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[Bug nptl/13690] pthread_mutex_unlock potentially cause invalid access


http://sourceware.org/bugzilla/show_bug.cgi?id=13690

--- Comment #12 from Atsushi Nemoto <anemo at mba dot ocn.ne.jp> 2012-02-17 13:26:59 UTC ---
(In reply to comment #8)
> What kind of testing have you done with the patch?
> 
> Do you have a small test case that can trigger the failure even sporadically?
> 
> It would be nice to get a test case added that documents the class of failure
> we tried to fix.

Unfortunately I could not reproduce the problem and do not have any test case.

Actually, this problem was discovered by an code analysis from a report that
indicates futex_wake syscall was called with a wrong private flag.

So my patch is just a theoretical fix.

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