[asterisk-users] Help with gdb bt full results

[Scott Higginbotham]

I just had a situation where asterisk was running fine for several days,
then suddenly stopped.  Upon trying to restart asterisk, it kept seg
faulting at:

 [res_agi.so] => (Asterisk Gateway Interface (AGI))
  == Registered application 'DeadAGI'
  == Registered application 'EAGI'
  == Registered application 'AGI'
 [res_features.so] => (Call Features Resource)
  == Parsing '/etc/asterisk/features.conf': Found
  == Remapping feature Attended Transfer (atxfer) to sequence '7'
  == Registered Feature 'nway-start'
  == Mapping Feature 'nway-start' to app 'Macro' with code '*0'
  == Registered Feature 'nway-inv'
  == Mapping Feature 'nway-inv' to app 'Macro' with code '**'
  == Registered Feature 'nway-noinv'
  == Mapping Feature 'nway-noinv' to app 'Macro' with code '*#'
    -- Registered extension context 'parkedcalls'
    -- Added extension '5400' priority 1 to parkedcalls
  == Registered application 'ParkedCall'
  == Registered application 'Park'
  == Manager registered action ParkedCalls
 [res_crypto.so] => (Cryptographic Digital Signatures)
Segmentation fault (core dumped)

Looking at the core file that was left, I get the following when doing a 'bt
full':

#0  0xb7caf824 in ERR_load_BIO_strings () from /usr/lib/libcrypto.so.0
No symbol table info available.
#1  0x00000010 in ?? ()
No symbol table info available.
#2  0xb7d30460 in BN_version () from /usr/lib/libcrypto.so.0
No symbol table info available.
#3  0xb7d28818 in ?? () from /usr/lib/libcrypto.so.0
No symbol table info available.
#4  0xb7cbbcca in ERR_load_crypto_strings () from /usr/lib/libcrypto.so.0
No symbol table info available.
#5  0xb7cbbc50 in ERR_add_error_data () from /usr/lib/libcrypto.so.0
No symbol table info available.
#6  0xb790a398 in ?? () from /usr/lib/asterisk/modules/res_crypto.so
No symbol table info available.
#7  0xb7908989 in load_module () at res_crypto.c:571
No locals.
#8  0x0805c63d in __load_resource (resource_name=0x8159088 "", cfg=0xd) at
loader.c:413
        fn = "/usr/lib/asterisk/modules/res_crypto.so\000o\000so", '\0'
<repeats 211 times>
        errors = 0
        res = 1
        m = (struct module *) 0xd
        flags = 0
        val = 0x1 <Address 0x1 out of bounds>
        key = (unsigned char *) 0x0
        tmp = "\033[33;40mCryptographic Digital
Signatures\033[0;37;40m\000·wxÚ·k\004\000\000àò\023\b\021Å\020\b\000på·Àvå·\
000kå·"
        __PRETTY_FUNCTION__ = "__load_resource"
#9  0x0805ce46 in load_modules (preload_only=-1209698624) at loader.c:553
        mods = (DIR *) 0x81561f0
        d = (struct dirent *) 0xb7e576c0
        x = 0
        cfg = (struct ast_config *) 0x813f100
        v = (struct ast_variable *) 0xa5
        tmp =
"\033[1;37;40mres_crypto.so\033[0;37;40m\000m\0000m\000\000\000\000\000\000Ð
\004\000\000Ð\003\022\b\034\000\000\000ØÛó¿iG\t\bÐ\003\022\b\020\034\t\bÀ:\0
20\bè:\020\b"
        __PRETTY_FUNCTION__ = "load_modules"
#10 0x080bfbcc in main (argc=2, argv=0xbff3dc64) at asterisk.c:2360
        gr = (struct group *) 0x87f
        c = 1
        filename = "/root/.asterisk_history", '\0' <repeats 56 times>
        hostname = "test-asterisk", '\0' <repeats 46 times>
        tmp = "Á\n\002\000à\n\002\000 5\023\b\005\000\000\000 \000\000\000
\210å·\000på· \210å· 5\023\b8Ûó¿ð\020Ú·
\210å·ç\221ð·\b0\023\b(5\023\bà\n\002\000 \000\000\000\033\000\000\000
5\023\b(5\023\b"
        xarg = 0x0
        x = 0
        f = (FILE *) 0x87f
        sigs = {__val = {134238211, 0 <repeats 31 times>}}
        num = -1074538240
        is_child_of_nonroot = 1
        buf = 0x87f <Address 0x87f out of bounds>
        runuser = 0x0
        rungroup = 0x0
        __PRETTY_FUNCTION__ = "main"
(gdb)

Finally, after rolling back a version previous and rebooting the system,
asterisk came back to life.  I would however, like to find out what went
wrong and what I can do to fix it.  Any insight is appreciated.

Scott Higginbotham
Systems / Network Operations Manager
215.259.2185 or 1.800.835.5710 ext 2185
scotth at voicenet.com