Summary:	ASTERISK-06500: jitterbuffer:core dump.
Reporter:	Tiszai (ptiszai)	Labels:
Date Opened:	2006-03-08 05:53:39.000-0600	Date Closed:	2006-05-11 09:58:24
Priority:	Critical	Regression?	No
Status:	Closed/Complete	Components:	Core/General
Versions:		Frequency of Occurrence
Related Issues:
Environment:		Attachments:
Description:	The Asterisk crash. gdb core asterisk: "#0  jb_next (jb=0x0) at jitterbuf.c:762                                                                                                     762             if (jb->info.silence_begin_ts) {                                                                                           (gdb) bt                                                                                                                                   #0  jb_next (jb=0x0) at jitterbuf.c:762                                                                                                     #1  0xb67d4377 in __get_from_jb (p=0x823a978) at chan_iax2.c:2308                                                                           #2  0xb67e793d in iax2_process_thread (data=0x81c5a40) at chan_iax2.c:7921                                                                 #3  0xb7fbf9c8 in start_thread () from /lib/tls/libpthread.so.0                                                                             #4  0xb7ec1ffa in clone () from /lib/tls/libc.so.6                                                                                                                                                                                                                                                                                                                                                                                                                                                       (gdb) bt full                                                                                                                               #0  jb_next (jb=0x0) at jitterbuf.c:762                                                                                                     No locals.                                                                                                                                 #1  0xb67d4377 in __get_from_jb (p=0x823a978) at chan_iax2.c:2308                                                                           frame = {data = 0x0, ts = 0, ms = 0, type = 0, next = 0x0,                                                                                 prev = 0xb7fc14a8}                                                                                                                         ret = Variable "ret" is not available.                                                                                                     (gdb)" version: Asterisk SVN-branch-1.2-r11281
Comments:	By: Denis Smirnov (mithraen) 2006-03-09 03:38:40.000-0600 I have this problem too. By: Clod Patry (junky) 2006-03-09 19:20:32.000-0600 Could you provide a bt full and a thread apply all bt in an attached file. By: Russell Bryant (russell) 2006-03-16 21:02:58.000-0600 We'll need a backtrace using "make dont-optimize" because the line numbers aren't making any sense. By: Mariusz Piwnik (maniek) 2006-03-27 02:33:09.000-0600 So I have this problem with SVN-trunk-r14141. gdb output from asterisk compiled normally. Thread 1 (process 13394): #0  jb_next (jb=0x0) at jitterbuf.c:757 #1  0x00dcac27 in get_from_jb (data=0xb7505968) at chan_iax2.c:2312 #2  0x08057078 in ast_sched_runq (con=0x8460a10) at sched.c:363 #3  0x00dbcb23 in sched_thread (ignore=0x0) at chan_iax2.c:8274 ---Type <return> to continue, or q <return> to quit--- #4  0x00409b80 in start_thread () from /lib/libpthread.so.0 ASTERISK-1  0x00a819ce in clone () from /lib/libc.so.6 (gdb) By: Serge Vecher (serge-v) 2006-05-02 10:17:43 Is this still a problem? If so, please produce an updated backtrace from a non-optimized build. Thanks very much. By: Joshua C. Colp (jcolp) 2006-05-02 11:49:58 I am aware of this issue under certain race conditions. I am also currently waiting for a report back to see if a patch I created fixes the issue. By: Denis Smirnov (mithraen) 2006-05-02 12:32:19 It's looks like race. Why jb can be NULL in this functions? By: Joshua C. Colp (jcolp) 2006-05-03 11:09:43 Can you give latest trunk a try? I just put in something that should fix this. By: Serge Vecher (serge-v) 2006-05-11 09:58:24 If you are able to reproduce this issue in trunk wit rev > 26900, please reopen the bug with a new backtrace from non-optimized build. Thanks.