[asterisk-bugs] [Asterisk 0018511]: Asterisk hangs with no calls being able to go in or out, and the console does not respond to commands

[Asterisk Bug Tracker]

A NOTE has been added to this issue. 
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https://issues.asterisk.org/view.php?id=18511 
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Reported By:                jonascph
Assigned To:                
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Project:                    Asterisk
Issue ID:                   18511
Category:                   Channels/chan_iax2
Reproducibility:            random
Severity:                   block
Priority:                   normal
Status:                     acknowledged
Asterisk Version:           SVN 
JIRA:                        
Regression:                 No 
Reviewboard Link:            
SVN Branch (only for SVN checkouts, not tarball releases):  trunk 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2010-12-21 09:42 CST
Last Modified:              2011-01-04 16:22 CST
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Summary:                    Asterisk hangs with no calls being able to go in or
out, and the console does not respond to commands
Description: 
I'm not sure if we are seeing one or two different issues.

We've had stability issues with all versions of 1.8 we've tried. Those
include 1.8rc2, 1.8 final,a trunk checkout some weeks after 1.8 final and
latest 1.8.2rc1 all had the same issue or similar issues (They all
froze/crashed)

So far i do not have any type of debug information to show, but im
counting on being able to get some next time it happens. It's so far
happened about once every 6-9 days, and strangely enough it typically
doesnt happen for over a week and then happens 2-3 times on the same day.
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Relationships       ID      Summary
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related to          0017521 Brief lagginess on IAX2 channels is fatal
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 (0130179) jcovert (reporter) - 2011-01-04 16:22
 https://issues.asterisk.org/view.php?id=18511#c130179 
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I have captured data from a hang, and have attached two files.

These are the console messages leading up to the hang:

[Jan  4 16:00:38] NOTICE[15828]: chan_iax2.c:10512 socket_process:
Rejected connect attempt from 63.210.44.150, requested/capability
'0x400000000000000 (nothing)'/'0x7fff000000000000 (nothing)' incompatible
with our capability '0x80e (gsm|ulaw|alaw|g726)'.

    -- Accepting UNAUTHENTICATED call from 66.54.140.46:
       > requested format = ulaw,
       > requested prefs = (ulaw|alaw|gsm|g729),
       > actual format = ulaw,
       > host prefs = (ulaw|alaw|g726|gsm),
       > priority = caller

I'm not sure how long we were hung before I noticed it; at approximately
17:45 I picked up a SIP extension and discovered that asterisk was not
responding to it.

I gathered the data, as requested.  When gdb exited and released asterisk,
there was some further activity in the IAX2 channel:

[Jan  4 16:58:11] WARNING[15828]: chan_iax2.c:1123 iax_error_output:
Information element length exceeds message size
[Jan  4 16:58:11] WARNING[15828]: chan_iax2.c:9901 socket_process:
Undecodable frame received from '192.168.0.4'
[Jan  4 16:58:11] WARNING[15828]: chan_iax2.c:1123 iax_error_output:
Information element length exceeds message size
[Jan  4 16:58:11] WARNING[15828]: chan_iax2.c:9901 socket_process:
Undecodable frame received from '192.168.0.4'
    -- Registered IAX2 'jrclaptop' (AUTHENTICATED) at 192.168.0.4:47569
    -- Registered IAX2 'jsolathome' (AUTHENTICATED) at
69.183.230.139:4569
    -- Registered IAX2 'x29' (AUTHENTICATED) at 192.168.0.17:4569
    -- Registered IAX2 'x38' (AUTHENTICATED) at 79.240.220.121:4569

But the SIP phones were not able to register.  I turned on SIP debugging,
and got no response at all, other than the "sip debugging enabled."  I have
dozens of SIP peers, so there was certainly activity at the interface.

I turned on IAX2 debugging, and there was quite a bit of activity.  I
attempted a call from and iaxy station, and the call was not accepted
properly.  I dialled 953, but only part of that was received.  The iax
debug output is also supplied.

I issued a core restart now, and the system is up again.  At least one of
my consulting clients was unable to get through to me during the outage. 
Lost $$$.

I hope that this helps resolve whatever is ailing the IAX2 channel, which
has become nearly unusable since somewhere during the 1.6 timeframe.

/john 

Issue History 
Date Modified    Username       Field                    Change               
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2011-01-04 16:22 jcovert        Note Added: 0130179                          
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