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From: "andi-bz at firstfloor dot org" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug nptl/16657] Lock elision breaks pthread_mutex_trylock
Date: Wed, 05 Mar 2014 00:32:00 -0000 [thread overview]
Message-ID: <bug-16657-131-kjZdhPbjJ8@http.sourceware.org/bugzilla/> (raw)
In-Reply-To: <bug-16657-131@http.sourceware.org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16657
--- Comment #3 from Andi Kleen <andi-bz at firstfloor dot org> ---
The patch is wrong. Adds a race.
The return value of pthread_mutex_destroy is undefined. I originally couldn't
find any software that cares about this, so it was changed. If someone really
cares about the return value the "right" change would be to add an abort to
destroy.
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next prev parent reply other threads:[~2014-03-05 0:32 UTC|newest]
Thread overview: 47+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-03-04 9:07 [Bug nptl/16657] New: " schwab@linux-m68k.org
2014-03-04 12:03 ` [Bug nptl/16657] " schwab@linux-m68k.org
2014-03-04 17:51 ` bugdal at aerifal dot cx
2014-03-05 0:32 ` andi-bz at firstfloor dot org [this message]
2014-03-05 1:12 ` bugdal at aerifal dot cx
2014-03-05 8:51 ` schwab@linux-m68k.org
2014-03-05 14:14 ` matz at suse dot de
2014-03-05 14:18 ` [Bug nptl/16657] Lock elision breaks pthread_mutex_detroy schwab@linux-m68k.org
2014-03-05 17:57 ` bugdal at aerifal dot cx
2014-03-06 16:03 ` carlos at redhat dot com
2014-03-10 14:14 ` triegel at redhat dot com
2014-03-18 15:31 ` snyder at bnl dot gov
2014-04-04 22:31 ` andi-bz at firstfloor dot org
2014-04-07 9:28 ` schwab@linux-m68k.org
2014-05-28 12:09 ` cvs-commit at gcc dot gnu.org
2014-06-02 14:25 ` pspacek at redhat dot com
2014-06-13 6:39 ` [Bug nptl/16657] Lock elision breaks pthread_mutex_destroy fweimer at redhat dot com
2014-06-16 16:41 ` fweimer at redhat dot com
2014-06-16 16:49 ` bugdal at aerifal dot cx
2014-06-16 16:55 ` fweimer at redhat dot com
2014-06-16 17:10 ` schwab@linux-m68k.org
2014-06-17 17:39 ` cvs-commit at gcc dot gnu.org
2014-06-25 19:23 ` cvs-commit at gcc dot gnu.org
2014-07-02 15:48 ` jmbnyc at gmail dot com
2014-07-02 16:19 ` bugdal at aerifal dot cx
2014-07-02 17:19 ` jmbnyc at gmail dot com
2014-07-02 18:07 ` bugdal at aerifal dot cx
2014-07-02 18:18 ` jmbnyc at gmail dot com
2014-07-03 3:13 ` andi-bz at firstfloor dot org
2014-07-03 3:25 ` jmbnyc at gmail dot com
2014-07-03 16:51 ` schwab@linux-m68k.org
2014-07-21 20:43 ` cvs-commit at gcc dot gnu.org
2014-08-19 0:36 ` cvs-commit at gcc dot gnu.org
2014-08-22 11:52 ` cvs-commit at gcc dot gnu.org
2014-08-25 13:05 ` cvs-commit at gcc dot gnu.org
2014-08-25 13:10 ` azanella at linux dot vnet.ibm.com
2014-10-01 18:43 ` carlos at redhat dot com
2014-10-01 20:49 ` schwab@linux-m68k.org
2014-10-01 21:00 ` carlos at redhat dot com
2014-10-01 21:04 ` azanella at linux dot vnet.ibm.com
2014-10-02 14:02 ` schwab@linux-m68k.org
2014-11-07 17:06 ` cvs-commit at gcc dot gnu.org
2014-12-11 11:45 ` cvs-commit at gcc dot gnu.org
2014-12-11 11:48 ` schwab@linux-m68k.org
2014-12-11 11:48 ` schwab@linux-m68k.org
2015-02-18 14:45 ` fweimer at redhat dot com
2015-08-28 20:43 ` cvs-commit at gcc dot gnu.org
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