[root@juliet tmp]# gdb asterisk core.31211
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This GDB was configured as "i386-redhat-linux-gnu"...Using host libthread_db lib
rary "/lib/tls/libthread_db.so.1".

Core was generated by `/usr/sbin/asterisk -vvvg -c'.
Program terminated with signal 11, Segmentation fault.

[snip]

#0  0x080797e7 in channel_find_locked (prev=0x9550f90,
    name=0x1ed7b80 "SIP/5605", namelen=8, context=0x0, exten=0x0)
    at channel.c:1001
1001                                    if ((!namelen && strcasecmp(c->name, nam
e)) ||
(gdb) bt full
#0  0x080797e7 in channel_find_locked (prev=0x9550f90,
    name=0x1ed7b80 "SIP/5605", namelen=8, context=0x0, exten=0x0)
    at channel.c:1001
        done = 0
        msg = 0x812497c "deadlock"
        retries = 0
        c = (struct ast_channel *) 0x0
        __PRETTY_FUNCTION__ = "channel_find_locked"
#1  0x08079a4d in ast_walk_channel_by_name_prefix_locked (chan=0x9550f90,
    name=0x1ed7b80 "SIP/5605", namelen=8) at channel.c:1059
No locals.
#2  0x007d7469 in next_channel (last=0x9550f90, spec=0x1ed7b80 "SIP/5605",
    exten=0x0, context=0x0) at app_chanspy.c:412
        this = (struct ast_channel *) 0x7dacb8
#3  0x007d7b44 in common_exec (chan=0xb7a5f898, flags=0x1ed7de8, volfactor=0,
    fd=0, mygroup=0x0, spec=0x1ed7b80 "SIP/5605", exten=0x0, context=0x0)
    at app_chanspy.c:468
        peer = (struct ast_channel *) 0x9550f90
        prev = (struct ast_channel *) 0x9550f90
        next = (struct ast_channel *) 0x0
        nameprefix = "h \024\bL \000\000Xzí\001ño\n\bh \024\b\000\000\000\000hzí\001\034r\n\bX\232N\t\032\000\000\000¨zí\001.\213\016\bP\232N\tL \000\000»²\023\bs\000\000\000Dz\023\b\207\214\201\000\020|í\001¸¬}\000\000\000\000\000Ðh|\t¨zí\---Type <return> to continue, or q <return> to quit---
001\214\221\016\bèë\024\b\000\000\000\000øzí\001k\221\016\bèë\024\b\000\000\000\000\000\000\000\000U­\016\bèë\024\b\001\000\000\000 ¸x\000øzí\001\000\000\000\000\207\214\201\000Ðh|\tÐh|\t\200Â\212\003\003\000\000\000øzí\001o{\a\b\020ù¥·\220\236í\0018{í\001°ñ\a\b\020ù¥·\002\000\000\000"...
        peer_name = "spy-sip\0005605-097cd1f0\000\000\000\fzí\001Ãal\000\230yí\001V\206l\000 ¸x\000\220\202W\t¤\000\000\000 ¸x\000p¸x\000\000\000\000\0008\001\000\000\000\000\000\000\210!\000\000X¸x\000 ¸x\000` \000\000 ¸x\000ðyí\001ãðw\000\005\000\000\000\000Pû·X¸x\000P\233B\t \233x\000Ìyí\001Ë\al\000P\233B\t\000Pû·\216\000\000\000\220~í\001ô\237x\000P\233B\t\000\000\000\000ðyí\001r\024l\000P\233B\t\000Pû·\216\000\000\000 \000\000\000ô\237x\000k\000\000\000P \000\000\bzí\001¢hk\000"...
        zero_volume = 0 '\0'
        waitms = 5000
        res = 0
        ptr = 0x1ed7938 "5605-097cd1f0"
        num = 0
#4  0x007d7fba in chanspy_exec (chan=0xb7a5f898, data=0x1ed7b80)
    at app_chanspy.c:626
        u = (struct ast_module_user *) 0x95db978
        options = 0x1ed7b89 "qw"
        spec = 0x1ed7b80 "SIP/5605"
        argv = {0x1ed7b80 "SIP/5605", 0x1ed7b89 "qw"}
        mygroup = 0x0
---Type <return> to continue, or q <return> to quit---
        recbase = 0x0
        fd = 0
        flags = {flags = 33}
        oldwf = 4
        argc = 2
        volfactor = 0
        res = 0
        __PRETTY_FUNCTION__ = "chanspy_exec"
#5  0x080b3534 in pbx_exec (c=0xb7a5f898, app=0x9465698, data=0x1edc000)
    at pbx.c:506
        res = 32341648
        saved_c_appl = 0x0
        saved_c_data = 0x0
#6  0x080b6639 in pbx_extension_helper (c=0xb7a5f898, con=0x0,
    context=0xb7a5fa18 "AgentMonitor", exten=0xb7a5fa68 "chanspy", priority=2,
    label=0x0, callerid=0xb7a3c288 "5738", action=E_SPAWN) at pbx.c:1793
        e = (struct ast_exten *) 0x955a440
        app = (struct ast_app *) 0x9465698
        res = 8
        q = {incstack = {0x0 <repeats 128 times>}, stacklen = 0, status = 5,
  swo = 0x0, data = 0x0, foundcontext = 0xb7a5fa18 "AgentMonitor"}
        passdata = "SIP/5605|qw", '\0' <repeats 8180 times>
        matching_action = 0
---Type <return> to continue, or q <return> to quit---
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#7  0x080b76fb in ast_spawn_extension (c=0xb7a5f898,
    context=0xb7a5fa18 "AgentMonitor", exten=0xb7a5fa68 "chanspy", priority=2,
    callerid=0xb7a3c288 "5738") at pbx.c:2248
No locals.
#8  0x080b7be9 in __ast_pbx_run (c=0xb7a5f898) at pbx.c:2348
        dst_exten = "Q\000n\000Aãl\000hµX\tÀÁë\000\000\000\000\000°ëí\001øãí\001X¸x\000 ¸x\000 \000\000\000 ¸x\000Pãí\001ãðw\000Aãl\000\000\000\000LX¸x\000\000\000\000\000°ëí\001øãí\001ÄUl\000Local/5741@AgentQ\000n\000Aãl\000\000\000\000L ¸x\000\000\000\000\000°ëí\001\b\000\000\000\000\000\000\000P\000\000\000(¸x\000\002\000\000\000\020\000\000\000Q\000n\0000Ll\000hãí\000\f\000\000\000ô\237x\000\f\000\000\000 ¸x\000\230ãí\001ö|l\000 ¸x\000\f\000\000\000\030\000\000\000\200\r\002\000\f\000\000\000"...
        pos = 0
        digit = 0
        found = 1
        res = 0
        autoloopflag = 0
        error = 0
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#9  0x080b88e6 in pbx_thread (data=0xb7a5f898) at pbx.c:2561
        c = (struct ast_channel *) 0xb7a5f898
#10 0x080ef919 in dummy_start (data=0xb7a51690) at utils.c:545
---Type <return> to continue, or q <return> to quit---
        _buffer = {__routine = 0x80681cd <ast_unregister_thread>,
  __arg = 0x1edebb0, __canceltype = 32367704, __prev = 0x0}
        ret = (void *) 0x788664
        a = {start_routine = 0x80b88cf <pbx_thread>, data = 0xb7a5f898,
  name = 0xb7a0d390 "pbx_thread", ' ' <repeats 11 times>, "started at [ 2585] pbx.c ast_pbx_start()"}
#11 0x00817341 in start_thread () from /lib/tls/libpthread.so.0
No symbol table info available.
#12 0x0072b6fe in clone () from /lib/tls/libc.so.6
No symbol table info available.
(gdb)