Re: Bug#479952: libc6/s390 - __pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed.
On Wed, May 07, 2008 at 11:29:49AM +0200, Bastian Blank wrote:
> Package: libc6
> Version: 2.7-10
> Severity: important
> On Wed, May 07, 2008 at 09:34:12AM +0200, Matthias Klose wrote:
> > the build failure on s390 is unexpected; is it possible to extract a
> > test case?
> | java: pthread_mutex_lock.c:71: __pthread_mutex_lock: Assertion `mutex->__data.__owner == 0' failed.
> So another package failed about that (after mono and libto$bla). It
> looks like a race condition somewhere in the libpthread.
Looking quickly at the code the problem is that LLL_MUTEX_LOCK (mutex)
fails to acquire the mutex. It can be a bug in atomic.h or a bug in the
futexes implementation of the kernel.
It would be nice to have an strace of the problem to see the futex
syscall before this assertion.
Also a small testcase of the problem would be really helpful to debug
.''`. Aurelien Jarno | GPG: 1024D/F1BCDB73
: :' : Debian developer | Electrical Engineer
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