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[Bug nptl/16892] Invalid futex demotion in __lll_timedlock
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Tue, 12 Aug 2014 11:58:28 +0000
- Subject: [Bug nptl/16892] Invalid futex demotion in __lll_timedlock
- Auto-submitted: auto-generated
- References: <bug-16892-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=16892
--- Comment #1 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
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The branch, master has been updated
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https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=4e75751cbbd47242946f817111066f511dbba739
commit 4e75751cbbd47242946f817111066f511dbba739
Author: Bernard Ogden <bernie.ogden@linaro.org>
Date: Mon Aug 11 15:26:48 2014 +0100
Check value of futex before updating in __lll_timedlock
2014-08-12 Bernard Ogden <bernie.ogden@linaro.org>
[BZ #16892]
* sysdeps/nptl/lowlevellock.h (__lll_timedlock): Use
atomic_compare_and_exchange_bool_acq rather than atomic_exchange_acq.
-----------------------------------------------------------------------
Summary of changes:
ChangeLog | 6 ++++++
sysdeps/nptl/lowlevellock.h | 5 ++++-
2 files changed, 10 insertions(+), 1 deletions(-)
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