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Summary:ASTERISK-21892: Segfault after fax
Reporter:Aleksandr Gordeev (axonaro)Labels:
Date Opened:2013-06-10 02:00:47Date Closed:2013-07-16 14:49:22
Priority:CriticalRegression?
Status:Closed/CompleteComponents:
Versions:11.2.1 Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) backtrace_20130610.txt
Description:{code}#0  0x00000002 in ?? ()
#1  0xb67507d6 in spandsp_fax_write (s=0x100650a4, f=0x14f97390) at res_fax_spandsp.c:701
#2  0xb678687b in generic_fax_exec (chan=0x150ca27c, details=0xfdea6e4, reserved=0x100650a4, token=0x0) at res_fax.c:1498
#3  0xb678f9b2 in sendfax_exec (chan=0x150ca27c, data=0xb46c0c5c "/tmp/1370844606_100001_100002.tif,f") at res_fax.c:2443
#4  0x0815704f in pbx_exec (c=0x150ca27c, app=0x955bef8, data=0xb46c0c5c "/tmp/1370844606_100001_100002.tif,f") at pbx.c:1589
#5  0x0815ffae in pbx_extension_helper (c=0x150ca27c, con=0x0, context=0x150cae30 "www-autooutgoing", exten=0x150cae80 "send", priority=3, label=0x0,
   callerid=0x1033e798 "100001", action=E_SPAWN, found=0xb46c3080, combined_find_spawn=1) at pbx.c:4665
#6  0x08162f5a in ast_spawn_extension (c=0x150ca27c, context=0x150cae30 "www-autooutgoing", exten=0x150cae80 "send", priority=3, callerid=0x1033e798 "100001",
   found=0xb46c3080, combined_find_spawn=1) at pbx.c:5781
#7  0x081645ca in __ast_pbx_run (c=0x150ca27c, args=0x0) at pbx.c:6256
#8  0x08166022 in ast_pbx_run_args (c=0x150ca27c, args=0x0) at pbx.c:6634
#9  0x08166048 in ast_pbx_run (c=0x150ca27c) at pbx.c:6643
#10 0x081701fe in ast_pbx_outgoing_exten (type=0x1073f0e4 "Local", cap=0xfc31ef0, addr=0x1073f0ec "call@www-autooutgoing", timeout=20000, context=0x1073f10a "www-autooutgoing",
   exten=0x1073f11e "send", priority=1, reason=0xb46c3300, synchronous=2, cid_num=0x1073f0d6 "100001", cid_name=0x824b14e "", vars=0xfc11f78, account=0x824b14e "",
   channel=0x0, early_media=0) at pbx.c:10156
#11 0xb67674b8 in attempt_thread (data=0xfd08418) at pbx_spool.c:382
#12 0x081b8735 in dummy_start (data=0xfacc170) at utils.c:1028
#13 0xb7401955 in start_thread () from /lib/i686/cmov/libpthread.so.0
#14 0xb782858e in clone () from /lib/i686/cmov/libc.so.6
{code}
Comments:By: Matt Jordan (mjordan) 2013-06-10 11:59:39.444-0500

This appears to be crashing on something in the frame that was passed in to res_fax_spandsp. If you have the core file and/or can reproduce this, can you inspect the contents of the frame?

That would be either:
* {{frame}} in stack frame 2. In particular, the data.ptr and samples attributes of that struct are what's of importance.
* {{f}} in stack frame 1 (which is the same thing).

Getting all attributes of {{frame}} would be helpful, since it will tell us what frame caused the seg fault. If the frame is fine, this may be an error in {{libspandsp}}.
By: Rusty Newton (rnewton) 2013-06-25 16:48:35.793-0500

Alexandr can you provide the additional information?
By: Rusty Newton (rnewton) 2013-07-16 14:49:05.782-0500

Suspended due to lack of activity. Please request a bug marshal in #asterisk-bugs on the IRC network irc.freenode.net to reopen the issue should you have the additional information requested.  Further information can be found at http://www.asterisk.org/developers/bug-guidelines