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* [Bug gdb/10267] New: ERESTART_RESTARTBLOCK and function calling @ 2009-06-12 10:51 kirill at shutemov dot name 2009-07-02 10:37 ` [Bug gdb/10267] " kirill at shutemov dot name ` (3 more replies) 0 siblings, 4 replies; 8+ messages in thread From: kirill at shutemov dot name @ 2009-06-12 10:51 UTC (permalink / raw) To: gdb-prs I've got bug in handling ERESTART_RESTARTBLOCK. Kernel version is 2.6.28. Steps to reproduce: 1. Attach to process while it's in a syscall which use ERESTART_RESTARTBLOCK on interrupt. The easiest way is to attach to process which is in nanosleep(). 2. Run a syscall in context. 3. Continue the process. Results: Syscall(nanosleep) return error code 516(ERESTART_RESTARTBLOCK). It's kernel's internal error code and should never appear at userspace. It seems ARM-related since I can't reproduce it on x86. I'm not sure if it's kernel or gdb bug. Any ideas? Example: $ cat test.c #include <errno.h> #include <stdio.h> #include <time.h> int main() { struct timespec ts; int ret; ts.tv_sec = 100; ts.tv_nsec = 0; errno = 0; ret = nanosleep(&ts, NULL); printf("ret: %d, errno: %d\n", ret, errno); return 0; } $ gcc test.c $ ./a.out & $ gdb -p "$(pidof a.out)" -ex 'call getuid()' -ex 'c' -ex 'quit' GNU gdb (GDB) 6.8.50.20090417-debian Copyright (C) 2009 Free Software Foundation, Inc. License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html> This is free software: you are free to change and redistribute it. There is NO WARRANTY, to the extent permitted by law. Type "show copying" and "show warranty" for details. This GDB was configured as "arm-linux-gnueabi". For bug reporting instructions, please see: <http://www.gnu.org/software/gdb/bugs/>. Attaching to process 6136 Reading symbols from /root/a.out...(no debugging symbols found)...done. Reading symbols from /lib/libc.so.6...Reading symbols from /usr/lib/debug/lib/libc-2.5.so...(no debugging symbols found)...done. (no debugging symbols found)...done. Loaded symbols for /lib/libc.so.6 Reading symbols from /lib/ld-linux.so.3...Reading symbols from /usr/lib/debug/lib/ld-2.5.so...(no debugging symbols found)...done. (no debugging symbols found)...done. Loaded symbols for /lib/ld-linux.so.3 0x400bf97c in nanosleep () from /lib/libc.so.6 0x400bf97c <nanosleep+28>: mov r7, r12 $1 = 0 Continuing. ret: -1, errno: 516 Program exited normally. [1] + Done ./a.out -- Summary: ERESTART_RESTARTBLOCK and function calling Product: gdb Version: 6.8 Status: UNCONFIRMED Severity: normal Priority: P2 Component: gdb AssignedTo: unassigned at sourceware dot org ReportedBy: kirill at shutemov dot name CC: gdb-prs at sourceware dot org GCC build triplet: arm-linux-gnueabi GCC host triplet: arm-linux-gnueabi GCC target triplet: arm-linux-gnueabi http://sourceware.org/bugzilla/show_bug.cgi?id=10267 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling 2009-06-12 10:51 [Bug gdb/10267] New: ERESTART_RESTARTBLOCK and function calling kirill at shutemov dot name @ 2009-07-02 10:37 ` kirill at shutemov dot name 2009-10-12 8:36 ` kirill at shutemov dot name ` (2 subsequent siblings) 3 siblings, 0 replies; 8+ messages in thread From: kirill at shutemov dot name @ 2009-07-02 10:37 UTC (permalink / raw) To: gdb-prs ------- Additional Comments From kirill at shutemov dot name 2009-07-02 10:37 ------- Any progress? -- http://sourceware.org/bugzilla/show_bug.cgi?id=10267 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling 2009-06-12 10:51 [Bug gdb/10267] New: ERESTART_RESTARTBLOCK and function calling kirill at shutemov dot name 2009-07-02 10:37 ` [Bug gdb/10267] " kirill at shutemov dot name @ 2009-10-12 8:36 ` kirill at shutemov dot name 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com 3 siblings, 0 replies; 8+ messages in thread From: kirill at shutemov dot name @ 2009-10-12 8:36 UTC (permalink / raw) To: gdb-prs ------- Additional Comments From kirill at shutemov dot name 2009-10-12 08:36 ------- ping -- http://sourceware.org/bugzilla/show_bug.cgi?id=10267 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling 2009-06-12 10:51 [Bug gdb/10267] New: ERESTART_RESTARTBLOCK and function calling kirill at shutemov dot name 2009-07-02 10:37 ` [Bug gdb/10267] " kirill at shutemov dot name 2009-10-12 8:36 ` kirill at shutemov dot name @ 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com 3 siblings, 0 replies; 8+ messages in thread From: jan dot kratochvil at redhat dot com @ 2009-10-12 9:09 UTC (permalink / raw) To: gdb-prs -- What |Removed |Added ---------------------------------------------------------------------------- CC| |jan dot kratochvil at redhat | |dot com http://sourceware.org/bugzilla/show_bug.cgi?id=10267 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling 2009-06-12 10:51 [Bug gdb/10267] New: ERESTART_RESTARTBLOCK and function calling kirill at shutemov dot name ` (2 preceding siblings ...) 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com @ 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com 3 siblings, 0 replies; 8+ messages in thread From: jan dot kratochvil at redhat dot com @ 2009-10-12 9:09 UTC (permalink / raw) To: gdb-prs ------- Additional Comments From jan dot kratochvil at redhat dot com 2009-10-12 09:09 ------- While I know nothing about ARM I guess it is a kernel problem, fixed for x86*: http://lkml.indiana.edu/hypermail/linux/kernel/0802.3/2516.html It may be nice to update the testcase of http://sourceware.org/systemtap/wiki/utrace/tests specifically http://sources.redhat.com/cgi-bin/cvsweb.cgi/~checkout~/tests/ptrace-tests/tests/erestartsys.c?cvsroot=systemtap for ARM. -- http://sourceware.org/bugzilla/show_bug.cgi?id=10267 ------- You are receiving this mail because: ------- You are on the CC list for the bug, or are watching someone who is. ^ permalink raw reply [flat|nested] 8+ messages in thread
[parent not found: <bug-10267-4717@http.sourceware.org/bugzilla/>]
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling [not found] <bug-10267-4717@http.sourceware.org/bugzilla/> @ 2011-01-25 22:20 ` fmn at oneiroi dot net 2011-01-25 22:21 ` fmn at oneiroi dot net 2011-01-25 22:31 ` jan.kratochvil at redhat dot com 2 siblings, 0 replies; 8+ messages in thread From: fmn at oneiroi dot net @ 2011-01-25 22:20 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=10267 Milo <fmn at oneiroi dot net> changed: What |Removed |Added ---------------------------------------------------------------------------- Target|arm-linux-gnueabi | Priority|P2 |P1 CC| |fmn at oneiroi dot net Host|arm-linux-gnueabi | Version|6.8 |7.2 Target Milestone|6.8 |--- Build|arm-linux-gnueabi | -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling [not found] <bug-10267-4717@http.sourceware.org/bugzilla/> 2011-01-25 22:20 ` fmn at oneiroi dot net @ 2011-01-25 22:21 ` fmn at oneiroi dot net 2011-01-25 22:31 ` jan.kratochvil at redhat dot com 2 siblings, 0 replies; 8+ messages in thread From: fmn at oneiroi dot net @ 2011-01-25 22:21 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=10267 Milo <fmn at oneiroi dot net> changed: What |Removed |Added ---------------------------------------------------------------------------- Priority|P1 |P2 Version|7.2 |6.8 -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 8+ messages in thread
* [Bug gdb/10267] ERESTART_RESTARTBLOCK and function calling [not found] <bug-10267-4717@http.sourceware.org/bugzilla/> 2011-01-25 22:20 ` fmn at oneiroi dot net 2011-01-25 22:21 ` fmn at oneiroi dot net @ 2011-01-25 22:31 ` jan.kratochvil at redhat dot com 2 siblings, 0 replies; 8+ messages in thread From: jan.kratochvil at redhat dot com @ 2011-01-25 22:31 UTC (permalink / raw) To: gdb-prs http://sourceware.org/bugzilla/show_bug.cgi?id=10267 Jan Kratochvil <jan.kratochvil at redhat dot com> changed: What |Removed |Added ---------------------------------------------------------------------------- Target| |arm-linux-gnueabi Host| |arm-linux-gnueabi Target Milestone|--- |6.8 Build| |arm-linux-gnueabi --- Comment #4 from Jan Kratochvil <jan.kratochvil at redhat dot com> 2011-01-25 22:30:49 UTC --- Undone accidental change by fmn at oneiroi dot net. -- Configure bugmail: http://sourceware.org/bugzilla/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug. ^ permalink raw reply [flat|nested] 8+ messages in thread
end of thread, other threads:[~2011-01-25 22:31 UTC | newest] Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed) -- links below jump to the message on this page -- 2009-06-12 10:51 [Bug gdb/10267] New: ERESTART_RESTARTBLOCK and function calling kirill at shutemov dot name 2009-07-02 10:37 ` [Bug gdb/10267] " kirill at shutemov dot name 2009-10-12 8:36 ` kirill at shutemov dot name 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com 2009-10-12 9:09 ` jan dot kratochvil at redhat dot com [not found] <bug-10267-4717@http.sourceware.org/bugzilla/> 2011-01-25 22:20 ` fmn at oneiroi dot net 2011-01-25 22:21 ` fmn at oneiroi dot net 2011-01-25 22:31 ` jan.kratochvil at redhat dot com
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