[asterisk-bugs] [Asterisk 0015177]: Segmentation fault. Strange sound generate in channal when onhook(without segmentation fault).

Asterisk Bug Tracker noreply at bugs.digium.com
Thu Aug 27 18:00:14 CDT 2009


The following issue requires your FEEDBACK. 
====================================================================== 
https://issues.asterisk.org/view.php?id=15177 
====================================================================== 
Reported By:                KrisV
Assigned To:                
====================================================================== 
Project:                    Asterisk
Issue ID:                   15177
Category:                   Channels/chan_dahdi
Reproducibility:            sometimes
Severity:                   major
Priority:                   normal
Status:                     feedback
Asterisk Version:           1.6.1.0 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
====================================================================== 
Date Submitted:             2009-05-22 04:58 CDT
Last Modified:              2009-08-27 18:00 CDT
====================================================================== 
Summary:                    Segmentation fault. Strange sound generate in
channal when onhook(without segmentation fault).
Description: 
(gdb) bt
https://issues.asterisk.org/view.php?id=0  0x080884d6 in ?? ()
https://issues.asterisk.org/view.php?id=1  0xb6aa0cc0 in mwi_send_thread
(data=0x9f08900) at chan_dahdi.c:7905
https://issues.asterisk.org/view.php?id=2  0x08158a58 in dummy_start
(data=0x9f5ba30) at utils.c:968
https://issues.asterisk.org/view.php?id=3  0xb7d8d4ff in start_thread () from
/lib/tls/i686/cmov/libpthread.so.0
https://issues.asterisk.org/view.php?id=4  0xb7e8849e in clone () from
/lib/tls/i686/cmov/libc.so.6
Current language:  auto; currently asm
(gdb) bt full
https://issues.asterisk.org/view.php?id=0  0x080884d6 in ?? ()
No locals.
https://issues.asterisk.org/view.php?id=1  0xb6aa0cc0 in mwi_send_thread
(data=0x9f08900) at chan_dahdi.c:7905
	mtd = (struct mwi_thread_data *) 0x9f08900
	timeout_basis = {tv_sec = 1242920546, tv_usec = 610781}
	suspend = {tv_sec = -1241939128, tv_usec = 134705180}
	now = {tv_sec = 136050376, tv_usec = -1210462220}
	x = 3000
	i = 167098928
	res = 0
	num_read = 350
	mwi_send_state = MWI_SEND_SPILL
	__PRETTY_FUNCTION__ = "mwi_send_thread"
https://issues.asterisk.org/view.php?id=2  0x08158a58 in dummy_start
(data=0x9f5ba30) at utils.c:968
	__cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {-1210462220, 0,
0, -1241939016, -1503518733, 2121330312}, __mask_was_saved = 0}}, __pad =
{0xb5f98480, 0x0, 
    0x9f58fd0, 0xb7e1552e}}
	__cancel_routine = (void (*)(void *)) 0x807701e <ast_unregister_thread>
	__cancel_arg = (void *) 0xb5f98b90
	not_first_call = 0
	ret = (void *) 0xb7d8d2e0
	a = {start_routine = 0xb6aa0af9 <mwi_send_thread>, data = 0x9f08900, name
= 0x9f59070 "mwi_send_thread      started at [ 8389] chan_dahdi.c
do_monitor()"}
https://issues.asterisk.org/view.php?id=3  0xb7d8d4ff in start_thread () from
/lib/tls/i686/cmov/libpthread.so.0
No symbol table info available.
https://issues.asterisk.org/view.php?id=4  0xb7e8849e in clone () from
/lib/tls/i686/cmov/libc.so.6
No symbol table info available.
(gdb) thread apply all bt

Thread 36 (process 25598):
https://issues.asterisk.org/view.php?id=0  0xb7e88488 in clone () from
/lib/tls/i686/cmov/libc.so.6
https://issues.asterisk.org/view.php?id=1  0x00000000 in ?? ()

Thread 35 (process 25573):
https://issues.asterisk.org/view.php?id=0  0xb80b5430 in __kernel_vsyscall ()
https://issues.asterisk.org/view.php?id=1  0xb7d910e5 in
pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
https://issues.asterisk.org/view.php?id=2  0xb7e972ed in pthread_cond_wait ()
from /lib/tls/i686/cmov/libc.so.6
https://issues.asterisk.org/view.php?id=3  0x080e7c2b in ast_cond_wait
(cond=0x81d18a0, t=0x81ba368) at
/home/kris/workspace/asterisk/asterisk-1.6.1.0/include/asterisk/lock.h:1713
https://issues.asterisk.org/view.php?id=4  0x080e7b74 in logger_thread
(data=0x0) at logger.c:976
https://issues.asterisk.org/view.php?id=5  0x08158a58 in dummy_start
(data=0x9e878b0) at utils.c:968
https://issues.asterisk.org/view.php?id=6  0xb7d8d4ff in start_thread () from
/lib/tls/i686/cmov/libpthread.so.0
https://issues.asterisk.org/view.php?id=7  0xb7e8849e in clone () from
/lib/tls/i686/cmov/libc.so.6

Thread 34 (process 25571):
https://issues.asterisk.org/view.php?id=0  0xb80b5430 in __kernel_vsyscall ()
https://issues.asterisk.org/view.php?id=1  0xb7d910e5 in
pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/tls/i686/cmov/libpthread.so.0
https://issues.asterisk.org/view.php?id=2  0xb7e972ed in pthread_cond_wait ()
from /lib/tls/i686/cmov/libc.so.6
https://issues.asterisk.org/view.php?id=3  0x0814b587 in ast_cond_wait
(cond=0x9e82f74, t=0x9e82fa8) at
/home/kris/workspace/asterisk/asterisk-1.6.1.0/include/asterisk/lock.h:1713
https://issues.asterisk.org/view.php?id=4  0x0814b40f in tps_processing_function
(data=0x9e82f70) at
taskprocessor.c:293
https://issues.asterisk.org/view.php?id=5  0x08158a58 in dummy_start
(data=0x9e83010) at utils.c:968
https://issues.asterisk.org/view.php?id=6  0xb7d8d4ff in start_thread () from
/lib/tls/i686/cmov/libpthread.so.0
https://issues.asterisk.org/view.php?id=7  0xb7e8849e in clone () from
/lib/tls/i686/cmov/libc.so.6

Thread 33 (process 25570):
https://issues.asterisk.org/view.php?id=0  0xb80b5430 in __kernel_vsyscall ()
https://issues.asterisk.org/view.php?id=1  0xb7e77e2b in read () from
/lib/tls/i686/cmov/libc.so.6
https://issues.asterisk.org/view.php?id=2  0x081631c1 in read_char
(el=0x9e7a658, cp=0xbffd2ccb "?") at
/usr/include/bits/unistd.h:45
https://issues.asterisk.org/view.php?id=3  0x0815df77 in ?? ()
https://issues.asterisk.org/view.php?id=4  0x0815e1a1 in ?? ()
https://issues.asterisk.org/view.php?id=5  0x080812b8 in ?? ()
https://issues.asterisk.org/view.php?id=6  0xb7dba775 in __libc_start_main ()
from /lib/tls/i686/cmov/libc.so.6
https://issues.asterisk.org/view.php?id=7  0x0805f331 in ?? () at
../sysdeps/i386/elf/start.S:119

Thread 32 (process 25596):
https://issues.asterisk.org/view.php?id=0  0xb80b5430 in __kernel_vsyscall ()
https://issues.asterisk.org/view.php?id=1  0xb7e7dae7 in poll () from
/lib/tls/i686/cmov/libc.so.6
https://issues.asterisk.org/view.php?id=2  0x080e0df5 in ast_io_wait
(ioc=0x9eea918, howlong=1000) at io.c:275
https://issues.asterisk.org/view.php?id=3  0xb6dee65d in do_monitor (data=0x0)
at chan_mgcp.c:3484
https://issues.asterisk.org/view.php?id=4  0x08158a58 in dummy_start
(data=0x9eebdc8) at utils.c:968
https://issues.asterisk.org/view.php?id=5  0xb7d8d4ff in start_thread () from
/lib/tls/i686/cmov/libpthread.so.0
https://issues.asterisk.org/view.php?id=6  0xb7e8849e in clone () from
/lib/tls/i686/cmov/libc.so.6

---Type <return> to continue, or q <return> to quit---

Quit
(gdb) q
root at kris-desktop:~# asterisk -v
Asterisk 1.6.1.0, Copyright (C) 1999 - 2008 Digium, Inc. and others.
Created by Mark Spencer <markster at digium.com>
Asterisk comes with ABSOLUTELY NO WARRANTY; type 'core show warranty' for
details.
This is free software, with components licensed under the GNU General
Public
License version 2 and other licenses; you are welcome to redistribute it
under
certain conditions. Type 'core show license' for details.
=========================================================================
root at kris-desktop:~# uname -a
Linux kris-desktop 2.6.27.18-custom https://issues.asterisk.org/view.php?id=6
SMP Mon Apr 27 16:22:40 MSD 2009
i686 GNU/Linux

====================================================================== 

---------------------------------------------------------------------- 
 (0109763) tilghman (administrator) - 2009-08-27 18:00
 https://issues.asterisk.org/view.php?id=15177#c109763 
---------------------------------------------------------------------- 
There have been recent changes to chan_dahdi that may fix this crash.  I'd
like to see if you can reproduce this crash using SVN branch 1.6.1,
revision 212433 or later. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-08-27 18:00 tilghman       Note Added: 0109763                          
2009-08-27 18:00 tilghman       Status                   new => feedback     
======================================================================




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