[Asterisk-Users] SIP hanging

[Skuse, Phil]

I too am having this problem reported by Frank Hoonhout. Asterisk runs fine
for a few minutes and then stops accepting new calls. (I have a standalone
server with SIP phones and I'm not doing any external registration).

Asterisk CVS-04/07/03-09:28:50

0x420e0037 in poll () from /lib/i686/libc.so.6
(gdb) info threads
  16 Thread 14351 (LWP 7258)  0x420e187e in select () from
/lib/i686/libc.so.6
  15 Thread 16398 (LWP 7371)  0x420292e5 in sigsuspend ()
   from /lib/i686/libc.so.6
  14 Thread 12301 (LWP 7256)  0x420e0037 in poll () from /lib/i686/libc.so.6
  13 Thread 11276 (LWP 7255)  0x420b4b31 in nanosleep ()
   from /lib/i686/libc.so.6
  12 Thread 10251 (LWP 7254)  0x420b4b31 in nanosleep ()
   from /lib/i686/libc.so.6
  11 Thread 9226 (LWP 7253)  0x420dabd4 in open () from /lib/i686/libc.so.6
  10 Thread 8201 (LWP 7252)  0x420e187e in select () from
/lib/i686/libc.so.6
  9 Thread 7176 (LWP 7251)  0x420e0037 in poll () from /lib/i686/libc.so.6
  8 Thread 6151 (LWP 7248)  0x420292e5 in sigsuspend ()
   from /lib/i686/libc.so.6
  7 Thread 5126 (LWP 7247)  0x420e0037 in poll () from /lib/i686/libc.so.6
  6 Thread 4101 (LWP 7246)  0x420e187e in select () from /lib/i686/libc.so.6
  5 Thread 3076 (LWP 7236)  0x420e187e in select () from /lib/i686/libc.so.6
  4 Thread 2051 (LWP 7235)  0x420e7fc2 in accept () from /lib/i686/libc.so.6
  3 Thread 1026 (LWP 7234)  0x420e7fc2 in accept () from /lib/i686/libc.so.6
  2 Thread 2049 (LWP 7233)  0x420e0037 in poll () from /lib/i686/libc.so.6
  1 Thread 1024 (LWP 7232)  0x420daca4 in read () from /lib/i686/libc.so.6
(gdb) thread 8
[Switching to thread 8 (Thread 6151 (LWP 7248))]#0  0x420292e5 in sigsuspend
()
   from /lib/i686/libc.so.6
(gdb) bt
#0  0x420292e5 in sigsuspend () from /lib/i686/libc.so.6
#1  0x4003d679 in __pthread_wait_for_restart_signal ()
   from /lib/i686/libpthread.so.0
#2  0x4003f4b9 in __pthread_alt_lock () from /lib/i686/libpthread.so.0
#3  0x4003c116 in pthread_mutex_lock () from /lib/i686/libpthread.so.0
#4  0x41ac3af5 in __sip_destroy (p=0x80e30a8, lockowner=1) at chan_sip.c:758
#5  0x41ad0834 in handle_request (p=0x80e30a8, req=0x4393425c,
sin=0x4393424c)
    at chan_sip.c:793
#6  0x41ad1139 in sipsock_read (id=0x80d5f30, fd=11, events=1, ignore=0x0)
    at chan_sip.c:4383
#7  0x08050c6e in ast_io_wait (ioc=0x80d8e48, howlong=1000) at io.c:268
#8  0x41ad14ef in do_monitor (data=0x0) at chan_sip.c:4474
#9  0x4003afef in pthread_start_thread () from /lib/i686/libpthread.so.0
(gdb) thread 15
[Switching to thread 15 (Thread 16398 (LWP 7371))]#0  0x420292e5 in
sigsuspend
    () from /lib/i686/libc.so.6
(gdb) bt
#0  0x420292e5 in sigsuspend () from /lib/i686/libc.so.6
#1  0x4003d679 in __pthread_wait_for_restart_signal ()
   from /lib/i686/libpthread.so.0
#2  0x4003f4b9 in __pthread_alt_lock () from /lib/i686/libpthread.so.0
#3  0x4003c116 in pthread_mutex_lock () from /lib/i686/libpthread.so.0
#4  0x08056029 in ast_hangup (chan=0x80e5ce8) at channel.c:601
#5  0x08060bd8 in ast_pbx_run (c=0x80e5ce8) at pbx.c:1731
#6  0x08065ddf in pbx_thread (data=0x80e5ce8) at pbx.c:1743
#7  0x4003afef in pthread_start_thread () from /lib/i686/libpthread.so.0

-----Original Message-----
From: Mark Spencer [mailto:markster at digium.com]
Sent: 12 April 2003 02:12
To: asterisk-users at lists.digium.com
Subject: RE: [Asterisk-Users] Outgoing SIP Registration Fixed


> But now *, seems to be hung up after a few hours.  It no longer responds
to
> certain commands.  SIP devices are no longer communicating with *, even
> though they are listed in the "sip show peers" command.

Try running gdb on the stuck process like this:

ps ax | grep asterisk

the lowest level pid, say it's 123, do this:

gdb asterisk 123
.
.
.
(gdb) info threads

Look for a thread that is *not* in poll() or select().  Highly suspect
functions are sigsuspend() or being somewhere that *isn't* a blocking
function call.  Then switch to that thread like this:

(gdb) thread 17
(gdb) bt

and look at the backtrace.  Even if it's not helpful for you, you can
e-mail me the backtrace of any suspicious thread (off-list) and I can look
and try to determine what the problem might be.

Mark

_______________________________________________
Asterisk-Users mailing list
Asterisk-Users at lists.digium.com
http://lists.digium.com/mailman/listinfo/asterisk-users