(gdb) bt
#0  0xb7d6be84 in mallopt () from /lib/tls/libc.so.6
#1  0xb7d6adcb in free () from /lib/tls/libc.so.6
#2  0xb66e61ce in parse_sip_options () from /usr/lib/openpbx.org/modules/chan_sip.so
#3  0xb66e6949 in parse_sip_options () from /usr/lib/openpbx.org/modules/chan_sip.so
#4  0xb66e1798 in parse_sip_options () from /usr/lib/openpbx.org/modules/chan_sip.so
#5  0xb7f09c3b in opbx_sched_runq () from /usr/lib/openpbx.org/libopenpbx.so.0
#6  0x4512517e in ?? ()
#7  0x000ca192 in ?? ()
#8  0x00000000 in ?? ()
#9  0x000003e8 in ?? ()
#10 0x0000dac0 in ?? ()
#11 0x00000000 in ?? ()
#12 0x00000000 in ?? ()
#13 0x00000000 in ?? ()
#14 0x000003e8 in ?? ()
#15 0x00101e00 in ?? ()
#16 0xb19d3a94 in ?? ()
#17 0x08065b98 in ?? ()
#18 0x00000000 in ?? ()
#19 0x4512517e in ?? ()
#20 0x000ca192 in ?? ()
#21 0x4512517e in ?? ()
#22 0x000ca57a in ?? ()
#23 0xb79b1bb0 in ?? ()
#24 0xb7fb5598 in ?? () from /usr/lib/openpbx.org/libopenpbx.so.0
#25 0x08065b80 in ?? ()
#26 0xb19d3dfc in ?? ()
#27 0xb19d3ad8 in ?? ()
#28 0xb7f091b2 in opbx_get_termcols () from /usr/lib/openpbx.org/libopenpbx.so.0
#29 0x08065b80 in ?? ()
#30 0xb7eb0b7c in __JCR_LIST__ () from /lib/tls/libpthread.so.0
#31 0xffffffdc in ?? ()
#32 0xb7f7f084 in ast_yyerror () from /usr/lib/openpbx.org/libopenpbx.so.0
#33 0xb7e06ae2 in __libc_thread_freeres () from /lib/tls/libc.so.6
(gdb) bt full
#0  0xb7d6be84 in mallopt () from /lib/tls/libc.so.6
No symbol table info available.
#1  0xb7d6adcb in free () from /lib/tls/libc.so.6
No symbol table info available.
#2  0xb66e61ce in parse_sip_options () from /usr/lib/openpbx.org/modules/chan_sip.so
No symbol table info available.
#3  0xb66e6949 in parse_sip_options () from /usr/lib/openpbx.org/modules/chan_sip.so
No symbol table info available.
#4  0xb66e1798 in parse_sip_options () from /usr/lib/openpbx.org/modules/chan_sip.so
No symbol table info available.
#5  0xb7f09c3b in opbx_sched_runq () from /usr/lib/openpbx.org/libopenpbx.so.0
No symbol table info available.
#6  0x4512517e in ?? ()
No symbol table info available.
#7  0x000ca192 in ?? ()
No symbol table info available.
#8  0x00000000 in ?? ()
No symbol table info available.
#9  0x000003e8 in ?? ()
No symbol table info available.
#10 0x0000dac0 in ?? ()
No symbol table info available.
#11 0x00000000 in ?? ()
No symbol table info available.
#12 0x00000000 in ?? ()
No symbol table info available.
#13 0x00000000 in ?? ()
No symbol table info available.
#14 0x000003e8 in ?? ()
No symbol table info available.
#15 0x00101e00 in ?? ()
No symbol table info available.
#16 0xb19d3a94 in ?? ()
No symbol table info available.
#17 0x08065b98 in ?? ()
No symbol table info available.
#18 0x00000000 in ?? ()
No symbol table info available.
#19 0x4512517e in ?? ()
No symbol table info available.
#20 0x000ca192 in ?? ()
No symbol table info available.
#21 0x4512517e in ?? ()
---Type <return> to continue, or q <return> to quit---
No symbol table info available.
#22 0x000ca57a in ?? ()
No symbol table info available.
#23 0xb79b1bb0 in ?? ()
No symbol table info available.
#24 0xb7fb5598 in ?? () from /usr/lib/openpbx.org/libopenpbx.so.0
No symbol table info available.
#25 0x08065b80 in ?? ()
No symbol table info available.
#26 0xb19d3dfc in ?? ()
No symbol table info available.
#27 0xb19d3ad8 in ?? ()
No symbol table info available.
#28 0xb7f091b2 in opbx_get_termcols () from /usr/lib/openpbx.org/libopenpbx.so.0
No symbol table info available.
#29 0x08065b80 in ?? ()
No symbol table info available.
#30 0xb7eb0b7c in __JCR_LIST__ () from /lib/tls/libpthread.so.0
No symbol table info available.
#31 0xffffffdc in ?? ()
No symbol table info available.
#32 0xb7f7f084 in ast_yyerror () from /usr/lib/openpbx.org/libopenpbx.so.0
No symbol table info available.
#33 0xb7e06ae2 in __libc_thread_freeres () from /lib/tls/libc.so.6
No symbol table info available.