[Bug 221679] x11-fm/thunar: Crash on Directory Delete (exited on signal 6)

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=221679

Guido Falsi <madpilot at FreeBSD.org> changed:

           What    |Removed                     |Added
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             Status|New                         |In Progress

--- Comment #13 from Guido Falsi <madpilot at FreeBSD.org> ---
(In reply to Guido Falsi from comment #12)
> Created attachment 186813 [details]
> xfdesktop crash backtrace
> 
> I'm analyzing this crash.

Disclaimer: I have very little experience with multi-threaded programming and
mutexes.

My first analysis is that in the specific code path glib is trying to acquire
the same mutex lock twice in a row in the same thread, which is clearly a bad
thing.

The lock is acquired in process_kqueue_notifications (kqueue-helper.c:292) and
again in _kh_cancel_sub (kqueue-helper.c:509), causing the abort and core dump.

More testing needed before I can suggest a patch.

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