSORS = `1'
> OLDPWD = `/home/sweeks'
> OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
> OS = `Windows_NT'
> PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
> PROCESSOR_ARCHITECTURE = `x86'
> PROCESSOR_IDENTIFIER = `x86 Family 15 Model 1 Stepping 2, GenuineIntel'
> PROCESSOR_LEVEL = `15'
> PROCESSOR_REVISION = `0102'
> PROMPT = `$P$G'
> PS1 = `\W% '
> SHLVL = `1'
> SYSTEMDRIVE = `C:'
> SYSTEMROOT = `C:\WINNT'
> TEMP = `c:\TEMP'
> TERM = `cygwin'
> TMP = `c:\TEMP'
> USERDOMAIN = `WINDOZE'
> USERNAME = `sweeks'
> USERPROFILE = `C:\WINNT\Profiles\sweeks'
> WINDIR = `C:\WINNT'
> _ = `/usr/bin/cygcheck'
>
> HKEY_CURRENT_USER\Software\Cygnus Solutions
> HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
> (default) = 0x00000200
> HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
> (default) = `/cygdrive'
> cygdrive flags = 0x00000022
> HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
> HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup
> HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0
> HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
> HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
> (default) = `C:'
> unix = `/'
> fbinary = 0x00000000
> fsilent = 0x00000000
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
> (default) = `z:\cygwin'
> flags = 0x0000000a
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
> (default) = `z:/cygwin/bin'
> flags = 0x0000000a
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
> (default) = `z:/cygwin/lib'
> flags = 0x0000000a
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20\B20.1
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\05
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\06
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\07
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\08
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\09
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0A
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0B
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0C
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0D
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0E
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0F
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\10
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\11
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\12
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\13
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\14
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\15
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\16
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\17
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\18
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\19
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1A
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1B
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1C
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1D
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32
> HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32\cygwin-B20.1
> (default) = `z:\cygwin-b20.1\cygwin-b20'
> HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Cygnus Cygwin B20
> (default) = `C:\WINNT\IsUninst.exe -fz:\cygwin-b20.1\cygwin-b20\Uninst.isu'
> DisplayName = `Cygwin B20'
>
> a: fd N/A N/A
> c: hd NTFS 2043Mb 17% CP CS UN PA FC
> d: cd N/A N/A
> y: net NTFS 71228Mb 19% PA sweeks
> z: net NTFS 71228Mb 19% PA windows
>
> . /cygdrive user binmode,noumount
> z:\cygwin / system binmode
> z:/cygwin/bin /usr/bin system binmode
> z:/cygwin/lib /usr/lib system binmode
>
> Found: z:\cygwin\bin\bash.exe
> Found: z:\cygwin\bin\cat.exe
> Not Found: cpp (good!)
> Found: z:\cygwin\bin\find.exe
> Not Found: gcc
> Not Found: gdb
> Not Found: ld
> Found: z:\cygwin\bin\ls.exe
> Not Found: make
> Found: z:\cygwin\bin\sh.exe
>
> 751k 2002/03/09 z:\cygwin\usr\sbin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
> "cygwin1.dll" v0.0 ts=2002/2/25 8:14
> Cygwin DLL version info:
> DLL version: 1.3.10
> DLL epoch: 19
> DLL bad signal mask: 19005
> DLL old termios: 5
> DLL malloc env: 28
> API major: 0
> API minor: 51
> Shared data: 3
> DLL identifier: cygwin1
> Mount registry: 2
> Cygnus registry name: Cygnus Solutions
> Cygwin registry name: Cygwin
> Program options name: Program Options
> Cygwin mount registry name: mounts v2
> Cygdrive flags: cygdrive flags
> Cygdrive prefix: cygdrive prefix
> Cygdrive default prefix:
> Build date: Mon Feb 25 11:14:34 EST 2002
> Shared id: cygwin1S3
>
> 19k 2002/02/21 z:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
> "cyggdbm.dll" v0.0 ts=2002/2/19 19:05
> 45k 2002/02/21 z:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
> "cygform5.dll" v0.0 ts=2001/4/24 22:28
> 26k 2002/02/21 z:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
> "cygmenu5.dll" v0.0 ts=2001/4/24 22:27
> 156k 2002/02/21 z:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
> "cygncurses++5.dll" v0.0 ts=2001/4/24 22:29
> 226k 2002/02/21 z:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
> "cygncurses5.dll" v0.0 ts=2001/4/24 22:17
> 15k 2002/02/21 z:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
> "cygpanel5.dll" v0.0 ts=2001/4/24 22:27
> 35k 2002/02/21 z:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
> "cygform6.dll" v0.0 ts=2002/1/8 22:03
> 20k 2002/02/21 z:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
> "cygmenu6.dll" v0.0 ts=2002/1/8 22:03
> 175k 2002/02/21 z:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
> "cygncurses++6.dll" v0.0 ts=2002/1/8 22:03
> 202k 2002/02/21 z:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
> "cygncurses6.dll" v0.0 ts=2002/1/8 22:03
> 12k 2002/02/21 z:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
> "cygpanel6.dll" v0.0 ts=2002/1/8 22:03
> 17k 2002/02/21 z:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
> "cyghistory4.dll" v0.0 ts=2001/1/6 20:34
> 108k 2002/02/21 z:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
> "cygreadline4.dll" v0.0 ts=2001/1/6 20:34
> 20k 2002/02/21 z:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
> "cyghistory5.dll" v0.0 ts=2002/1/12 17:27
> 121k 2002/02/21 z:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
> "cygreadline5.dll" v0.0 ts=2002/1/12 17:27
> 50k 2002/02/21 z:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
> "cygz.dll" v0.0 ts=2002/1/20 11:41
> 21k 2002/02/21 z:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
> "cygintl.dll" v0.0 ts=2001/6/20 10:09
> 22k 2002/03/08 z:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
> "cygintl-1.dll" v0.0 ts=2001/12/13 1:28
> 40k 2002/03/08 z:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
> "cygpcre.dll" v0.0 ts=2001/11/21 14:15
> 39k 2002/03/08 z:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
> "cygpcreposix.dll" v0.0 ts=2001/11/21 14:15
> 621k 2002/03/09 z:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
> "cygcrypto.dll" v0.0 ts=2002/1/16 1:54
> 156k 2002/03/09 z:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
> "cygssl.dll" v0.0 ts=2002/1/16 1:54
> 751k 2002/03/09 z:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
> "cygwin1.dll" v0.0 ts=2002/2/25 8:14
> Cygwin DLL version info:
> DLL version: 1.3.10
> DLL epoch: 19
> DLL bad signal mask: 19005
> DLL old termios: 5
> DLL malloc env: 28
> API major: 0
> API minor: 51
> Shared data: 3
> DLL identifier: cygwin1
> Mount registry: 2
> Cygnus registry name: Cygnus Solutions
> Cygwin registry name: Cygwin
> Program options name: Program Options
> Cygwin mount registry name: mounts v2
> Cygdrive flags: cygdrive flags
> Cygdrive prefix: cygdrive prefix
> Cygdrive default prefix:
> Build date: Mon Feb 25 11:14:34 EST 2002
> Shared id: cygwin1S3
>
>
> Cygwin Package Information
> Last downloaded files to: Z:\cygwin-packages
> Last downloaded files from: http://planetmirror.com/pub/sourceware/cygwin
>
> Package Version
> ash 20020131-1
> bash 2.05a-3
> cygrunsrv 0.95-1
> cygwin 1.3.10-1
> cygwin-src 1.3.10-1
> diff 0.0
> fileutils 4.1-1
> findutils 4.1
> gawk 3.0.4-1
> gdbm 1.8.0-4
> grep 2.5g
> groff 1.17.2-1
> gzip 1.3.2-1
> inetutils 1.3.2-17
> less 358-3
> libintl 0.10.38-3
> libintl1 0.10.40-1
> libncurses5 5.2-1
> libncurses6 5.2-8
> libreadline4 4.1-2
> libreadline5 4.2a-1
> login 1.4-3
> man 1.5g-2
> ncurses 5.2-8
> openssh 3.1p1-1
> openssl 0.9.6c-3
> pcre 3.7-1
> readline 4.2a-1
> sed 3.02-1
> sh-utils 2.0-2
> tar 1.13.19-1
> termcap 20010825-1
> terminfo 5.2-1
> textutils 2.0.21-1
> w32api 1.2-1
> which 1.5-1
> zlib 1.1.3-7
>
> Use -h to see help about each section
>
> --
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> Bug reporting: http://cygwin.com/bugs.html
> Documentation: http://cygwin.com/docs.html
> FAQ: http://cygwin.com/faq/
--
Corinna Vinschen Please, send mails regarding Cygwin to
Cygwin Developer mailto:cygwin@cygwin.com
Red Hat, Inc.
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^ permalink raw reply [flat|nested] 14+ messages in thread
* mmap of large amount returns invalid pointer
@ 2002-03-11 21:08 Stephen Weeks
2002-03-12 2:23 ` Corinna Vinschen
0 siblings, 1 reply; 14+ messages in thread
From: Stephen Weeks @ 2002-03-11 21:08 UTC (permalink / raw)
To: cygwin
I am experience a problem where mmap does not return -1, but the
pointer returned is not to a valid chunk of memory. I have included a
sample program, the output that I see, and the output of cygcheck
below.
I have tried this program both with and withouth the registry setting
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\heap_chunk_in_mb
which, when set, I have set to 512Mb. BTW, I notice that this
registry value isn't checked for by cygcheck. That would seem
useful.
Even if I got the registry setting wrong, I would expect mmap to
return -1 if it is unable to get the space.
Thanks for your help.
--------------------------------------------------------------------------------
#include <stdio.h>
#include <sys/mman.h>
#include <unistd.h>
#include <windows.h>
void try (uint length) {
void *p;
fprintf(stderr, "attempting to mmap %u bytes ...", length);
p = mmap (NULL, length,
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, -1, 0);
if ((void*)-1 == p) {
fprintf(stderr, " out of memory\n");
exit(0);
}
fprintf(stderr, "zeroing ... ");
memset(p, 0, length);
fprintf(stderr, "unmapping ... ");
munmap(p, length);
fprintf(stderr, "succeeded\n");
length *= 2;
}
int main (int argc, char **argv) {
MEMORYSTATUS ms;
ms.dwLength = sizeof(MEMORYSTATUS);
GlobalMemoryStatus(&ms);
fprintf(stderr, "TotalPhys: %ld\nAvailPhys: %ld\nTotalPageFile: %ld\nAvailPageFile: %ld\nTotalVirtual: %ld\nAvailVirtual: %ld\n",
ms.dwTotalPhys,
ms.dwAvailPhys,
ms.dwTotalPageFile,
ms.dwAvailPageFile,
ms.dwTotalVirtual,
ms.dwAvailVirtual);
try(100000000);
try(130000000);
exit(0);
}
--------------------------------------------------------------------------------
TotalPhys: 209113088
AvailPhys: 166580224
TotalPageFile: 309587968
AvailPageFile: 275365888
TotalVirtual: 2147352576
AvailVirtual: 1589841920
attempting to mmap 100000000 bytes ...zeroing ... unmapping ... succeeded
attempting to mmap 130000000 bytes ...zeroing ... Segmentation fault (core dumped)
--------------------------------------------------------------------------------
Cygwin Win95/NT Configuration Diagnostics
Current System Time: Mon Mar 11 19:42:08 2002
Windows NT Ver 4.0 Build 1381 Service Pack 6
Path: z:\cygwin\home\sweeks\bin
z:\cygwin\sbin
z:\cygwin\usr\sbin
z:\cygwin\usr\local\bin
z:\cygwin\bin
z:\cygwin\bin
c:\WINNT\system32
c:\WINNT
SysDir: C:\WINNT\System32
WinDir: C:\WINNT
CYGWIN = `binmode ntsec tty '
HOME = `z:\cygwin\home\sweeks'
MAKE_MODE = `unix'
PWD = `/cygdrive/c'
USER = `sweeks'
COMPUTERNAME = `WINDOZE'
COMSPEC = `C:\WINNT\system32\cmd.exe'
HOMEDRIVE = `C:'
HOMEPATH = `\'
LOGONSERVER = `\\WINDOZE'
MANPATH = `:/usr/ssl/man'
NUMBER_OF_PROCESSORS = `1'
OLDPWD = `/home/sweeks'
OS2LIBPATH = `C:\WINNT\system32\os2\dll;'
OS = `Windows_NT'
PATHEXT = `.COM;.EXE;.BAT;.CMD;.VBS;.VBE;.JS;.JSE;.WSF;.WSH'
PROCESSOR_ARCHITECTURE = `x86'
PROCESSOR_IDENTIFIER = `x86 Family 15 Model 1 Stepping 2, GenuineIntel'
PROCESSOR_LEVEL = `15'
PROCESSOR_REVISION = `0102'
PROMPT = `$P$G'
PS1 = `\W% '
SHLVL = `1'
SYSTEMDRIVE = `C:'
SYSTEMROOT = `C:\WINNT'
TEMP = `c:\TEMP'
TERM = `cygwin'
TMP = `c:\TEMP'
USERDOMAIN = `WINDOZE'
USERNAME = `sweeks'
USERPROFILE = `C:\WINNT\Profiles\sweeks'
WINDIR = `C:\WINNT'
_ = `/usr/bin/cygcheck'
HKEY_CURRENT_USER\Software\Cygnus Solutions
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin
(default) = 0x00000200
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\mounts v2
(default) = `/cygdrive'
cygdrive flags = 0x00000022
HKEY_CURRENT_USER\Software\Cygnus Solutions\Cygwin\Program Options
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
HKEY_CURRENT_USER\Software\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
(default) = `C:'
unix = `/'
fbinary = 0x00000000
fsilent = 0x00000000
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/
(default) = `z:\cygwin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/bin
(default) = `z:/cygwin/bin'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\mounts v2\/usr/lib
(default) = `z:/cygwin/lib'
flags = 0x0000000a
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin\Program Options
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\Cygwin B20\B20.1
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\00
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\01
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\02
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\03
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\04
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\05
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\06
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\07
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\08
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\09
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0A
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0B
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0C
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0D
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0E
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\0F
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\10
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\11
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\12
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\13
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\14
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\15
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\16
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\17
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\18
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\19
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1A
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1B
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1C
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\CYGWIN.DLL setup\b15.0\mounts\1D
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32
HKEY_LOCAL_MACHINE\SOFTWARE\Cygnus Solutions\GNUPro\i586-cygwin32\i586-cygwin32\cygwin-B20.1
(default) = `z:\cygwin-b20.1\cygwin-b20'
HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows\CurrentVersion\Uninstall\Cygnus Cygwin B20
(default) = `C:\WINNT\IsUninst.exe -fz:\cygwin-b20.1\cygwin-b20\Uninst.isu'
DisplayName = `Cygwin B20'
a: fd N/A N/A
c: hd NTFS 2043Mb 17% CP CS UN PA FC
d: cd N/A N/A
y: net NTFS 71228Mb 19% PA sweeks
z: net NTFS 71228Mb 19% PA windows
. /cygdrive user binmode,noumount
z:\cygwin / system binmode
z:/cygwin/bin /usr/bin system binmode
z:/cygwin/lib /usr/lib system binmode
Found: z:\cygwin\bin\bash.exe
Found: z:\cygwin\bin\cat.exe
Not Found: cpp (good!)
Found: z:\cygwin\bin\find.exe
Not Found: gcc
Not Found: gdb
Not Found: ld
Found: z:\cygwin\bin\ls.exe
Not Found: make
Found: z:\cygwin\bin\sh.exe
751k 2002/03/09 z:\cygwin\usr\sbin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2002/2/25 8:14
Cygwin DLL version info:
DLL version: 1.3.10
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 51
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Mon Feb 25 11:14:34 EST 2002
Shared id: cygwin1S3
19k 2002/02/21 z:\cygwin\bin\cyggdbm.dll - os=4.0 img=1.0 sys=4.0
"cyggdbm.dll" v0.0 ts=2002/2/19 19:05
45k 2002/02/21 z:\cygwin\bin\cygform5.dll - os=4.0 img=1.0 sys=4.0
"cygform5.dll" v0.0 ts=2001/4/24 22:28
26k 2002/02/21 z:\cygwin\bin\cygmenu5.dll - os=4.0 img=1.0 sys=4.0
"cygmenu5.dll" v0.0 ts=2001/4/24 22:27
156k 2002/02/21 z:\cygwin\bin\cygncurses++5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++5.dll" v0.0 ts=2001/4/24 22:29
226k 2002/02/21 z:\cygwin\bin\cygncurses5.dll - os=4.0 img=1.0 sys=4.0
"cygncurses5.dll" v0.0 ts=2001/4/24 22:17
15k 2002/02/21 z:\cygwin\bin\cygpanel5.dll - os=4.0 img=1.0 sys=4.0
"cygpanel5.dll" v0.0 ts=2001/4/24 22:27
35k 2002/02/21 z:\cygwin\bin\cygform6.dll - os=4.0 img=1.0 sys=4.0
"cygform6.dll" v0.0 ts=2002/1/8 22:03
20k 2002/02/21 z:\cygwin\bin\cygmenu6.dll - os=4.0 img=1.0 sys=4.0
"cygmenu6.dll" v0.0 ts=2002/1/8 22:03
175k 2002/02/21 z:\cygwin\bin\cygncurses++6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses++6.dll" v0.0 ts=2002/1/8 22:03
202k 2002/02/21 z:\cygwin\bin\cygncurses6.dll - os=4.0 img=1.0 sys=4.0
"cygncurses6.dll" v0.0 ts=2002/1/8 22:03
12k 2002/02/21 z:\cygwin\bin\cygpanel6.dll - os=4.0 img=1.0 sys=4.0
"cygpanel6.dll" v0.0 ts=2002/1/8 22:03
17k 2002/02/21 z:\cygwin\bin\cyghistory4.dll - os=4.0 img=1.0 sys=4.0
"cyghistory4.dll" v0.0 ts=2001/1/6 20:34
108k 2002/02/21 z:\cygwin\bin\cygreadline4.dll - os=4.0 img=1.0 sys=4.0
"cygreadline4.dll" v0.0 ts=2001/1/6 20:34
20k 2002/02/21 z:\cygwin\bin\cyghistory5.dll - os=4.0 img=1.0 sys=4.0
"cyghistory5.dll" v0.0 ts=2002/1/12 17:27
121k 2002/02/21 z:\cygwin\bin\cygreadline5.dll - os=4.0 img=1.0 sys=4.0
"cygreadline5.dll" v0.0 ts=2002/1/12 17:27
50k 2002/02/21 z:\cygwin\bin\cygz.dll - os=4.0 img=1.0 sys=4.0
"cygz.dll" v0.0 ts=2002/1/20 11:41
21k 2002/02/21 z:\cygwin\bin\cygintl.dll - os=4.0 img=1.0 sys=4.0
"cygintl.dll" v0.0 ts=2001/6/20 10:09
22k 2002/03/08 z:\cygwin\bin\cygintl-1.dll - os=4.0 img=1.0 sys=4.0
"cygintl-1.dll" v0.0 ts=2001/12/13 1:28
40k 2002/03/08 z:\cygwin\bin\cygpcre.dll - os=4.0 img=1.0 sys=4.0
"cygpcre.dll" v0.0 ts=2001/11/21 14:15
39k 2002/03/08 z:\cygwin\bin\cygpcreposix.dll - os=4.0 img=1.0 sys=4.0
"cygpcreposix.dll" v0.0 ts=2001/11/21 14:15
621k 2002/03/09 z:\cygwin\bin\cygcrypto.dll - os=4.0 img=1.0 sys=4.0
"cygcrypto.dll" v0.0 ts=2002/1/16 1:54
156k 2002/03/09 z:\cygwin\bin\cygssl.dll - os=4.0 img=1.0 sys=4.0
"cygssl.dll" v0.0 ts=2002/1/16 1:54
751k 2002/03/09 z:\cygwin\bin\cygwin1.dll - os=4.0 img=1.0 sys=4.0
"cygwin1.dll" v0.0 ts=2002/2/25 8:14
Cygwin DLL version info:
DLL version: 1.3.10
DLL epoch: 19
DLL bad signal mask: 19005
DLL old termios: 5
DLL malloc env: 28
API major: 0
API minor: 51
Shared data: 3
DLL identifier: cygwin1
Mount registry: 2
Cygnus registry name: Cygnus Solutions
Cygwin registry name: Cygwin
Program options name: Program Options
Cygwin mount registry name: mounts v2
Cygdrive flags: cygdrive flags
Cygdrive prefix: cygdrive prefix
Cygdrive default prefix:
Build date: Mon Feb 25 11:14:34 EST 2002
Shared id: cygwin1S3
Cygwin Package Information
Last downloaded files to: Z:\cygwin-packages
Last downloaded files from: http://planetmirror.com/pub/sourceware/cygwin
Package Version
ash 20020131-1
bash 2.05a-3
cygrunsrv 0.95-1
cygwin 1.3.10-1
cygwin-src 1.3.10-1
diff 0.0
fileutils 4.1-1
findutils 4.1
gawk 3.0.4-1
gdbm 1.8.0-4
grep 2.5g
groff 1.17.2-1
gzip 1.3.2-1
inetutils 1.3.2-17
less 358-3
libintl 0.10.38-3
libintl1 0.10.40-1
libncurses5 5.2-1
libncurses6 5.2-8
libreadline4 4.1-2
libreadline5 4.2a-1
login 1.4-3
man 1.5g-2
ncurses 5.2-8
openssh 3.1p1-1
openssl 0.9.6c-3
pcre 3.7-1
readline 4.2a-1
sed 3.02-1
sh-utils 2.0-2
tar 1.13.19-1
termcap 20010825-1
terminfo 5.2-1
textutils 2.0.21-1
w32api 1.2-1
which 1.5-1
zlib 1.1.3-7
Use -h to see help about each section
--
Unsubscribe info: http://cygwin.com/ml/#unsubscribe-simple
Bug reporting: http://cygwin.com/bugs.html
Documentation: http://cygwin.com/docs.html
FAQ: http://cygwin.com/faq/
^ permalink raw reply [flat|nested] 14+ messages in thread
end of thread, other threads:[~2002-04-09 16:34 UTC | newest]
Thread overview: 14+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2002-03-12 14:53 mmap of large amount returns invalid pointer Heribert Dahms
2002-03-12 18:48 ` Stephen Weeks
2002-03-12 18:48 ` Christopher Faylor
2002-03-13 2:23 ` Corinna Vinschen
2002-03-13 14:25 ` Stephen Weeks
2002-03-14 4:30 ` Corinna Vinschen
2002-03-17 11:37 ` Stephen Weeks
2002-03-19 3:43 ` Corinna Vinschen
2002-03-21 11:28 ` Stephen Weeks
2002-04-09 9:35 ` Corinna Vinschen
-- strict thread matches above, loose matches on Subject: below --
2002-03-11 21:08 Stephen Weeks
2002-03-12 2:23 ` Corinna Vinschen
2002-03-12 11:17 ` Stephen Weeks
2002-03-12 12:44 ` Corinna Vinschen
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