[asterisk-bugs] [Asterisk 0014723]: ERROR[5003]: channel.c:2043 __ast_read: ast_read() called with no recorded file descriptor.

[Asterisk Bug Tracker]

The following issue requires your FEEDBACK. 
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http://bugs.digium.com/view.php?id=14723 
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Reported By:                seadweller
Assigned To:                mmichelson
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Project:                    Asterisk
Issue ID:                   14723
Category:                   Core/Channels
Reproducibility:            always
Severity:                   block
Priority:                   normal
Status:                     feedback
Target Version:             1.4.25
Asterisk Version:           1.4.24 
Regression:                 No 
SVN Branch (only for SVN checkouts, not tarball releases): N/A 
SVN Revision (number only!):  
Request Review:              
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Date Submitted:             2009-03-23 08:27 CDT
Last Modified:              2009-04-13 14:18 CDT
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Summary:                    ERROR[5003]: channel.c:2043 __ast_read: ast_read()
called with no recorded file descriptor.
Description: 
Performed an upgrade from 1.4.22 to 1.4.24 running on CentOs 4.  Used the
same "slim" configuration that I used in 1.4.22, which worked fine.

Calls are processing, but connecting to the console gets the following:

[Mar 23 13:08:05] ERROR[5003]: channel.c:2043 __ast_read: ast_read()
called with no recorded file descriptor.
[Mar 23 13:08:05] ERROR[5003]: channel.c:2043 __ast_read: ast_read()
called with no recorded file descriptor.

This repeats continuously.  If I issue a show channels, I get some output
and it seems to stop the ERROR messages, though it seems the "show
channels" does not complete.  You can get the CLI command and * will still
be trying to spit out a few channels below it.

The system load is also very high (2.38 with 50 or so concurrent calls),
though CPU usage is low... it must be coming from somewhere else. 
Typically this load under 1.4.22 would show perhaps a 0.2 or 0.3 load.


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Relationships       ID      Summary
----------------------------------------------------------------------
has duplicate       0014866 100% cpu problem with channel hangup
has duplicate       0014868 I have 100% CPU usage with a few calls
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 (0103177) mmichelson (administrator) - 2009-04-13 14:18
 http://bugs.digium.com/view.php?id=14723#c103177 
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One thing I just thought about was the fact that the natural assumption
here is that the error message seen is directly correlated to the high CPU
usage.

@falves11: Since you say this happens fairly quickly, would you mind doing
a small experiment? First try using Asterisk 1.4 rev 179536. See if the
problem occurs. Next, change to revision 179741. See if the problem occurs
there, too. This may help to narrow the range of revisions at which this
problem occurs. Thanks!

Also thanks to those who have reported problems with the patch I posted.
Apparently it is not correct as is and needs additional work. 

Issue History 
Date Modified    Username       Field                    Change               
====================================================================== 
2009-04-13 14:18 mmichelson     Note Added: 0103177                          
2009-04-13 14:18 mmichelson     Status                   ready for testing =>
feedback
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