kenmirrors/asterisk
1
0
Fork 0
mirror of https://github.com/asterisk/asterisk.git synced 2025-09-05 20:20:07 +00:00
Code Issues Packages Projects Releases Wiki Activity

chan_sip: Fix deadlock of monlock between unload_module and do_monitor

Browse Source 
Release monlock before calling pthread_join.  This ensures do_monitor
cannot freeze by locking monlock during module unload.

(closes issue ASTERISK-21406)
Reported by: Corey Farrell
Review: https://reviewboard.asterisk.org/r/3284/
........

Merged revisions 410224 from http://svn.asterisk.org/svn/asterisk/branches/1.8
........

Merged revisions 410225 from http://svn.asterisk.org/svn/asterisk/branches/11
........

Merged revisions 410226 from http://svn.asterisk.org/svn/asterisk/branches/12


git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@410227 65c4cc65-6c06-0410-ace0-fbb531ad65f3
This commit is contained in:
Corey Farrell
2014-03-07 22:56:15 +00:00
parent 2507179fec
commit 0291965f79
1 changed files with 9 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

14
channels/chan_sip.c
View File

@@ -34430,12 +34430,16 @@ static int unload_module(void)
ast_mutex_lock(&monlock);
if (monitor_thread && (monitor_thread != AST_PTHREADT_STOP) && (monitor_thread != AST_PTHREADT_NULL)) {
pthread_cancel(monitor_thread);
pthread_kill(monitor_thread, SIGURG);
pthread_join(monitor_thread, NULL);
pthread_t th = monitor_thread;
monitor_thread = AST_PTHREADT_STOP;
pthread_cancel(th);
pthread_kill(th, SIGURG);
ast_mutex_unlock(&monlock);
pthread_join(th, NULL);
} else {
monitor_thread = AST_PTHREADT_STOP;
ast_mutex_unlock(&monlock);
}
monitor_thread = AST_PTHREADT_STOP;
ast_mutex_unlock(&monlock);
/* Destroy all the dialogs and free their memory */
i = ao2_iterator_init(dialogs, 0);