Bug#551903: libc6-i686 pthread_cond_wait fails to reacquire mutex upon cancellation

[Aurelien Jarno <aurelien@aurel32.net>]

Aurelien Jarno a écrit :
> On Thu, Jun 03, 2010 at 10:09:45PM +0300, Rémi Denis-Courmont wrote:
>> Le jeudi 3 juin 2010 22:00:13 Aurelien Jarno, vous avez écrit :
>>> I have found a machine with almost the same CPU, the only difference
>>> being the speed (3.00 GHz instead of 2.80 GHz). I am unable to reproduce
>>> the problem, I have run the testcase more than 200000 times over last
>>> night.
>> With SMT ("HyperThread") support?
> 
> Yes, with HyperThreading enabled.
> 
>>> Maybe the problem is actually not in the GNU libc. What kernel are you
>>> running?
>> Normally, I use upstream 2.6.32.15 at the moment.
>> But I also hit the bug with Debian 2.6.32-5-686.
>>
> 
> I tried on a 2.6.26 kernel, I'll try to reproduce it with this kernel.
> 

I tried on a 2.6.32-5-686 kernel, and it hasn't failed in more than
300000 loops. There is probably something different on your system
causing the issue.

-- 
Aurelien Jarno                          GPG: 1024D/F1BCDB73
aurelien@aurel32.net                 http://www.aurel32.net