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* [Bug nptl/379] New: pthread_create fails but the thread executes some instructions
@ 2004-09-10 14:15 sebastien dot decugis at ext dot bull dot net
2004-09-10 14:17 ` [Bug nptl/379] " sebastien dot decugis at ext dot bull dot net
` (5 more replies)
0 siblings, 6 replies; 7+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-10 14:15 UTC (permalink / raw)
To: glibc-bugs
On some failure cases of the pthread_create routine, for exemple when specifying
a high-priority as a standard user which have not enough rights, the
pthread_create will return an error ENOPERM (which is normal) but the
not-created thread will execute for some instructions before being killed.
This can lead to some problems for exemple when the first instruction of the new
thread is a mutex_lock!
--
Summary: pthread_create fails but the thread executes some
instructions
Product: glibc
Version: unspecified
Status: NEW
Severity: normal
Priority: P2
Component: nptl
AssignedTo: drepper at redhat dot com
ReportedBy: sebastien dot decugis at ext dot bull dot net
CC: glibc-bugs at sources dot redhat dot com
http://sources.redhat.com/bugzilla/show_bug.cgi?id=379
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^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug nptl/379] pthread_create fails but the thread executes some instructions
2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
@ 2004-09-10 14:17 ` sebastien dot decugis at ext dot bull dot net
2004-09-10 14:36 ` jakub at redhat dot com
` (4 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-10 14:17 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From sebastien dot decugis at ext dot bull dot net 2004-09-10 14:17 -------
Created an attachment (id=191)
--> (http://sources.redhat.com/bugzilla/attachment.cgi?id=191&action=view)
This sample shows the bug (on an SMP machine)
I often get the following trace from this program execution (The "should not
see me" shows that the test failed) -- kernel is 2.6.8.1; NPTL from 2004/09/06;
2-way box:
[thedoc@nptl tmp]$ ./create
Test starting...
Thread attribute is ready, creating the thread...
Test passed
Should not see me
--
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^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug nptl/379] pthread_create fails but the thread executes some instructions
2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
2004-09-10 14:17 ` [Bug nptl/379] " sebastien dot decugis at ext dot bull dot net
@ 2004-09-10 14:36 ` jakub at redhat dot com
2004-09-10 14:52 ` sebastien dot decugis at ext dot bull dot net
` (3 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: jakub at redhat dot com @ 2004-09-10 14:36 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From jakub at redhat dot com 2004-09-10 14:36 -------
What --enable-kernel are you using?
If 2.6.1 and later, then kill __ASSUME_CLONE_STOPPED in
sysdeps/unix/sysv/linux/kernel_features.h
That would explain why I can't reproduce this.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |WAITING
http://sources.redhat.com/bugzilla/show_bug.cgi?id=379
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^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug nptl/379] pthread_create fails but the thread executes some instructions
2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
2004-09-10 14:17 ` [Bug nptl/379] " sebastien dot decugis at ext dot bull dot net
2004-09-10 14:36 ` jakub at redhat dot com
@ 2004-09-10 14:52 ` sebastien dot decugis at ext dot bull dot net
2004-09-10 15:10 ` sebastien dot decugis at ext dot bull dot net
` (2 subsequent siblings)
5 siblings, 0 replies; 7+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-10 14:52 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From sebastien dot decugis at ext dot bull dot net 2004-09-10 14:52 -------
Yes I'm using --enable-kernel=2.6.8.1 (with a running kernel 2.6.8.1).
Do you tell me to remove the following lines?
368 /* The CLONE_STOPPED flag was introduced in the 2.6.0-test1 series. */
369 #if __LINUX_KERNEL_VERSION >= 132609
370 # define __ASSUME_CLONE_STOPPED 1
371 #endif
Well, if that's it, shouldn't this be considered as a bug ?!?
Thanks!
Seb.
--
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^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug nptl/379] pthread_create fails but the thread executes some instructions
2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
` (2 preceding siblings ...)
2004-09-10 14:52 ` sebastien dot decugis at ext dot bull dot net
@ 2004-09-10 15:10 ` sebastien dot decugis at ext dot bull dot net
2004-09-12 5:58 ` drepper at redhat dot com
2004-09-16 23:23 ` cvs-commit at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: sebastien dot decugis at ext dot bull dot net @ 2004-09-10 15:10 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From sebastien dot decugis at ext dot bull dot net 2004-09-10 15:10 -------
Once I remove the
# define __ASSUME_CLONE_STOPPED 1
from the file, I'm also unable to reproduce the bug!
Is it a wrong usage from me to use --enable-kernel=2.6.8.1 ?
--
http://sources.redhat.com/bugzilla/show_bug.cgi?id=379
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^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug nptl/379] pthread_create fails but the thread executes some instructions
2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
` (3 preceding siblings ...)
2004-09-10 15:10 ` sebastien dot decugis at ext dot bull dot net
@ 2004-09-12 5:58 ` drepper at redhat dot com
2004-09-16 23:23 ` cvs-commit at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: drepper at redhat dot com @ 2004-09-12 5:58 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From drepper at redhat dot com 2004-09-12 05:58 -------
I have removed the __ASSUME_CLONE_STOPPED definition.
--
What |Removed |Added
----------------------------------------------------------------------------
Status|WAITING |RESOLVED
Resolution| |FIXED
http://sources.redhat.com/bugzilla/show_bug.cgi?id=379
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^ permalink raw reply [flat|nested] 7+ messages in thread* [Bug nptl/379] pthread_create fails but the thread executes some instructions
2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
` (4 preceding siblings ...)
2004-09-12 5:58 ` drepper at redhat dot com
@ 2004-09-16 23:23 ` cvs-commit at gcc dot gnu dot org
5 siblings, 0 replies; 7+ messages in thread
From: cvs-commit at gcc dot gnu dot org @ 2004-09-16 23:23 UTC (permalink / raw)
To: glibc-bugs
------- Additional Comments From cvs-commit at gcc dot gnu dot org 2004-09-16 23:23 -------
Subject: Bug 379
CVSROOT: /cvs/glibc
Module name: libc
Changes by: roland@sources.redhat.com 2004-09-16 23:23:21
Modified files:
nptl : pthread_create.c allocatestack.c
Log message:
2004-09-10 Roland McGrath <roland@redhat.com>
[BZ #379]
* allocatestack.c (allocate_stack): Remove [__ASSUME_CLONE_STOPPED]
code, since we don't try to use the broken CLONE_STOPPED any more.
* pthread_create.c (start_thread): Likewise.
Patches:
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/nptl/pthread_create.c.diff?cvsroot=glibc&r1=1.33&r2=1.34
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/nptl/allocatestack.c.diff?cvsroot=glibc&r1=1.48&r2=1.49
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end of thread, other threads:[~2004-09-16 23:23 UTC | newest]
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2004-09-10 14:15 [Bug nptl/379] New: pthread_create fails but the thread executes some instructions sebastien dot decugis at ext dot bull dot net
2004-09-10 14:17 ` [Bug nptl/379] " sebastien dot decugis at ext dot bull dot net
2004-09-10 14:36 ` jakub at redhat dot com
2004-09-10 14:52 ` sebastien dot decugis at ext dot bull dot net
2004-09-10 15:10 ` sebastien dot decugis at ext dot bull dot net
2004-09-12 5:58 ` drepper at redhat dot com
2004-09-16 23:23 ` cvs-commit at gcc dot gnu dot org
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