Re: Please test snapshots

[Ken Brown <kbrown@cornell.edu>]

[-- Attachment #1: Type: text/plain, Size: 2203 bytes --]

On 8/16/2012 2:37 PM, Christopher Faylor wrote:
> On Tue, Aug 14, 2012 at 12:48:03PM +0000, Adam Dinwoodie wrote:
>> Christopher Faylor wrote:
>>> On Fri, Aug 10, 2012 at 06:31:25AM +0000, Achim Gratz wrote:
>>>> Daniel Colascione writes:
>>>>> It works for me in bash.  I don't have tcsh installed, but I don't see why
>>>>> SIGINT would work differently there.
>>>>
>>>> Yes, it works in bash for me, too.  Tcsh does something that apparently
>>>> breaks with the new snapshot, but since I don't get any error messages, it's
>>>> hard to tell what that might be.
>>>
>>> You're not really giving us much to go on.  I've tried ping (both Windows and
>>> Cygwin version) under tcsh and both work fine.  And, the small snippet that
>>> you cut/paste in your original bug report clearly showed that ping was
>>> responding to CTRL-C.
>>
>> I'm still using this snapshot (I've had no reason to stop until now),
>> and have hit this issue two out of the last five times running Cygwin
>> ping.  The ping process is still visible in Process Explorer after
>> hitting ^C.  There's no obvious difference between when ^C terminates
>> the process and when it doesn't.
>
> I managed to duplicate this once a couple of days ago in a mintty/tcsh
> process but I had a very hard time consistently hitting it.  So I wrote
> a test case which ran ping repeatedly in a loop under mintty while another
> process killed it.  Eventually, I could duplicate the problem in a few
> minutes.  There were two problems, one illustrated by the "sigwaitinfo"
> mentioned in another thread and another caused by a race.
>
> After making some changes to signal handling, I ran the test case for an
> afternoon without issue.
>
> The current snapshot has these changes.

With the current snapshot (20120816 17:19:27), I have problems with 
emacs-X11.exe.  When I start it under X (by typing 'emacs&' in an xterm 
window), its CPU usage goes up to 50% and its window never displays. 
The attached file gives the result of attaching gdb and giving the 
command 'thread apply all bt full'.

I reproduced this running emacs under mintty, but it took longer for it 
to happen.

The problem doesn't occur with the 20120815 snapshot.

Ken

[-- Attachment #2: gdb.txt --]
[-- Type: text/plain, Size: 17941 bytes --]


Thread 10 (Thread 5884.0x17c4):
#0  0x76f6000d in ntdll!LdrFindResource_U () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76fef896 in ntdll!RtlQueryTimeZoneInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x7375eb68 in ?? ()
No symbol table info available.
#3  0x00000000 in ?? ()
No symbol table info available.

Thread 9 (Thread 5884.0x9a0):
#0  0x76f71f26 in ntdll!LdrQueryProcessModuleInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f71f26 in ntdll!LdrQueryProcessModuleInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x76fa3352 in ntdll!RtlCreateTagHeap () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
warning: (Internal error: pc 0x1b7 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1b7 in read in psymtab, but not in symtab.)

#3  0x000001b8 in ?? ()
warning: (Internal error: pc 0x1b7 in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0x1b7 in read in psymtab, but not in symtab.)

#4  0x044dac8c in ?? ()
No symbol table info available.
#5  0x6100538d in _cygtls::call2 (this=<optimized out>, func=0x2, 
    arg=0x18c9908, buf=0x6100551b)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygtls.cc:99
        res = <optimized out>
#6  0x044dff88 in ?? ()
No symbol table info available.
#7  0x74f3339a in KERNEL32!BaseCleanupAppcompatCacheSupport ()
   from /c/windows/syswow64/kernel32.dll
No symbol table info available.
#8  0x018c9908 in ?? ()
No symbol table info available.
#9  0x76f89ef2 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#10 0x018c9908 in ?? ()
No symbol table info available.
#11 0x76f89ec5 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#12 0x6107f110 in cygwin_inet_network () from /usr/bin/cygwin1.dll
No symbol table info available.
#13 0x00000000 in ?? ()
No symbol table info available.

Thread 8 (Thread 5884.0xc58):
#0  0x76f71f26 in ntdll!LdrQueryProcessModuleInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f71f26 in ntdll!LdrQueryProcessModuleInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x76fa3352 in ntdll!RtlCreateTagHeap () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
warning: (Internal error: pc 0x1c3 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1c3 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1c3 in read in psymtab, but not in symtab.)

#3  0x000001c4 in ?? ()
warning: (Internal error: pc 0x1c3 in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0x1c3 in read in psymtab, but not in symtab.)

#4  0x042dac8c in ?? ()
No symbol table info available.
#5  0x6100538d in _cygtls::call2 (this=<optimized out>, func=warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

0x2, 
    arg=0x18c9908, buf=0x6100551b)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygtls.cc:99
        res = <optimized out>
#6  0x042dff88 in ?? ()
No symbol table info available.
#7  0x74f3339a in KERNEL32!BaseCleanupAppcompatCacheSupport ()
   from /c/windows/syswow64/kernel32.dll
No symbol table info available.
#8  0x018c9908 in ?? ()
No symbol table info available.
#9  0x76f89ef2 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#10 0x018c9908 in ?? ()
No symbol table info available.
#11 0x76f89ec5 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#12 0x6107f110 in cygwin_inet_network () from /usr/bin/cygwin1.dll
No symbol table info available.
#13 0x00000000 in ?? ()
No symbol table info available.

Thread 7 (Thread 5884.0x15b0):
#0  0x76f71f26 in ntdll!LdrQueryProcessModuleInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f71f26 in ntdll!LdrQueryProcessModuleInformation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x76fa3352 in ntdll!RtlCreateTagHeap () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
warning: (Internal error: pc 0x1e3 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1e3 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1e3 in read in psymtab, but not in symtab.)

#3  0x000001e4 in ?? ()
warning: (Internal error: pc 0x1e3 in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0x1e3 in read in psymtab, but not in symtab.)

#4  0x040dac8c in ?? ()
No symbol table info available.
#5  0x6100538d in _cygtls::call2 (this=<optimized out>, func=warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

0x2, 
    arg=0x18cae60, buf=0x6100551b)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygtls.cc:99
        res = <optimized out>
#6  0x040dff88 in ?? ()
No symbol table info available.
#7  0x74f3339a in KERNEL32!BaseCleanupAppcompatCacheSupport ()
   from /c/windows/syswow64/kernel32.dll
No symbol table info available.
#8  0x018cae60 in ?? ()
No symbol table info available.
#9  0x76f89ef2 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#10 0x018cae60 in ?? ()
No symbol table info available.
#11 0x76f89ec5 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#12 0x6107f110 in cygwin_inet_network () from /usr/bin/cygwin1.dll
No symbol table info available.
#13 0x00000000 in ?? ()
No symbol table info available.

Thread 6 (Thread 5884.0x130c):
#0  0x76f6f8b1 in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f6f8b1 in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x75590a91 in WaitForSingleObjectEx ()
   from /c/windows/syswow64/KERNELBASE.dll
No symbol table info available.
warning: (Internal error: pc 0x31f in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x31f in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x31f in read in psymtab, but not in symtab.)

#3  0x00000320 in ?? ()
warning: (Internal error: pc 0x31f in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0x31f in read in psymtab, but not in symtab.)

#4  0x00000000 in ?? ()
No symbol table info available.

Thread 5 (Thread 5884.0x294):
#0  0x76f6f939 in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f6f939 in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x71ed635c in ?? () from /c/windows/System32/mswsock.dll
No symbol table info available.
#3  0x6100538d in _cygtls::call2 (this=<optimized out>, func=0x71ed62ee, 
    arg=0x18d20a0, buf=0x6100551b)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygtls.cc:99
        res = <optimized out>
#4  0x03cdff88 in ?? ()
No symbol table info available.
#5  0x74f3339a in KERNEL32!BaseCleanupAppcompatCacheSupport ()
   from /c/windows/syswow64/kernel32.dll
No symbol table info available.
#6  0x018d20a0 in ?? ()
No symbol table info available.
#7  0x76f89ef2 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#8  0x018d20a0 in ?? ()
No symbol table info available.
#9  0x76f89ec5 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#10 0x6107f110 in cygwin_inet_network () from /usr/bin/cygwin1.dll
No symbol table info available.
#11 0x00000000 in ?? ()
No symbol table info available.

Thread 4 (Thread 5884.0x96c):
#0  0x76f6f8b1 in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f6f8b1 in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x75590a91 in WaitForSingleObjectEx ()
   from /c/windows/syswow64/KERNELBASE.dll
No symbol table info available.
warning: (Internal error: pc 0x2bb in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x2bb in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x2bb in read in psymtab, but not in symtab.)

#3  0x000002bc in ?? ()
warning: (Internal error: pc 0x2bb in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0x2bb in read in psymtab, but not in symtab.)

#4  0x00000000 in ?? ()
No symbol table info available.

Thread 3 (Thread 5884.0xa84):
#0  0x76f7013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f7013d in ntdll!RtlEnableEarlyCriticalSectionEventCreation ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x76fa2f51 in ntdll!RtlWeaklyEnumerateEntryHashTable ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x3 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

#3  0x00000003 in ?? ()
warning: (Internal error: pc 0x2 in read in psymtab, but not in symtab.)

No symbol table info available.
#4  0x018cac28 in ?? ()
No symbol table info available.
#5  0x74f3339a in KERNEL32!BaseCleanupAppcompatCacheSupport ()
   from /c/windows/syswow64/kernel32.dll
No symbol table info available.
#6  0x00000000 in ?? ()
No symbol table info available.

Thread 2 (Thread 5884.0xc28):
#0  0x76f6f99e in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#1  0x76f6f99e in ntdll!RtlUpdateClonedSRWLock ()
   from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#2  0x75593a5e in SetThreadPriority () from /c/windows/syswow64/KERNELBASE.dll
No symbol table info available.
#3  0x610873cd in yield ()
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/miscfuncs.cc:252
        prio = 2
#4  0x610d6714 in _cygtls::lock() () from /usr/bin/cygwin1.dll
No symbol table info available.
#5  0x61030124 in setup_handler (sig=14, handler=0x592ca0, siga=..., 
    tls=0x28ce64)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/exceptions.cc:836
        res = <optimized out>
        hth = 0x80013000
        i = <optimized out>
        cx = {ContextFlags = 0, Dr0 = 0, Dr1 = 0, Dr2 = 0, Dr3 = 0, Dr6 = 0, 
          Dr7 = 0, FloatSave = {ControlWord = 0, StatusWord = 0, TagWord = 0, 
            ErrorOffset = 0, ErrorSelector = 0, DataOffset = 0, 
            DataSelector = 0, RegisterArea = '\000' <repeats 79 times>, 
            Cr0NpxState = 0}, SegGs = 0, SegFs = 0, SegEs = 51489176, 
          SegDs = 1627912124, Edi = 0, Esi = 2031619, Ebx = 51489116, Edx = 1, 
          Ecx = 0, Eax = 0, Ebp = 0, Eip = 0, SegCs = 0, EFlags = 0, Esp = 0, 
          SegSs = 0, 
          ExtendedRegisters = '\000' <repeats 12 times>, "\030", '\000' <repeats 31 times>"\340, ", '\000' <repeats 20 times>"\244, \030a\000\000\000\000È«\021\003^\370\aaL\310\031a", '\000' <repeats 152 times>"\320, \b'a\016\000\000\000\320\b'a\320\b'a\261=\000at\330(\000\016", '\000' <repeats 31 times>, "t\252\021\003\320\b'al\243\030a\000\000\000\000\016\000\000\000d\316(\000\001\000\000\000P\252\021\003\302<\000a+\000S\000+\000+\000T\377\021\003", '\000' <repeats 120 times>"\345, \370\366vH\323Xu\240", '\000' <repeats 15 times>, "`\253\021\003\004\254\021\003\244", '\000' <repeats 18 times>}
        interrupted = false
        __PRETTY_FUNCTION__ = "int setup_handler(int, void*, sigaction&, _cygtls*)"
#6  0x61030d77 in sigpacket::process (this=0x311ac04)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/exceptions.cc:1239
        continue_now = <optimized out>
        __PRETTY_FUNCTION__ = "int sigpacket::process()"
        thissig = @0x61272bd0: {{sa_handler = 0x592ca0 <alarm_signal_handler>, 
            sa_sigaction = 0x592ca0 <alarm_signal_handler>}, sa_mask = 8192, 
          sa_flags = 0}
        dummy = {{sa_handler = 0, sa_sigaction = 0}, sa_mask = 0, 
          sa_flags = 1342177280}
        rc = 1
        handler = <optimized out>
#7  0x610dd1c7 in wait_sig ()
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/sigproc.cc:1439
        sigres = <optimized out>
        sig = 14
        bit = <optimized out>
        nb = 164
        dummy_mask = 0
        clearwait = false
        __PRETTY_FUNCTION__ = "void wait_sig(void*)"
        pack = {si = {si_signo = 14, si_code = 4, si_pid = 4764, 
            si_uid = 1001, si_errno = 0, {__pad = {1629095104, 
                0 <repeats 31 times>}, _si_commune = {_si_code = 1629095104, 
                _si_read_handle = 0x0, _si_write_handle = 0x0, 
                _si_process_handle = 0x0, {_si_fd = 0, 
                  _si_pipe_fhandler = 0x0, _si_str = 0x0}}, {{{{
                      si_tid = 1629095104, si_overrun = 0}, si_sigval = {
                      sival_int = 1629095104, sival_ptr = 0x611a04c0}, 
                    si_value = {sival_int = 1629095104, 
                      sival_ptr = 0x611a04c0}}}}, {si_status = 1629095104, 
                si_utime = 0, si_stime = 0}, si_addr = 0x611a04c0}}, 
          pid = 4764, tls = 0x28ce64, mask = 0x28d874, {wakeup = 0x0, 
            thread_handle = 0x0, next = 0x0}}
#8  0x61003e65 in cygthread::callfunc (this=0x6118a400, 
    issimplestub=<optimized out>)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygthread.cc:51
        pass_arg = 0x6118a400
#9  0x61004401 in cygthread::stub (arg=0x6118a400)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygthread.cc:99
        notify = <optimized out>
        info = 0x6118a400
        __PRETTY_FUNCTION__ = "static DWORD cygthread::stub(void*)"
#10 0x6100538d in _cygtls::call2 (this=<optimized out>, 
    func=0x610043a0 <cygthread::stub(void*)>, arg=0x6118a400, buf=0x6100551b)
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/cygtls.cc:99
        res = <optimized out>
#11 0x0311ff88 in ?? ()
No symbol table info available.
#12 0x74f3339a in KERNEL32!BaseCleanupAppcompatCacheSupport ()
   from /c/windows/syswow64/kernel32.dll
No symbol table info available.
#13 0x6118a400 in cygthread::exiting () from /usr/bin/cygwin1.dll
No symbol table info available.
#14 0x0311ffd4 in ?? ()
No symbol table info available.
#15 0x76f89ef2 in ntdll!RtlpNtSetValueKey () from /c/windows/SysWOW64/ntdll.dll
No symbol table info available.
#16 0x6118a400 in cygthread::exiting () from /usr/bin/cygwin1.dll
No symbol table info available.
#17 0x7409eb34 in ?? ()
No symbol table info available.
#18 0x00000000 in ?? ()
No symbol table info available.

Thread 1 (Thread 5884.0xcfc):
#0  0x7559317a in SleepEx () from /c/windows/syswow64/KERNELBASE.dll
No symbol table info available.
#1  0x1d044b61 in ?? ()
No symbol table info available.
#2  0x00005d00 in ?? ()
No symbol table info available.
#3  0x8024d110 in ?? ()
No symbol table info available.
#4  0x610873a2 in yield ()
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/miscfuncs.cc:250
        i = 0
        prio = 0
#5  0x610d65fc in _sigfe () from /usr/bin/cygwin1.dll
No symbol table info available.
#6  0x61083180 in reallocf ()
    at /netrel/src/cygwin-snapshot-20120816-1/winsup/cygwin/malloc_wrapper.cc:96
No symbol table info available.
warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

#7  0x00000001 in ?? ()
warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0x1f in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1f in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x20 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1f in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x1f in read in psymtab, but not in symtab.)

#8  0x00000020 in ?? ()
warning: (Internal error: pc 0x1f in read in psymtab, but not in symtab.)

No symbol table info available.
warning: (Internal error: pc 0xf in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x0 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0xf in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0x10 in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0xf in read in psymtab, but not in symtab.)

warning: (Internal error: pc 0xf in read in psymtab, but not in symtab.)

#9  0x00000010 in ?? ()
warning: (Internal error: pc 0xf in read in psymtab, but not in symtab.)

No symbol table info available.
#10 0x00005d00 in ?? ()
No symbol table info available.
#11 0x00000000 in ?? ()
No symbol table info available.
A debugging session is active.

	Inferior 1 [process 5884] will be detached.

Quit anyway? (y or n) Detaching from program: /usr/bin/emacs-X11.exe, Pid 5884


[-- Attachment #3: Type: text/plain, Size: 218 bytes --]

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