Hi!
Can this code section from chan_sip.c (begin at line 14920) cause
deadlocks if any error occurs between the mutex lock for iflock?
--- snip ---
/* Check for interfaces needing to be killed */
ast_mutex_lock(&iflock);
restartsearch:
t = time(NULL);
/* don't scan the interface list if it hasn't been a
reasonable period
of time since the last time we did it (when MWI is being
sent, we can
get back to this point every millisecond or less)
*/
for (sip = iflist; !fastrestart && sip; sip = sip->next) {
...
}
ast_mutex_unlock(&iflock);
--- snip ---
Asterisk log:
--- snip ---
[Mar 16 12:31:18] ERROR[11927]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: chan_sip.c
line 4303 (sip_alloc): Deadlock? waited 5 sec for mutex '
&iflock'?
[Mar 16 12:31:18] ERROR[11927]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: chan_sip.c
line 14920 (do_monitor): '&iflock' was locked here.
[Mar 16 12:31:18] ERROR[11942]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: pbx.c line
2105 (ast_extension_state_del): Deadlock? waited 5 sec fo
r mutex '&(&hints)->lock'?
[Mar 16 12:31:18] ERROR[11942]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: pbx.c line
1982 (ast_hint_state_changed): '&(&hints)->lock' was lock
ed here.
[Mar 16 12:31:18] ERROR[11927]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: chan_sip.c
line 4303 (sip_alloc): Deadlock? waited 5 sec for mutex '
&iflock'?
[Mar 16 12:31:18] ERROR[11927]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: chan_sip.c
line 14920 (do_monitor): '&iflock' was locked here.
[Mar 16 12:31:18] ERROR[11942]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: pbx.c line
2105 (ast_extension_state_del): Deadlock? waited 5 sec fo
r mutex '&(&hints)->lock'?
[Mar 16 12:31:18] ERROR[11942]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: pbx.c line
1982 (ast_hint_state_changed): '&(&hints)->lock' was lock
ed here.
[Mar 16 12:31:18] ERROR[11927]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: chan_sip.c
line 4303 (sip_alloc): Deadlock? waited 5 sec for mutex '
&iflock'?
[Mar 16 12:31:18] ERROR[11927]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: chan_sip.c
line 14920 (do_monitor): '&iflock' was locked here.
[Mar 16 12:31:18] ERROR[11942]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: pbx.c line
2105 (ast_extension_state_del): Deadlock? waited 5 sec fo
r mutex '&(&hints)->lock'?
[Mar 16 12:31:18] ERROR[11942]
/usr/src/asterisk/asterisk-1.4.1/include/asterisk/lock.h: pbx.c line
1982 (ast_hint_state_changed): '&(&hints)->lock' was lock
ed here.
--- snip ---
Cheers
Harald
-------
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