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[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
Core was generated by `/usr/sbin/asterisk -f start -vvvg -c'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  __GI___libc_free (mem=0x10000000000) at malloc.c:2929
(gdb) bt
#0  __GI___libc_free (mem=0x10000000000) at malloc.c:2929
#1  0x000000000050ca05 in ast_smoother_free (s=<optimized out>) at frame.c:264
#2  0x00007f8ec8b09412 in ast_rtp_write (instance=0x7f8eeb4a9478, frame=0x7f8e30640e20) at res_rtp_asterisk.c:3045
#3  0x00007f8e99d27fcd in sip_write (ast=0x7f8df41d47f8, frame=0x7f8e30640e20) at chan_sip.c:7472
#4  0x00000000004aaa1e in ast_write (chan=0x7f8df41d47f8, fr=fr@entry=0x7f8df44b8a40) at channel.c:5248
#5  0x000000000047a23c in bridge_channel_handle_write (bridge_channel=0x7f8e306baf08) at bridge_channel.c:1948
#6  bridge_channel_wait (bridge_channel=0x7f8e306baf08) at bridge_channel.c:2134
#7  bridge_channel_internal_join (bridge_channel=bridge_channel@entry=0x7f8e306baf08) at bridge_channel.c:2254
#8  0x00000000004639b0 in bridge_channel_ind_thread (data=data@entry=0x7f8e306baf08) at bridge.c:1611
#9  0x00000000005caa8a in dummy_start (data=<optimized out>) at utils.c:1170
#10 0x00007f8f1ec3a182 in start_thread (arg=0x7f8dee663700) at pthread_create.c:312
#11 0x00007f8f203f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
(gdb) bt full
#0  __GI___libc_free (mem=0x10000000000) at malloc.c:2929
        ar_ptr = <optimized out>
        p = <optimized out>
        hook = 0x0
#1  0x000000000050ca05 in ast_smoother_free (s=<optimized out>) at frame.c:264
No locals.
#2  0x00007f8ec8b09412 in ast_rtp_write (instance=0x7f8eeb4a9478, frame=0x7f8e30640e20) at res_rtp_asterisk.c:3045
        rtp = 0x7f8e3218b360
        remote_address = {ss = {ss_family = 2, __ss_align = 0, __ss_padding = '\000' <repeats 111 times>}, len = 16}
        subclass = {id = AST_FORMAT_G729A, fattr = {format_attr = {0 <repeats 64 times>}, rtp_marker_bit = 0 '\000'}}
        codec = 18
        __PRETTY_FUNCTION__ = "ast_rtp_write"
#3  0x00007f8e99d27fcd in sip_write (ast=0x7f8df41d47f8, frame=0x7f8e30640e20) at chan_sip.c:7472
        p = 0x7f8e32b0f9d8
        res = 0
        __PRETTY_FUNCTION__ = "sip_write"
#4  0x00000000004aaa1e in ast_write (chan=0x7f8df41d47f8, fr=fr@entry=0x7f8df44b8a40) at channel.c:5248
        res = -1
        f = 0x7f8e30640e20
        count = <optimized out>
        __PRETTY_FUNCTION__ = "ast_write"
#5  0x000000000047a23c in bridge_channel_handle_write (bridge_channel=0x7f8e306baf08) at bridge_channel.c:1948
        fr = 0x7f8df44b8a40
        nudge = 0 '\000'
        sync_payload = <optimized out>
#6  bridge_channel_wait (bridge_channel=0x7f8e306baf08) at bridge_channel.c:2134
        ms = -1
        outfd = 1541
        chan = 0x0
#7  bridge_channel_internal_join (bridge_channel=bridge_channel@entry=0x7f8e306baf08) at bridge_channel.c:2254
        res = <optimized out>
        __PRETTY_FUNCTION__ = "bridge_channel_internal_join"
#8  0x00000000004639b0 in bridge_channel_ind_thread (data=data@entry=0x7f8e306baf08) at bridge.c:1611
        bridge_channel = 0x7f8e306baf08
        chan = <optimized out>
        __PRETTY_FUNCTION__ = "bridge_channel_ind_thread"
#9  0x00000000005caa8a in dummy_start (data=<optimized out>) at utils.c:1170
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {140251796008192, 2844584762762850966, 0, 0, 140247566793152, 140247566792448, -2854681790114172266, 2844584449953755798}, 
              __mask_was_saved = 0}}, __pad = {0x7f8dee662ef0, 0x0, 0x0, 0x0}}
        __cancel_arg = 0x7f8dee663700
        __not_first_call = <optimized out>
        ret = <optimized out>
        a = {start_routine = 0x463990 <bridge_channel_ind_thread>, data = 0x7f8e306baf08, name = 0x7f8eea7aed00 "bridge_channel_ind_thread started at [ 1682] bridge.c ast_bridge_impart()"}
#10 0x00007f8f1ec3a182 in start_thread (arg=0x7f8dee663700) at pthread_create.c:312
        __res = <optimized out>
        pd = 0x7f8dee663700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {140247566792448, 2844584762762850966, 0, 0, 140247566793152, 140247566792448, -2854681790135143786, -2853097148542750058}, mask_was_saved = 0}}, 
          priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#11 0x00007f8f203f030d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111
No locals.
(gdb) quit