[asterisk-dev] Asterisk 1.4.12 __ast_pthread_mutex_lock Deadlock

[Russell Bryant]

Hendrik Visage wrote:
> Really destroying SIP dialog
> '0d2dcbe4190529cf4e811b5305facc6d at 172.16.0.1' Method: OPTIONS
> [Oct  5 08:50:26] ERROR[24396]:
> /home/hvisage/ast/asterisk-1.4.12/include/asterisk/lock.h:284
> __ast_pthread_mutex_lock: channel.c line 4923 (ast_channel_lock):
> Deadlock? waited 5 sec for mutex '&chan->lock'?
> Segmentation fault

First of all, do not compile with DO_CRASH defined.  That is why it is crashing.

However, do compile with DEBUG_THREADS enabled.  When the deadlock occurs, save
the output of the "core show locks" CLI command.  That will show where the
deadlock has occurred.

$ sudo asterisk -rx "core show locks" > show_locks.txt

-- 
Russell Bryant
Software Engineer
Digium, Inc.