Summary:ASTERISK-19009: Deadlock on sip_new and load_realtime_queue.
Reporter:Steven Wheeler (swheeler)Labels:
Date Opened:2011-12-12 15:52:59.000-0600Date Closed:2011-12-14 08:29:03.000-0600
Status:Closed/CompleteComponents:Applications/app_queue Channels/chan_sip/General
Versions:Frequency of
One Time
is related toASTERISK-18740 Deadlock in queues during dialplan reload
Environment:CentOS release 5.7 (Final), Asterisk with MySQL as the real time configuration back end.Attachments:( 0) backtrace.txt
( 1) backtrace-full.txt
( 2) core-show-locks-20111212.txt
Description:From what I can tell it looks like asterisk deadlocked while processing a new SIP channel and loading a queue's configuration from the real time database.  In the uploaded core-show-locks-20111212 file the two threads that deadlocked are 0x42e49940 and 0x41dd8940.  Please let me know if there is any more information you need to debug this problem.
Comments:By: Steven Wheeler (swheeler) 2011-12-12 15:53:24.618-0600

Output of asterisk -rx 'core show locks'

By: Steven Wheeler (swheeler) 2011-12-12 15:55:31.283-0600

Output of gdb thread apply all bt

By: Steven Wheeler (swheeler) 2011-12-12 15:56:29.488-0600

Output of gdb thread apply all bt full

By: Steven Wheeler (swheeler) 2011-12-12 15:57:16.631-0600

Please note that the core file was generated using kill so the segfault is not related to this issue.

By: Richard Mudgett (rmudgett) 2011-12-12 17:14:48.256-0600

This appears to be the same deadlock as ASTERISK-18740.  Or at least the fix should also fix this deadlock.

By: Steven Wheeler (swheeler) 2011-12-13 09:51:44.449-0600

Any idea when the fix will make it into a release?

By: Richard Mudgett (rmudgett) 2011-12-13 10:05:52.102-0600

The fix for ASTERISK-18740 will be in v1.8.9.

By: Matt Jordan (mjordan) 2011-12-14 08:29:03.770-0600

I'm going to go ahead and close this issue as it is a duplicate of ASTERISK-18740.  If you test with the 1.8 branch (which is slated to become and find that the deadlock still occurs, please reopen this issue.