(gdb) bt full
#0  __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51
        set = {__val = {18446744067266837215, 18380497172519822539, 11357407135578037661, 7089336938131513954, 7089336938131513954, 7089336942426481266, 14583431671641719254, 14583431671641719254, 0, 0, 0,
            0, 0, 0, 0, 0}}
        pid = <optimized out>
        tid = <optimized out>
#1  0x00007f3b133f942a in __GI_abort () at abort.c:89
        save_stage = 2
        act = {__sigaction_handler = {sa_handler = 0x0, sa_sigaction = 0x0}, sa_mask = {__val = {0 <repeats 16 times>}}, sa_flags = 0, sa_restorer = 0x7f3b12fa7a4e <ipoe_ctx_switch>}
        sigs = {__val = {32, 0 <repeats 15 times>}}
#2  0x00007f3b14709055 in triton_md_enable_handler (ud=0x7f3b00047558, mode=1) at /opt/accel-ppp-debug/accel-pppd/triton/md.c:195
        h = 0x7f3b0815f008
        r = -1
        events = 0
#3  0x00007f3b12457fbf in rad_auth_sent (req=0x7f3b00047548, res=0) at /opt/accel-ppp-debug/accel-pppd/radius/auth.c:230
No locals.
#4  0x00007f3b12454fdd in __rad_req_send (req=0x7f3b00047548, async=0) at /opt/accel-ppp-debug/accel-pppd/radius/req.c:340
No locals.
#5  0x00007f3b1245b628 in rad_server_req_enter (req=0x7f3b00047548) at /opt/accel-ppp-debug/accel-pppd/radius/serv.c:231
        ts = {tv_sec = 2394653, tv_nsec = 922158610}
        r = 0
        __PRETTY_FUNCTION__ = "rad_server_req_enter"
#6  0x00007f3b12455162 in rad_req_send (req=0x7f3b00047548) at /opt/accel-ppp-debug/accel-pppd/radius/req.c:383
        r = 32571
#7  0x00007f3b124582be in rad_auth_pap (rpd=0x7f3b042fb188, username=0x7f3af8315f30 "10:c3:7b:d6:9e:29", args=0x7f3b10221a90) at /opt/accel-ppp-debug/accel-pppd/radius/auth.c:295
        req = 0x7f3b00047548
        r = 0
        passwd = 0x7f3af8315f30 "10:c3:7b:d6:9e:29"
        epasswd = 0x7f3af8328f30 "\230"
        epasswd_len = 32
#8  0x00007f3b1245f630 in rad_pwdb_check (pwdb=0x7f3b12666580 <pwdb>, ses=0x7f3b041ae290, cb=0x7f3b12fa8958 <auth_result>, cb_arg=0x7f3b041ae1a8, username=0x7f3af8315f30 "10:c3:7b:d6:9e:29", type=49187,
    _args=0x7f3b10221b18) at /opt/accel-ppp-debug/accel-pppd/radius/radius.c:453
        r = 3
        args = {{gp_offset = 48, fp_offset = 48, overflow_arg_area = 0x7f3b10221c00, reg_save_area = 0x7f3b10221b40}}
        chap_type = 323044183
        rpd = 0x7f3b042fb188
        username1 = "\001\200\255\373;\177\000\000\320\342\032\004;\177\000\000\320\342\032\004;\177\000\000\320\342\032\004;\177\000\000\320\342\032\004;\177\000\000\340\342\032\004;\177\000\000\377\377\377\377\377\377\377\377\320\342\032\004;\177\000\000\377\377\377\377\377\377\377\377", '\000' <repeats 40 times>, "\060\032\"\020\000\000\000\000\220\342\032\004;\177\000\000\000\000\061\355\312U\000\000\000\000\000\000\000\000\000\000\370\322\061\355\312U\000\000\000B<\023;\177\000\000\377\377\377\377\377\377\377\377\000\000\000\000\000\000\000\000\220\342\032\004;\177\000\000\250\032\"\020;\177\000\000\377\377\377\377\312U\000\000"...
        __func__ = "rad_pwdb_check"
#9  0x000055caec65d4b0 in pwdb_check (ses=0x7f3b041ae290, cb=0x7f3b12fa8958 <auth_result>, cb_arg=0x7f3b041ae1a8, username=0x7f3af8315f30 "10:c3:7b:d6:9e:29", type=49187)
    at /opt/accel-ppp-debug/accel-pppd/pwdb.c:30
        pwdb = 0x7f3b12666580 <pwdb>
        r = 216
        res = 3
        args = {{gp_offset = 40, fp_offset = 48, overflow_arg_area = 0x7f3b10221c00, reg_save_area = 0x7f3b10221b40}}
#10 0x00007f3b12fa908f in ipoe_session_start (ses=0x7f3b041ae1a8) at /opt/accel-ppp-debug/accel-pppd/ctrl/ipoe/ipoe.c:741
        r = 32571
        passwd = 0x7f3b0816da98 "\230\332\026\b;\177"
        username = 0x7f3af8315f30 "10:c3:7b:d6:9e:29"
---Type <return> to continue, or q <return> to quit---
        pass = 0x7f3af8315f30 "10:c3:7b:d6:9e:29"
        __PRETTY_FUNCTION__ = "ipoe_session_start"
#11 0x00007f3b1470a6da in ctx_thread (ctx=0x7f3b0816da28) at /opt/accel-ppp-debug/accel-pppd/triton/triton.c:273
        h = 0x7f3b131bfa60 <arp_ctx>
        t = 0x7f3b12fa7a4e <ipoe_ctx_switch>
        call = 0x7f3b04152558
        tt = 139891448668600
        events = 32571
#12 0x00007f3b1470a3d4 in triton_thread (thread=0x55caed333ae0) at /opt/accel-ppp-debug/accel-pppd/triton/triton.c:192
        set = {__val = {516, 0 <repeats 15 times>}}
        sig = 10
        need_free = 0
        stack = 0x0
#13 0x00007f3b142e84a4 in start_thread (arg=0x7f3b10222700) at pthread_create.c:456
        __res = <optimized out>
        pd = 0x7f3b10222700
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {139891650471680, -642481064680991543, 140733200994478, 140733200994479, 139891649421312, 3, 676475233750111433, 676484137436861641}, 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"
#14 0x00007f3b134add0f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:97
No locals.