[asterisk-bugs] [Asterisk 0014019]: Starting or restarting asterisk causes seg fault and core dump, apparently in ael/pval.c:4833

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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http://bugs.digium.com/view.php?id=14019 
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Reported By:                ckjohnsonme
Assigned To:                murf
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Project:                    Asterisk
Issue ID:                   14019
Category:                   PBX/pbx_ael
Reproducibility:            sometimes
Severity:                   crash
Priority:                   normal
Status:                     ready for testing
Asterisk Version:           SVN 
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!): 160852 
Disclaimer on File?:        N/A 
Request Review:              
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Date Submitted:             2008-12-03 20:11 CST
Last Modified:              2008-12-09 09:03 CST
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Summary:                    Starting or restarting asterisk causes seg fault and
core dump, apparently in ael/pval.c:4833
Description: 
[root at freedom asterisk]# asterisk -V
Asterisk SVN-trunk-r160791
[root at freedom asterisk]# service asterisk start
Starting asterisk:                                         [  OK  ]
[root at freedom asterisk]# service asterisk restart
Shutting down asterisk: Asterisk ended with exit status 0
Asterisk shutdown normally.
                                                           [  OK  ]
Starting asterisk:                                         [  OK  ]
[root at freedom asterisk]# /usr/sbin/safe_asterisk: line 138: 11599
Segmentation fault      (core dumped) nice -n $PRIORITY
${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} > /dev/${TTY} 2>&1 <
/dev/${TTY}
Asterisk ended with exit status 139
Asterisk exited on signal 11.
Automatically restarting Asterisk.
mpg123: no process killed
/usr/sbin/safe_asterisk: line 138: 11643 Segmentation fault      (core
dumped) nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} >
/dev/${TTY} 2>&1 < /dev/${TTY}
Asterisk ended with exit status 139
Asterisk exited on signal 11.
Automatically restarting Asterisk.
mpg123: no process killed
/usr/sbin/safe_asterisk: line 138: 11688 Segmentation fault      (core
dumped) nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} >
/dev/${TTY} 2>&1 < /dev/${TTY}
Asterisk ended with exit status 139
Asterisk exited on signal 11.
Automatically restarting Asterisk.
mpg123: no process killed
/usr/sbin/safe_asterisk: line 138: 11732 Segmentation fault      (core
dumped) nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} >
/dev/${TTY} 2>&1 < /dev/${TTY}
Asterisk ended with exit status 139
Asterisk exited on signal 11.
Automatically restarting Asterisk.
mpg123: no process killed
/usr/sbin/safe_asterisk: line 138: 11775 Segmentation fault      (core
dumped) nice -n $PRIORITY ${ASTSBINDIR}/asterisk -f ${CLIARGS} ${ASTARGS} >
/dev/${TTY} 2>&1 < /dev/${TTY}
Asterisk ended with exit status 139
Asterisk exited on signal 11.
Automatically restarting Asterisk.
mpg123: no process killed

The problem occurs frequently but not reliably.  Starting asterisk service
usually causes one or more segfaults before safe_asterisk successfully
starts asterisk.
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---------------------------------------------------------------------- 
 (0096005) ckjohnsonme (reporter) - 2008-12-09 09:03
 http://bugs.digium.com/view.php?id=14019#c96005 
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I applied the patch, make, make install, and now starting asterisk succeeds
quietly, and reloading ael produces warnings and errors, but informs me of
the reload failure politely without segfault.

After I fixed the errors in extensions.ael so it would load, I reloaded
ael 10 times without any segfault.

Thanks for the prompt resolution.  I'm not familiar with the code, but
from your patch it looks like some nasty memory stomping was precipitated
by my configuration errors. 

Issue History 
Date Modified    Username       Field                    Change               
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2008-12-09 09:03 ckjohnsonme    Note Added: 0096005                          
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