Murmur segfault

[pavelhoral]

Hi,

my Murmur installation just crashed leaving this in system logs:

./syslog.1:May 27 05:50:57 serverName kernel: [12766167.330968] murmur.x86[18085]: segfault at 38c ip 80cadd4 sp ffa24e50 error 4 in murmur.x86[8048000+b1b000]
./messages:May 27 05:50:57 serverName kernel: [12766167.330968] murmur.x86[18085]: segfault at 38c ip 80cadd4 sp ffa24e50 error 4 in murmur.x86[8048000+b1b000]
./kern.log:May 27 05:50:57 serverName kernel: [12766167.330968] murmur.x86[18085]: segfault at 38c ip 80cadd4 sp ffa24e50 error 4 in murmur.x86[8048000+b1b000]

 

Version info (from murmur log file):

Murmur 1.2.2 (Compiled Feb  9 2010 17:44:13) running on X11: Linux 2.6.26-bpo.1-xen-amd64

 

Murmur log tail (IP prefixes are replaced with XXX.XXX.XXX):

<W>2010-05-27 04:52:22.561 1 => Starting voice thread
<W>2010-05-27 04:52:22.597 1 => <620:lukkes(12)> Authenticated
<W>2010-05-27 04:59:50.505 1 => <621:(-1)> New connection: XXX.XXX.XXX.75:38349
<W>2010-05-27 04:59:50.656 1 => <621:(-1)> Client version 1.2.0 (Win: 1.2.0)
<W>2010-05-27 04:59:50.679 1 => <621:dedcz(43)> Authenticated
<W>2010-05-27 05:03:55.712 1 => <621:dedcz(43)> Connection closed: The remote host closed the connection [1]
<W>2010-05-27 05:05:43.179 1 => <622:(-1)> New connection: XXX.XXX.XXX.75:38659
<W>2010-05-27 05:05:43.421 1 => <622:(-1)> Client version 1.2.0 (Win: 1.2.0)
<W>2010-05-27 05:05:43.443 1 => <622:dedcz(43)> Authenticated
<W>2010-05-27 05:24:24.516 1 => <620:lukkes(12)> Timeout
<W>2010-05-27 05:24:24.523 1 => <620:lukkes(12)> Connection closed:  [-1]
<W>2010-05-27 05:24:25.815 1 => <623:(-1)> New connection: XXX.XXX.XXX.42:64427
<W>2010-05-27 05:24:25.891 1 => <623:(-1)> Client version 1.2.2 (Win: 1.2.2)
<W>2010-05-27 05:24:25.912 1 => <623:lukkes(12)> Authenticated
<W>2010-05-27 05:42:27.446 1 => <623:lukkes(12)> Connection closed: The remote host closed the connection [1]
<W>2010-05-27 05:42:29.533 1 => <624:(-1)> New connection: XXX.XXX.XXX.42:62521
<W>2010-05-27 05:42:29.601 1 => <624:(-1)> Client version 1.2.2 (Win: 1.2.2)
<W>2010-05-27 05:42:29.627 1 => <624:lukkes(12)> Authenticated
<W>2010-05-27 05:42:39.798 1 => <624:lukkes(12)> Connection closed: The remote host closed the connection [1]
<W>2010-05-27 05:42:58.782 1 => <625:(-1)> New connection: XXX.XXX.XXX.42:62551
<W>2010-05-27 05:42:58.853 1 => <625:(-1)> Client version 1.2.2 (Win: 1.2.2)
<W>2010-05-27 05:42:58.879 1 => <625:lukkes(12)> Authenticated
<W>2010-05-27 05:43:13.560 1 => <622:dedcz(43)> Connection closed: The remote host closed the connection [1]
<W>2010-05-27 05:45:55.245 1 => <626:(-1)> New connection: XXX.XXX.XXX.75:38887
<W>2010-05-27 05:45:55.775 1 => <626:(-1)> Client version 1.2.0 (Win: 1.2.0)
<W>2010-05-27 05:45:55.797 1 => <626:dedcz(43)> Authenticated
<W>2010-05-27 05:48:46.207 1 => <625:lukkes(12)> Connection closed: The remote host closed the connection [1]
<W>2010-05-27 05:48:48.119 1 => <627:(-1)> New connection: XXX.XXX.XXX.42:61013
<W>2010-05-27 05:48:48.189 1 => <627:(-1)> Client version 1.2.2 (Win: 1.2.2)
<W>2010-05-27 05:48:48.225 1 => <627:lukkes(12)> Authenticated
<W>2010-05-27 05:50:21.303 1 => <627:lukkes(12)> Connection closed: The remote host closed the connection [1]
<W>2010-05-27 05:50:23.361 1 => <628:(-1)> New connection: XXX.XXX.XXX.42:63381
<W>2010-05-27 05:50:23.438 1 => <628:(-1)> Client version 1.2.2 (Win: 1.2.2)
<W>2010-05-27 05:50:23.469 1 => <628:lukkes(12)> Authenticated
<W>2010-05-27 05:50:57.617 1 => <626:dedcz(43)> Connection closed: The remote host closed the connection [1]

 

I have Ice allowed for localhost, which is accessed from PHP, but Apache's access.log does not contain anything from the time Murmur crashes. So I assume it must be the Murmur/Mumble communication itself. Maybe attempt to hack? I don't like segfaults. Any suggestions what I should do (I am not advanced in application debugging)?

Pavel

[hacst]

Murmur is pretty hardened in terms of communication with clients. My guess would be problems on the server itself. Ice, sqlite etc.

To figure out what exactly went wrong we need a stacktrace of the crash. See http://mumble.sourceforge.net/Debugging#Linux:_Using_gdb on how to create one.

[pavelhoral]

Thank you for the link. Unfortunatelly it happens after one month running Murmur. If it will ever happen again I'll return to this thread with the stacktrace.