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Summary:ASTERISK-10616: asterisk segfault
Reporter:jmls (jmls)Labels:
Date Opened:2007-10-25 04:15:31Date Closed:2007-11-05 14:12:57.000-0600
Priority:CriticalRegression?No
Status:Closed/CompleteComponents:Core/General
Versions:Frequency of
Occurrence
Related
Issues:
Environment:Attachments:( 0) 11084.txt
( 1) coredump.txt
Description:No real description, except that * crashed ;) 50+ users, SIP, ZAP and jabber all in use. bt attached
Comments:By: Joel Vandal (jvandal) 2007-10-25 08:14:57

Just curious, are you using rxfax/txfax (SpanDSP) on Asterisk 1.4 ?

This look like  multiple coredump (ok, not lots of infos in the BT, but 4-5 step in core look same) I've seen in last weeks.
By: Rudy Broersma (tozz) 2007-10-29 08:00:15

We have problems with a crashing asterisk installation too. About 30+ SIP accounts, 1 IAX uplink. We are using rxfax/rxfax.

Attached 'coredump.txt' is the 'bt full' output of gdb.

We're using Asterisk 1.4.13 on Ubuntu Edgy


By: Digium Subversion (svnbot) 2007-11-01 14:29:03

Repository: asterisk
Revision: 88153

U   team/russell/readq-1.4/main/channel.c

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r88153 | russell | 2007-11-01 14:29:02 -0500 (Thu, 01 Nov 2007) | 15 lines

The readq handling in ast_do_masquerade() got broken when the code was converted
to use the AST_LIST macros.  Furthermore, the actual operation performed was
extremely bizarre.  I have re-written the readq handling in ast_do_masquerade()
to make it safe so that the readq list does not get corrupted, as well as
simplified and documented the code. There is also another fix for list handling
for channel datastores.

(related to issues ASTERISK-10489, ASTERISK-10193, ASTERISK-10012, and the 2nd backtrace of ASTERISK-10616)
(potentially related to issues ASTERISK-9737 and ASTERISK-10404)

For users involved with any of the bug reports I have listed, please give this
code a try:

$ svn co http://svn.digium.com/svn/asterisk/team/russell/readq-1.4

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By: Digium Subversion (svnbot) 2007-11-05 14:10:20.000-0600

Repository: asterisk
Revision: 88709

U   branches/1.4/main/channel.c

------------------------------------------------------------------------
r88709 | russell | 2007-11-05 14:10:17 -0600 (Mon, 05 Nov 2007) | 20 lines

Merge the last bit of changes from asterisk/team/russell/readq-1.4

The issue here is that the channel frame readq handling got broken when the
code was converted to use the linked list macros.  It caused corruption of the
list head and tail pointers.  So, I fixed up the usage of the linked list
macros and in passing, simplified the code.  I also documented what the code
is doing, as it was a bit difficult to figure out at first.

This bug showed itself with crashes showing messed up head/tail pointers for
the readq.  However, there are a couple of crashes that aren't quite as obvious,
but I think may be related.  So, if your bug gets closed by this commit, but
you still have a problem, please reopen or create a new bug report.

(closes issue ASTERISK-10489)
(closes issue ASTERISK-10193)
(closes issue ASTERISK-10012)
(closes issue ASTERISK-10616)
(closes issue ASTERISK-9737)
(closes issue ASTERISK-10404)

------------------------------------------------------------------------
By: Digium Subversion (svnbot) 2007-11-05 14:12:57.000-0600

Repository: asterisk
Revision: 88710

_U  trunk/
U   trunk/main/channel.c

------------------------------------------------------------------------
r88710 | russell | 2007-11-05 14:12:56 -0600 (Mon, 05 Nov 2007) | 28 lines

Merged revisions 88709 via svnmerge from
https://origsvn.digium.com/svn/asterisk/branches/1.4

........
r88709 | russell | 2007-11-05 14:11:04 -0600 (Mon, 05 Nov 2007) | 20 lines

Merge the last bit of changes from asterisk/team/russell/readq-1.4

The issue here is that the channel frame readq handling got broken when the
code was converted to use the linked list macros.  It caused corruption of the
list head and tail pointers.  So, I fixed up the usage of the linked list
macros and in passing, simplified the code.  I also documented what the code
is doing, as it was a bit difficult to figure out at first.

This bug showed itself with crashes showing messed up head/tail pointers for
the readq.  However, there are a couple of crashes that aren't quite as obvious,
but I think may be related.  So, if your bug gets closed by this commit, but
you still have a problem, please reopen or create a new bug report.

(closes issue ASTERISK-10489)
(closes issue ASTERISK-10193)
(closes issue ASTERISK-10012)
(closes issue ASTERISK-10616)
(closes issue ASTERISK-9737)
(closes issue ASTERISK-10404)

........

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