* [Bug nptl/19193] pthread_kill returns ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
@ 2021-08-17 6:23 ` fweimer at redhat dot com
2021-08-17 6:25 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 6:23 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |fweimer at redhat dot com
--- Comment #2 from Florian Weimer <fweimer at redhat dot com> ---
With the changed pthread_cancel implementation in glibc 2.34, pthread_cancel
can now fail with ESRCH, too.
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* [Bug nptl/19193] pthread_kill returns ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
2021-08-17 6:23 ` [Bug nptl/19193] " fweimer at redhat dot com
@ 2021-08-17 6:25 ` fweimer at redhat dot com
2021-08-17 12:01 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 6:25 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|--- |DUPLICATE
Status|NEW |RESOLVED
--- Comment #3 from Florian Weimer <fweimer at redhat dot com> ---
Bug 12889 is essentially the same bug, I think.
*** This bug has been marked as a duplicate of bug 12889 ***
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* [Bug nptl/19193] pthread_kill returns ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
2021-08-17 6:23 ` [Bug nptl/19193] " fweimer at redhat dot com
2021-08-17 6:25 ` fweimer at redhat dot com
@ 2021-08-17 12:01 ` fweimer at redhat dot com
2021-08-17 12:01 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 12:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Resolution|DUPLICATE |---
Status|RESOLVED |REOPENED
Assignee|unassigned at sourceware dot org |fweimer at redhat dot com
--- Comment #4 from Florian Weimer <fweimer at redhat dot com> ---
We need to fix this bug separately.
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* [Bug nptl/19193] pthread_kill returns ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (2 preceding siblings ...)
2021-08-17 12:01 ` fweimer at redhat dot com
@ 2021-08-17 12:01 ` fweimer at redhat dot com
2021-08-17 12:01 ` [Bug nptl/19193] pthread_kill, pthread_cancel return " fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 12:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|REOPENED |ASSIGNED
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (3 preceding siblings ...)
2021-08-17 12:01 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 12:01 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Summary|pthread_kill returns ESRCH |pthread_kill,
|for a thread ID whose |pthread_cancel return ESRCH
|lifetime has not ended |for a thread ID whose
| |lifetime has not ended
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (4 preceding siblings ...)
2021-08-17 12:01 ` [Bug nptl/19193] pthread_kill, pthread_cancel return " fweimer at redhat dot com
@ 2021-08-17 12:45 ` fweimer at redhat dot com
2021-08-17 13:52 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 12:45 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugzilla.redhat.com
| |/show_bug.cgi?id=1994068
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (5 preceding siblings ...)
2021-08-17 12:45 ` fweimer at redhat dot com
@ 2021-08-17 13:52 ` fweimer at redhat dot com
2021-09-13 10:46 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-08-17 13:52 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
--- Comment #5 from Florian Weimer <fweimer at redhat dot com> ---
Patches posted:
https://sourceware.org/pipermail/libc-alpha/2021-August/130207.html
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (6 preceding siblings ...)
2021-08-17 13:52 ` fweimer at redhat dot com
@ 2021-09-13 10:46 ` fweimer at redhat dot com
2021-09-17 11:29 ` fweimer at redhat dot com
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From: fweimer at redhat dot com @ 2021-09-13 10:46 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
Target Milestone|--- |2.35
Status|ASSIGNED |RESOLVED
Resolution|--- |FIXED
--- Comment #6 from Florian Weimer <fweimer at redhat dot com> ---
Fixed for 2.35 via:
commit 8af8456004edbab71f8903a60a3cae442cf6fe69
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Sep 13 11:06:08 2021 +0200
nptl: pthread_kill, pthread_cancel should not fail after exit (bug 19193)
This closes one remaining race condition related to bug 12889: if
the thread already exited on the kernel side, returning ESRCH
is not correct because that error is reserved for the thread IDs
(pthread_t values) whose lifetime has ended. In case of a
kernel-side exit and a valid thread ID, no signal needs to be sent
and cancellation does not have an effect, so just return 0.
sysdeps/pthread/tst-kill4.c triggers undefined behavior and is
removed with this commit.
Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (7 preceding siblings ...)
2021-09-13 10:46 ` fweimer at redhat dot com
@ 2021-09-17 11:29 ` fweimer at redhat dot com
2021-09-20 12:58 ` cvs-commit at gcc dot gnu.org
2021-09-20 13:49 ` cvs-commit at gcc dot gnu.org
10 siblings, 0 replies; 12+ messages in thread
From: fweimer at redhat dot com @ 2021-09-17 11:29 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
Florian Weimer <fweimer at redhat dot com> changed:
What |Removed |Added
----------------------------------------------------------------------------
See Also| |https://bugzilla.redhat.com
| |/show_bug.cgi?id=2005142
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (8 preceding siblings ...)
2021-09-17 11:29 ` fweimer at redhat dot com
@ 2021-09-20 12:58 ` cvs-commit at gcc dot gnu.org
2021-09-20 13:49 ` cvs-commit at gcc dot gnu.org
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From: cvs-commit at gcc dot gnu.org @ 2021-09-20 12:58 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
--- Comment #7 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The master branch has been updated by Florian Weimer <fw@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=95dba35bf05e4a5d69dfae5e9c9d4df3646a7f93
commit 95dba35bf05e4a5d69dfae5e9c9d4df3646a7f93
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Sep 20 14:56:08 2021 +0200
nptl: pthread_kill needs to return ESRCH for old programs (bug 19193)
The fix for bug 19193 breaks some old applications which appear
to use pthread_kill to probe if a thread is still running, something
that is not supported by POSIX.
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* [Bug nptl/19193] pthread_kill, pthread_cancel return ESRCH for a thread ID whose lifetime has not ended
2015-10-31 11:42 [Bug nptl/19193] New: pthread_kill returns ESRCH for a thread ID whose lifetime has not ended fweimer at redhat dot com
` (9 preceding siblings ...)
2021-09-20 12:58 ` cvs-commit at gcc dot gnu.org
@ 2021-09-20 13:49 ` cvs-commit at gcc dot gnu.org
10 siblings, 0 replies; 12+ messages in thread
From: cvs-commit at gcc dot gnu.org @ 2021-09-20 13:49 UTC (permalink / raw)
To: glibc-bugs
https://sourceware.org/bugzilla/show_bug.cgi?id=19193
--- Comment #8 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
The release/2.34/master branch has been updated by Florian Weimer
<fw@sourceware.org>:
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=73c7f5a87971de2797f261e1a447f68dce09284b
commit 73c7f5a87971de2797f261e1a447f68dce09284b
Author: Florian Weimer <fweimer@redhat.com>
Date: Mon Sep 20 14:56:08 2021 +0200
nptl: pthread_kill needs to return ESRCH for old programs (bug 19193)
The fix for bug 19193 breaks some old applications which appear
to use pthread_kill to probe if a thread is still running, something
that is not supported by POSIX.
(cherry picked from commit 95dba35bf05e4a5d69dfae5e9c9d4df3646a7f93)
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