#23 app_conference crashes

[Mike Noskov]

when two users are connected to the conference using
SIP channel and gsm codec, asterisk crashes with
following info:

*** glibc detected *** asterisk: malloc(): memory
corruption: 0x091ecdb8 ***
======= Backtrace: =========
/lib/libc.so.6[0xaa83ea]
/lib/libc.so.6(malloc+0x74)[0xaa9792]
/usr/lib/asterisk/modules/app_conference.so
(mix_multiple_speakers+0x190)[0x6d4960]
/usr/lib/asterisk/modules/app_conference.so
(conference_exec+0x3c5)[0x6d0775]
/lib/libpthread.so.0[0xd14b80]
/lib/libc.so.6(__clone+0x5e)[0xb0edee]

simple extensions.conf fragment to reproduce:
[incoming]
exten => s,1,Answer
exten => s,2,Conference(100/S)

Asterisk version 1.2.4

[Steve Kann]

Logged In: YES
user_id=129849

Does this happen using the latest version? Is there
anything else that you're running on your machine?

Crashes in malloc are usually caused by memory corruption
somewhere _else_ within a program; so, this may or may not
be an app_conference bug.