Error while unref the pipeline

[Sebastian Dröge]

On Thu, 2016-11-24 at 11:07 +0100, 张若 wrote:
> Mostly, it will show:
> 
> GLib (gthread-posix.c): Unexpected error from C library during
> 'pthread_mutex_lock': Invalid argument.  Aborting.
> Aborted (core dumped)

Get a backtrace with gdb (make sure to have debug symbols). This means
something is locking an invalid (probably freed?) mutex somewhere.

-- 
Sebastian Dröge, Centricular Ltd · http://www.centricular.com
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