-- Executing [s@macro-faxreceive:3] RxFAX("Zap/3-1", "/var/spool/asterisk/fax/1204204477.0.tif") in new stack
    -- Channel 0/3, span 1 got hangup request, cause 16
                                                                                
Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread -1209599088 (LWP 4228)]
0x00c6f1a9 in _int_malloc () from /lib/libc.so.6
(gdb) bt full
#0  0x00c6f1a9 in _int_malloc () from /lib/libc.so.6
No symbol table info available.
#1  0x00c702ee in malloc () from /lib/libc.so.6
No symbol table info available.
#2  0x080727a9 in __ast_alloc_region (size=358, which=FUNC_REALLOC,
    file=0x81500b3 "utils.c", lineno=1309,
    func=0x81502e0 "ast_dynamic_str_thread_build_va", cache=0) at astmm.c:102
        reg = (struct ast_region *) 0x0
        ptr = (void *) 0x0
        fence = (unsigned int *) 0x97452a8
        hash = 185
#3  0x08072ae6 in __ast_realloc (ptr=0x9745310, size=358,
    file=0x81500b3 "utils.c", lineno=1309,
    func=0x81502e0 "ast_dynamic_str_thread_build_va") at astmm.c:222
        tmp = (void *) 0xb7e6ad68
        len = 185
#4  0x08102041 in ast_dynamic_str_thread_build_va (buf=0xb7e6ae30, max_len=0,
    ts=0x815e6b8, append=0,
    fmt=0x8147090 "    -- Executing [%s@%s:%d] %s(\"%s\", \"%s\") %s\n",
    ap=0xb7e6ae54 "x%t\t(%t\t\001") at utils.c:1309
        res = 353
        offset = 0
        __PRETTY_FUNCTION__ = "ast_dynamic_str_thread_build_va"
#5  0x080b3eb8 in ast_verbose (
    fmt=0x8147090 "    -- Executing [%s@%s:%d] %s(\"%s\", \"%s\") %s\n")
    at logger.c:886
        __res = 135678848
        v = (struct verb *) 0x97e28c0
        buf = (struct ast_dynamic_str *) 0x9745310
        res = -1209610424
        ap = 0xb7e6ae54 "x%t\t(%t\t\001"
        __PRETTY_FUNCTION__ = "ast_verbose"
#6  0x080c2495 in pbx_extension_helper (c=0x97423a8, con=0x0,
    context=0x9742528 "ext-fax", exten=0x9742578 "h", priority=1, label=0x0,
    callerid=0x973fcc0 "xxxxxxxx", action=E_SPAWN) at pbx.c:1835
        tmp = "\033[1;36;40mSystem\033[0;37;40m\00037;40m", '\0' <repeats 46 times>
        tmp2 = "\033[1;35;40mZap/3-1\033[0;37;40m", '\0' <repeats 52 times>
        tmp3 = "\033[1;35;40m/var/lib/asterisk/bin/fax-process.pl --to xxxxxx@xxxx.xxxx.xxx.xx --from xxx@xxxxxx.xxx --subject \"Fax from xxxxxxxx xxxxxxxx\" --attachment fax_xxxxxxxx.pdf --type application/pdf --file /va"...
        e = (struct ast_exten *) 0x97e1c10
        app = (struct ast_app *) 0x9720e20
        res = 158606632
        q = {incstack = {0x0 <repeats 128 times>}, stacklen = 0, status = 5,
  swo = 0x0, data = 0x0, foundcontext = 0x9742528 "ext-fax"}
        passdata = "/var/lib/asterisk/bin/fax-process.pl --to xxxxxx@xxxx.xxxx.xxx.xx --from xxx@xxxxxx.xxx --subject \"Fax from xxxxxxxx xxxxxxxx\" --attachment fax_xxxxxxxx.pdf --type application/pdf --file /var/spool/as"...
        matching_action = 0
        __PRETTY_FUNCTION__ = "pbx_extension_helper"
#7  0x080c3623 in ast_spawn_extension (c=0x97423a8,
    context=0x9742528 "ext-fax", exten=0x9742578 "h", priority=1,
    callerid=0x973fcc0 "xxxxxxxx") at pbx.c:2306
No locals.
#8  0x080c4577 in __ast_pbx_run (c=0x97423a8) at pbx.c:2547
        found = 1
        res = 0
        autoloopflag = 0
        error = 1
        __PRETTY_FUNCTION__ = "__ast_pbx_run"
#9  0x080c48f5 in pbx_thread (data=0x97423a8) at pbx.c:2623
        c = (struct ast_channel *) 0x97423a8
#10 0x0810111b in dummy_start (data=0x973fdd8) at utils.c:852
        __cancel_buf = {__cancel_jmp_buf = {{__cancel_jmp_buf = {14209012, 0,
        -1209599088, -1209601080, -1599070215, 524745842},
      __mask_was_saved = 0}}, __pad = {0xb7e6f480, 0x0, 0x0, 0x0}}
        __cancel_routine = (void (*)(void *)) 0x806a18c <ast_unregister_thread>
        __cancel_arg = (void *) 0xb7e6fb90
        not_first_call = 0
        ret = (void *) 0x0
        a = {start_routine = 0x80c48de <pbx_thread>, data = 0x97423a8,
  name = 0x9743380 "pbx_thread", ' ' <repeats 11 times>, "started at [ 2647] pbx.c ast_pbx_start()"}
        __PRETTY_FUNCTION__ = "dummy_start"
#11 0x00d7e45b in start_thread () from /lib/libpthread.so.0
No symbol table info available.
#12 0x00cd624e in clone () from /lib/libc.so.6
No symbol table info available.