DNS exiting

[Mark.Andrews at nominum.com]

> Sorry - I was in too much of a hurry to get this out...
> 
> The machine is an IBM Aptiva, P100, with 64Mb RAM, IDE 1Gb HD, Running
> FreeBSD 2.2.5 - Running ISC Bind 8.2.1

	The current BIND version is BIND 8.2.2-P5.
> 
> There weren't any messages in /var/log/messages pertaining to the
> shutdown.

	For a segmentation fault I would not expect any.
	What does a stack backtrace produce?  Yes, we are interested in
	bugs in old versions as they may still exist in the current
	version.  We need to at least eliminate known bugs.

	Mark
> 
> 
> >     >> It seems like once a week, named dies: pid82 (named), uid0:
> >     >> exited on signal 11
> >
> >     >> and today I got a core dump. The TTL is set to 86400 (default,
> >     >> I think), but it shouldn't crap out like this, should it? It's
> >     >> only been doing this for the last three weeks, or so. I restart
> >     >> the process and everything runs fine for the week.
> >
> >     >> Appreciate any info...
> >
> > It would have helped if you'd give information like the OS platform or
> > what version of name server code you were running and, more
> > importantly,what messages were printed in the logs prior to the name
> > server croaking.
> >
> > The name server does not make a habit of dying as a general
> > rule. Signal number 11 is a segmentation violation. This is usually
> > generated by an illegal memory reference - like following an incorrect
> > pointer. In general the name server doesn't do this. Can you correlate
> > the crash to some other DNS activity - like something sending a
> > specific query or malformed packet to the name server? Or could it
> > just be that your name server is hitting an OS default on the amount
> > of VM that a process can use?
> >
> > If you're not running up to date name server code, upgrade. I doubt if
> > anyone cares if there *might* be a pointer bug in obsolete DNS code.
> 
> --
> ^^^^^^^^^^^^^^^^^^^^^^^
> J.B. LaRue - I.T. Manager
> jb.larue at mila.com
> 888.340.4347
> ^^^^^^^^^^^^^^^^^^^^^^^
--
Mark Andrews, Nominum Inc. / Internet Software Consortium
1 Seymour St., Dundas Valley, NSW 2117, Australia
PHONE: +61 2 9871 4742                 INTERNET: Mark.Andrews at nominum.com