(gdb) bt full
#0  0x00007f27d503f625 in raise () from /lib64/libc.so.6
No symbol table info available.
#1  0x00007f27d5040e05 in abort () from /lib64/libc.so.6
No symbol table info available.
#2  0x0000000000426adc in sigsegv (num=11) at /usr/src/master/accel-ppp-code/accel-pppd/main.c:203
        cmd = "gdb -x cmd-1457977136 /usr/local/sbin/accel-pppd 23236 > dump-1457977136", '\000' <repeats 456 times>, " \331c\326'\177\000\000\f\000\000\000\000\000\000\000\020\331c\326'\177\000\000\001", '\000' <repeats 39 times>, "Иc\326'\177\000\000\000@\000\000\000\000\000\000\020", '\000' <repeats 15 times>, "\020\000\000\000\000\000\000\000H\002\000\000\252\240\345VИc\326'\177\000\000\006\020B\000\000\000\000\000H\002\000\000\000\000\000\000\b\335c\326'\177\000\000H\002\000\000\"\000\000\000\240\331c\326'\177\000\000\260\353c\326'\177\000\000 \027B"...
        fname = "cmd-1457977136", '\000' <repeats 113 times>
        exec_file = "/usr/local/sbin/accel-pppd", '\000' <repeats 4069 times>
        lim = {rlim_cur = 18446744073709551615, rlim_max = 18446744073709551615}
        pid = 0
        status = 0
#3  <signal handler called>
No symbol table info available.
#4  0x00007f27d384c633 in forward (net=0x7f27cc000d30, ifindex=109, pkt=0x7f27cc01a788, len=60)
    at /usr/src/master/accel-ppp-code/accel-pppd/ctrl/pppoe/disc.c:177
        n = 0xbff1
        t = 0x7f27cc0021f8
        p = 0x7f27cc03ae78
        parent = 0xc021
        r = 0
        ethhdr = 0x7f27cc01a78c
#5  0x00007f27d384ca8b in disc_read (h=0x7f27cc000d60) at /usr/src/master/accel-ppp-code/accel-pppd/ctrl/pppoe/disc.c:296
        net = 0x7f27cc000d30
        pack = 0x7f27cc01a788 "@"
        ethhdr = 0x7f27cc01a78c
        hdr = 0x7f27cc01a79a
        n = 60
        src = {sll_family = 17, sll_protocol = 25480, sll_ifindex = 109, sll_hatype = 1, sll_pkttype = 3 '\003', sll_halen = 6 '\006',
          sll_addr = "\000\340R\201#+c", <incomplete sequence \326>}
        slen = 18
#6  0x00007f27d624a42c in ctx_thread (ctx=0x7f27cc003db8) at /usr/src/master/accel-ppp-code/accel-pppd/triton/triton.c:217
        h = 0x7f27cc000bf8
        t = 0x7f27d6249c40
        call = 0x7f27d644f550
        tt = 23158560
        events = 1
#7  0x00007f27d624a1e9 in triton_thread (thread=0x1615f10) at /usr/src/master/accel-ppp-code/accel-pppd/triton/triton.c:159
        set = {__val = {516, 0 <repeats 15 times>}}
        sig = 10
---Type <return> to continue, or q <return> to quit---
        need_free = 0
#8  0x00007f27d5e28a51 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#9  0x00007f27d50f593d in clone () from /lib64/libc.so.6
No symbol table info available.