[May 30 09:47:49] ERROR[31842] lock.c: chan_sip.c line 23902 (handle_incoming): attempted unlock mutex 'owner' without owning it!
[May 30 09:47:49] ERROR[31842] lock.c: pbx.c line 9544 (pbx_builtin_setvar_helper): 'owner' was locked here.
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(ast_bt_get_addresses+0x1d) [0x4eb273]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(__ast_pthread_mutex_lock+0xd9) [0x4e3e6a]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(__ao2_lock+0x5a) [0x4467ec]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(pbx_builtin_setvar_helper+0xfc) [0x522198]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(pbx_builtin_setvar_multiple+0x17e) [0x5227fd]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/lib/asterisk/modules/app_queue.so(+0x721b) [0x7ffbfc69921b]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/lib/asterisk/modules/app_queue.so(+0x18efa) [0x7ffbfc6aaefa]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/lib/asterisk/modules/app_queue.so(+0x1ef95) [0x7ffbfc6b0f95]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(pbx_exec+0x1fb) [0x504678]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk() [0x50e579]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk(ast_spawn_extension+0x65) [0x50ffa5]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk() [0x510a05]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk() [0x512622]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /usr/sbin/asterisk() [0x56bc69]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /lib/libpthread.so.0(+0x69ca) [0x7ffc0d8399ca]
[May 30 09:47:49] ERROR[31842] /usr/src/asterisk/100511/asterisk-1.8.4.1/include/asterisk/lock.h: /lib/libc.so.6(clone+0x6d) [0x7ffc0e28f70d]
[May 30 09:47:49] ERROR[31842] lock.c: chan_sip.c line 23902 (handle_incoming): Error releasing mutex: Operation not permitted