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Re: SIGSEGV in pthread_mutex_lock?

On Wed, Jun 09, 2004 at 04:32:08PM +0100, Andrew Suffield wrote:
> On Wed, Jun 09, 2004 at 01:59:50PM +0200, Marcin Owsiany wrote:
> > Basically this is a cry for help with bug 252170, filed against
> > xmms-xf86audio. I think the bug is not in this package, just that
> > installing this package exposes some bug in X libraries, libpthread, or
> > maybe xmms?
> > 
> > If you have experience with either X, threads or maybe
> > xmms debugging please read
> > http://bugs.debian.org/cgi-bin/bugreport.cgi?bug=252170
> I'd be looking for memory corruption earlier on. You probably want to
> concentrate on duplicating the problem; it's probably triggered by a
> specific set of package versions, plugins loaded, and xmms
> configuration.

OK, now I am able to reproduce the problem. Please see the bug for more
info. However the stack trace seems to be garbage anyway, even with -dbg
versions of libraries loaded. I guess I need to find a moment before
which the stack is still OK, but I have no idea how to debug
multithreaded programs.

Still needing help,

Marcin Owsiany <porridge@debian.org>             http://marcin.owsiany.pl/
GnuPG: 1024D/60F41216  FE67 DA2D 0ACA FC5E 3F75  D6F6 3A0D 8AA0 60F4 1216

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