Thread 4 (Thread -1239471184 (LWP 27237)):
#0  0xb7e73189 in __lll_mutex_lock_wait () from /lib/tls/libpthread.so.0
No symbol table info available.
#1  0xb7e70b52 in _L_mutex_lock_17 () from /lib/tls/libpthread.so.0
No symbol table info available.
#2  0xb7f95530 in ?? () from /usr/lib/callweaver/libcallweaver.so.0
No symbol table info available.
#3  0x0805a120 in ?? ()
No symbol table info available.
#4  0x0805a058 in ?? ()
No symbol table info available.
#5  0xb61f21d8 in ?? ()
No symbol table info available.
#6  0xb7f0838e in opbx_generator_stop (pchan=0x805a058) at ../include/callweaver/lock.h:614
        __PRETTY_FUNCTION__ = "opbx_generator_stop"
#7  0xb7f0838e in opbx_generator_stop (pchan=0x805a058) at ../include/callweaver/lock.h:614
        __PRETTY_FUNCTION__ = "opbx_generator_stop"
#8  0xb7f01e6f in opbx_channel_free (chan=0x805a058) at channel.c:1029
        cur = <value optimized out>
        fd = <value optimized out>
        f = <value optimized out>
        headp = (struct varshead *) 0x805a48c
        name = "IAX2/202-7\000¶µÎ\023G0Uù·\000\000\000\000\000¡\005\bx\"\037¶\026\205ð·\000\000\000\000| S÷·\237\000\000\000\003T÷·¸R÷·X| \005\b\000\000\000\000 \034\000\000`º\004\bþ\017\000\000\v\035ð·"
        __PRETTY_FUNCTION__ = "opbx_channel_free"
#9  0xb7f04ff3 in opbx_hangup (chan=0x805a058) at channel.c:1259
        res = 0
        __PRETTY_FUNCTION__ = "opbx_hangup"
#10 0xb7f2a60c in __opbx_pbx_run (c=0x805a058) at pbx.c:2952
        __p = <value optimized out>