#0  0xffffe410 in __kernel_vsyscall ()
(gdb) bt
#0  0xffffe410 in __kernel_vsyscall ()
#1  0xb7cbf7d0 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0xb7cc0ea3 in *__GI_abort () at abort.c:88
#3  0xb7cf4f8b in __libc_message (do_abort=2, fmt=0xb7da6478 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#4  0xb7cfa911 in malloc_printerr (action=2, str=0xb7da64a4 "munmap_chunk(): invalid pointer", ptr=<value optimized out>) at malloc.c:5616
#5  0xb67125dd in gtalk_alloc (client=0x81f9180, us=0x8200ece "google_out@gmail.com/asterisk27846BE6", them=0x822cee8 "contact1@gmail.com/Talk.v961301304D",
    sid=0x8200f43 "2774316811") at chan_gtalk.c:880
#6  0xb67134f7 in gtalk_newcall (client=0x81f9180, pak=0x822c8a4) at chan_gtalk.c:1060
#7  0xb6715174 in gtalk_parser (data=0x81f9180, pak=0x822c8a4) at chan_gtalk.c:1521
#8  0xb7a0e7b9 in iks_filter_packet (f=0x81a3c28, pak=0x822c8a4) at filter.c:154
#9  0xb7ba7362 in aji_act_hook (data=0x81a4ef8, type=1, node=0x8200dc4) at res_jabber.c:650
#10 0xb7a0c994 in tagHook (data=0x81a49fc, name=0x81e1f60 "iq", atts=0x0, type=1) at stream.c:275
#11 0xb7a0aa10 in iks_parse (prs=0x81a4a3c,
    data=0x81b67a8 "8000\" bitrate=\"13300\"/><payload-type id=\"106\" name=\"telephone-event\" clockrate=\"8000\"/></description><transport xmlns=\"http://www.google.com/transport/p2p\"/></session></iq>", len=172, finish=0) at sax.c:323
#12 0xb7a0c338 in iks_recv (prs=0x81a4a3c, timeout=1) at stream.c:465
#13 0xb7bab027 in aji_recv_loop (data=0x81a4ef8) at res_jabber.c:1446
#14 0x080fcc21 in dummy_start (data=0x81a4b38) at utils.c:538
#15 0xb7f2734b in start_thread (arg=0xb7919ba0) at pthread_create.c:306
#16 0xb7d5465e in clone () from /lib/libc.so.6