(gdb) bt
#0  0x0000000000000001 in ?? ()
#1  0x000000000043e435 in __ast_read (chan=0x7d1f00, dropaudio=0) at channel.c:2209
#2  0x00000000004401d3 in ast_read (chan=0x7d1f00) at channel.c:2571
#3  0x000000000043aaa2 in ast_safe_sleep_conditional (chan=0x7d1f00, ms=155, cond=0, data=0x0) at channel.c:1160
#4  0x000000000043aafb in ast_safe_sleep (chan=0x7d1f00, ms=500) at channel.c:1172
#5  0x00000000004891d7 in pbx_builtin_wait (chan=0x7d1f00, data=0x4055e3c0) at pbx.c:5562
#6  0x000000000047c21f in pbx_exec (c=0x7d1f00, app=0x7920e0, data=0x4055e3c0) at pbx.c:532
#7  0x00002afb03007b18 in realtime_exec (chan=0x7d1f00, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, callerid=0x7d3680 "100", data=0x2afaf002f989 "")
   from /usr/lib/asterisk/modules/pbx_realtime.so
#8  0x000000000047fb5e in pbx_extension_helper (c=0x7d1f00, con=0x0, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, label=0x0, callerid=0x7d3680 "100", action=E_SPAWN)
    at pbx.c:1845
#9  0x0000000000480c5c in ast_spawn_extension (c=0x7d1f00, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, callerid=0x7d3680 "100") at pbx.c:2289
#10 0x00000000004811b4 in __ast_pbx_run (c=0x7d1f00) at pbx.c:2389
#11 0x0000000000482155 in ast_pbx_run (c=0x7d1f00) at pbx.c:2645
#12 0x00002afaf563a71c in sccp_pbx_startchannel (data=<value optimized out>) at sccp_pbx.c:831
#13 0x00000000004c09fe in dummy_start (data=0x7d39c0) at utils.c:806
#14 0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#15 0x00002afaecffafbd in clone () from /lib64/libc.so.6
(gdb) bt full
#0  0x0000000000000001 in ?? ()
No symbol table info available.
#1  0x000000000043e435 in __ast_read (chan=0x7d1f00, dropaudio=0) at channel.c:2209
        f = (struct ast_frame *) 0x0
        base = (struct ast_channel *) 0x0
        blah = 0
        prestate = 6
        __PRETTY_FUNCTION__ = "__ast_read"
#2  0x00000000004401d3 in ast_read (chan=0x7d1f00) at channel.c:2571
No locals.
#3  0x000000000043aaa2 in ast_safe_sleep_conditional (chan=0x7d1f00, ms=155, cond=0, data=0x0) at channel.c:1160
        f = (struct ast_frame *) 0x1
#4  0x000000000043aafb in ast_safe_sleep (chan=0x7d1f00, ms=500) at channel.c:1172
No locals.
#5  0x00000000004891d7 in pbx_builtin_wait (chan=0x7d1f00, data=0x4055e3c0) at pbx.c:5562
        s = 0.5
        ms = 500
#6  0x000000000047c21f in pbx_exec (c=0x7d1f00, app=0x7920e0, data=0x4055e3c0) at pbx.c:532
        res = 0
        saved_c_appl = 0x0
        saved_c_data = 0x0
#7  0x00002afb03007b18 in realtime_exec (chan=0x7d1f00, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, callerid=0x7d3680 "100", data=0x2afaf002f989 "")
   from /usr/lib/asterisk/modules/pbx_realtime.so
        appdata = "0.5", '\0' <repeats 508 times>
        tmp1 = "P!}\000\000\000\000\000\000\037}\000\000\000\000\000PS\003ðú*\000\000`\032}\000\000\000\000\000ðçU@\000\000\000\000æÏG\000\000\000\000\000`µ{\000\000\000\000\0009g\000\003û*", '\0' <repeats 17 times>
        tmp2 = "\000\000\000\000\000\000\000\000 *}\000\000\000\000\0000çU@\000\000\000\000\230u\000\003û*\000\000\220R\001ðú*\000\000ÌÂG\000\001\000\000\000\211ù\002ðú*\000\000\2006}\000\000\000\000\0000çU@\002\000\000\000 !}\000\000\000\000"
        tmp3 = '\0' <repeats 16 times>, "2", '\0' <repeats 23 times>, "`\032}", '\0' <repeats 13 times>, "ó|\000\003û*\000\000\000\000\000\000\000\000\000\000\031\000\000\000\000\000\000\000ÐæU@\000\000\000\000Au\000\003û*\000\000\0005Híú*\000\000PæU@\000\000\000\000\211ù\002ðú*\000\000`i'íú*\000\000ÐæU@\000\000\000\000\000\037}\000\000\000\000\000ñ\035}\000\000\000\000\0000\035}\000\000\000\000\000\220R\001ðú*\000\000\034Ûùìú*\000\000 !}\000\000\000\000\000P!}\000\000\000\000\000P!}\000\000\000\000\000r}\000\003û*\000\000`\032}\000\000\000\000\000\001\000\000\000\000\000"...
        a = (struct ast_app *) 0x7920e0
        tmp = 0x4055e300 "0.5"
        app = 0x4055e320 "Wait"
        v = (struct ast_variable *) 0x0
        res = -1
        var = (struct ast_variable *) 0x7d1c60
        __PRETTY_FUNCTION__ = "realtime_exec"
#8  0x000000000047fb5e in pbx_extension_helper (c=0x7d1f00, con=0x0, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, label=0x0, callerid=0x7d3680 "100", action=E_SPAWN)
    at pbx.c:1845
        e = (struct ast_exten *) 0x0
        app = (struct ast_app *) 0x7d1f00
        res = 8199665
        q = {incstack = {0x0 <repeats 128 times>}, stacklen = 0, status = 2, swo = 0x2afb03208660, data = 0x2afaf002f989 "", foundcontext = 0x7d2150 "internal"}
        passdata = '\0' <repeats 6664 times>, "ôgùìú*\000\000\000\000\000\000\000\000\000\000\200*V@\000\000\000\000U\233·\000û*\000\000U\233·\000û*\000\000\005\000\000\000\000\000\000\000;Ööìú*", '\0' <repeats 18 times>, "@*V@", '\0' <repeats 12 times>, "`%V@", '\0' <repeats 28 times>, "ð+V@\000\000\000\000K\233·\000û*\000\000\220*V@", '\0' <repeats 20 times>, "\020+V@\000\000\000\000\211\031P\000\000\000\000\000\211\031P\000\000\000\000\000\004\000\000\000\000\000\000\000;Ööìú*\000\000\000\000\000\000\000\000\000\000H)V@\000\000\000\000Ð*V@", '\0' <repeats 12 times>...
        matching_action = 0
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#9  0x0000000000480c5c in ast_spawn_extension (c=0x7d1f00, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, callerid=0x7d3680 "100") at pbx.c:2289
No locals.
#10 0x00000000004811b4 in __ast_pbx_run (c=0x7d1f00) at pbx.c:2389
        dst_exten = "\220R\001ð\001", '\0' <repeats 11 times>, "¸L\001ðú*\000\000 /V@\000\000\000\000`I\001ðú*\000\000\2237bõú*\000\000ð.V@\000\000\000\000ð.V@", '\0' <repeats 12 times>, "\0357}\000\000\000\000\000íÙO\000\000\000\000\000\2006}\000\000\000\000\000`/V@\000\000\000\000éSE\000\000\000\000\000SCCP/100\00000000001", '\0' <repeats 31 times>, "ÈK@\000\000\000\000\000H\234Dìú*\000\000ð.V@\000\000\000\000ÿÿÿÿ\000\000\000\000íÙO\000\000\000\000\000\001\000\000\000\000\000\000\000\220/V@\000\000\000\000\000\037}\000\000\000\000\000"...
        pos = 0
        digit = 0
        found = 1
        res = 0
        autoloopflag = 0
        error = 0
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#11 0x0000000000482155 in ast_pbx_run (c=0x7d1f00) at pbx.c:2645
        res = AST_PBX_SUCCESS
#12 0x00002afaf563a71c in sccp_pbx_startchannel (data=<value optimized out>) at sccp_pbx.c:831
        chan = (struct ast_channel *) 0x7d1f00
        c = (sccp_channel_t *) 0x7d1d30
        l = (sccp_line_t *) 0x2afaf0016b60
        d = (sccp_device_t *) 0x2afaf0015290
        res_exten = 0 '\0'
---Type <return> to continue, or q <return> to quit---
        res_timeout = 1 '\001'
        __PRETTY_FUNCTION__ = "sccp_pbx_startchannel"
#13 0x00000000004c09fe in dummy_start (data=0x7d39c0) at utils.c:806
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {0, 8150844111553422576, 0, 1079392592, 0, 4096, 8150844111578588400, 8150703596608152816}, __mask_was_saved = 0}}, __pad = {
    0x405631d0, 0x0, 0x2afaed271888, 0x2afaed2718a0}}
        __cancel_routine = (void (*)(void *)) 0x425ab4 <ast_unregister_thread>
        __cancel_arg = (void *) 0x40563950
        not_first_call = 0
        ret = (void *) 0x2afaed2718a0
        a = {start_routine = 0x2afaf563a15d <sccp_pbx_startchannel>, data = 0x7d1f00, name = 0x7d39e0 "sccp_pbx_startchannel started at [  466] sccp_channel.c sccp_channel_newcall()"}
#14 0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
No symbol table info available.
#15 0x00002afaecffafbd in clone () from /lib64/libc.so.6
No symbol table info available.
(gdb) thread apply all bt

Thread 24 (process 1731):
#0  0x00002afaec663c0b in read () from /lib64/libpthread.so.0
#1  0x00000000004ca9da in read_char (el=0x766c60, cp=0x7fffbe87a596 "") at read.c:296
#2  0x00000000004cab04 in el_getc (el=0x766c60, cp=0x7fffbe87a596 "") at read.c:347
#3  0x00000000004ca884 in read_getcmd (el=0x766c60, cmdnum=0x7fffbe87a597 "", ch=0x7fffbe87a596 "") at read.c:243
#4  0x00000000004cad92 in el_gets (el=0x766c60, nread=0x7fffbe87a8ec) at read.c:443
#5  0x000000000042d5c8 in main (argc=3, argv=0x7fffbe87abb8) at asterisk.c:2976
#6  0x00002afaecf47ab4 in __libc_start_main () from /lib64/libc.so.6
#7  0x00000000004134e9 in free ()
#8  0x00007fffbe87aba8 in ?? ()
#9  0x0000000000000000 in ?? ()

Thread 23 (process 1759):
#0  0x00002afaecff22e6 in poll () from /lib64/libc.so.6
#1  0x0000000000427834 in listener (unused=0x0) at asterisk.c:980
#2  0x00000000004c09fe in dummy_start (data=0x769970) at utils.c:806
#3  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#4  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 22 (process 1761):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00000000004555a8 in ast_cond_wait (cond=0x747f00, t=0x73dd50) at /usr/src/asterisk/asterisk-1.4/include/asterisk/lock.h:642
#2  0x0000000000455586 in do_devstate_changes (data=0x0) at devicestate.c:367
#3  0x00000000004c09fe in dummy_start (data=0x790ef0) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 21 (process 1762):
#0  0x00002afaecff4462 in select () from /lib64/libc.so.6
#1  0x00002afaef914d16 in ast_select (nfds=0, rfds=0x400b2f00, wfds=0x0, efds=0x400b2e80, tvp=0x0) from /usr/lib/asterisk/modules/res_features.so
#2  0x00002afaef914cd6 in do_parking_thread (ignore=0x0) from /usr/lib/asterisk/modules/res_features.so
#3  0x00000000004c09fe in dummy_start (data=0x7988a0) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 20 (process 1763):
#0  0x00002afaecff4462 in select () from /lib64/libc.so.6
#1  0x00002afaf563de55 in sccp_socket_thread (ignore=<value optimized out>) at sccp_socket.c:283
#2  0x00000000004c09fe in dummy_start (data=0x2afaf00154a0) at utils.c:806
#3  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#4  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 19 (process 1765):
#0  0x00002afaecff4462 in select () from /lib64/libc.so.6
#1  0x00002afafb197b7a in ast_select (nfds=0, rfds=0x4012afa0, wfds=0x0, efds=0x4012af20, tvp=0x0) from /usr/lib/asterisk/modules/chan_phone.so
#2  0x00002afafb197993 in do_monitor (data=0x0) from /usr/lib/asterisk/modules/chan_phone.so
#3  0x00000000004c09fe in dummy_start (data=0x2afaf0046950) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 18 (process 1766):
#0  0x00002afaecff22e6 in poll () from /lib64/libc.so.6
#1  0x00002afafb7bf051 in do_monitor (data=0x0) from /usr/lib/asterisk/modules/chan_zap.so
#2  0x00000000004c09fe in dummy_start (data=0x2afaf0049260) at utils.c:806
#3  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#4  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 17 (process 1767):
#0  0x00002afaecff22e6 in poll () from /lib64/libc.so.6
#1  0x000000000046a781 in ast_io_wait (ioc=0x7a7250, howlong=1000) at io.c:266
#2  0x00002afb0032a78a in do_monitor (data=0x0) from /usr/lib/asterisk/modules/chan_sip.so
#3  0x00000000004c09fe in dummy_start (data=0x7abf10) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 16 (process 1768):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb019b49fe in ast_cond_wait (cond=0x2afb01bc0988, t=0x2afb01bc09b8) from /usr/lib/asterisk/modules/app_meetme.so
#2  0x00002afb019b5d87 in sla_thread (data=0x0) from /usr/lib/asterisk/modules/app_meetme.so
---Type <return> to continue, or q <return> to quit---
#3  0x00000000004c09fe in dummy_start (data=0x7b0a80) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 15 (process 1769):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c0358, t=0x7c0330) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7bf270) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7be7e0) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 14 (process 1770):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c14a8, t=0x7c1480) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c03c0) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7be960) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 13 (process 1771):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c25f8, t=0x7c25d0) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c1510) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7bed10) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 12 (process 1772):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c3748, t=0x7c3720) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c2660) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7beec0) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 11 (process 1773):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c4898, t=0x7c4870) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c37b0) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7bf070) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 10 (process 1774):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c5b08, t=0x7c5ae0) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c4a20) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7bf100) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 9 (process 1775):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c6de8, t=0x7c6dc0) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c5d00) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7c6e50) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 8 (process 1776):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c80e8, t=0x7c80c0) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c7000) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7c8150) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 7 (process 1777):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
---Type <return> to continue, or q <return> to quit---
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7c93e8, t=0x7c93c0) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c8300) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7c9450) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 6 (process 1778):
#0  0x00002afaec661486 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238bc8 in ast_cond_wait (cond=0x7ca6e8, t=0x7ca6c0) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323897d in iax2_process_thread (data=0x7c9600) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7ca750) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 5 (process 1779):
#0  0x00002afaec661677 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00002afb03238ba9 in ast_cond_timedwait (cond=0x2afb03457ba0, t=0x2afb03454fa0, abstime=0x40473010) from /usr/lib/asterisk/modules/chan_iax2.so
#2  0x00002afb0323a5a1 in sched_thread (ignore=0x0) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7ca900) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 4 (process 1780):
#0  0x00002afaecff22e6 in poll () from /lib64/libc.so.6
#1  0x000000000046a781 in ast_io_wait (ioc=0x7bc2c0, howlong=-1) at io.c:266
#2  0x00002afb0323a8c7 in network_thread (ignore=0x0) from /usr/lib/asterisk/modules/chan_iax2.so
#3  0x00000000004c09fe in dummy_start (data=0x7caab0) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 3 (process 1781):
#0  0x00002afaecfc1581 in nanosleep () from /lib64/libc.so.6
#1  0x00002afaecfc13a4 in sleep () from /lib64/libc.so.6
#2  0x00002afb05486d9c in scan_thread (unused=0x0) from /usr/lib/asterisk/modules/pbx_spool.so
#3  0x00000000004c09fe in dummy_start (data=0x7d0e50) at utils.c:806
#4  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#5  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 2 (process 1782):
#0  0x00002afaecff22e6 in poll () from /lib64/libc.so.6
#1  0x000000000042beb0 in monitor_sig_flags (unused=0x0) at asterisk.c:2520
#2  0x00000000004c09fe in dummy_start (data=0x7d1860) at utils.c:806
#3  0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#4  0x00002afaecffafbd in clone () from /lib64/libc.so.6

Thread 1 (process 1812):
#0  0x0000000000000001 in ?? ()
#1  0x000000000043e435 in __ast_read (chan=0x7d1f00, dropaudio=0) at channel.c:2209
#2  0x00000000004401d3 in ast_read (chan=0x7d1f00) at channel.c:2571
#3  0x000000000043aaa2 in ast_safe_sleep_conditional (chan=0x7d1f00, ms=155, cond=0, data=0x0) at channel.c:1160
#4  0x000000000043aafb in ast_safe_sleep (chan=0x7d1f00, ms=500) at channel.c:1172
#5  0x00000000004891d7 in pbx_builtin_wait (chan=0x7d1f00, data=0x4055e3c0) at pbx.c:5562
#6  0x000000000047c21f in pbx_exec (c=0x7d1f00, app=0x7920e0, data=0x4055e3c0) at pbx.c:532
#7  0x00002afb03007b18 in realtime_exec (chan=0x7d1f00, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, callerid=0x7d3680 "100", data=0x2afaf002f989 "")
   from /usr/lib/asterisk/modules/pbx_realtime.so
#8  0x000000000047fb5e in pbx_extension_helper (c=0x7d1f00, con=0x0, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, label=0x0, callerid=0x7d3680 "100", action=E_SPAWN)
    at pbx.c:1845
#9  0x0000000000480c5c in ast_spawn_extension (c=0x7d1f00, context=0x7d2150 "internal", exten=0x7d21a0 "103", priority=2, callerid=0x7d3680 "100") at pbx.c:2289
#10 0x00000000004811b4 in __ast_pbx_run (c=0x7d1f00) at pbx.c:2389
#11 0x0000000000482155 in ast_pbx_run (c=0x7d1f00) at pbx.c:2645
#12 0x00002afaf563a71c in sccp_pbx_startchannel (data=<value optimized out>) at sccp_pbx.c:831
#13 0x00000000004c09fe in dummy_start (data=0x7d39c0) at utils.c:806
#14 0x00002afaec65d2f7 in start_thread () from /lib64/libpthread.so.0
#15 0x00002afaecffafbd in clone () from /lib64/libc.so.6
(gdb)