[BZ 5240][PATCH] Pthread hang where there are still waiters when mutex is in "unlocked" state.

Ryan S. Arnold rsa@us.ibm.com
Fri Nov 16 21:53:00 GMT 2007


On Thu, 2007-11-01 at 13:45 -0500, Ryan S. Arnold wrote:
> Per the problem description in bugzilla 5240:
> 
> "A customer identified a potential race condition in
> nptl/sysdeps/unix/sysv/linux/lowlevellock.c (__lll_timedlock_wait)
> which causes waiting threads not to be woken up under certain circumstances."
> 
> http://sources.redhat.com/bugzilla/show_bug.cgi?id=5240
> 

Hi Ulrich.  I have reopened bugz 5240 because the hang still reproduces
with your recent patch.  Any ideas where to go from here?


Ryan S. Arnold
IBM Linux Technology Center
Linux Toolchain Development



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