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Re: [Xen-devel] Re: Panic in ipt_do_table with

To: Matt Ayres <matta@xxxxxxxxxxxx>
Subject: Re: [Xen-devel] Re: Panic in ipt_do_table with
From: James Morris <jmorris@xxxxxxxxx>
Date: Tue, 16 May 2006 11:28:28 -0400 (EDT)
Cc: "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Netfilter Development Mailinglist <netfilter-devel@xxxxxxxxxxxxxxxxxxx>, Patrick McHardy <kaber@xxxxxxxxx>, Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>
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On Tue, 16 May 2006, Matt Ayres wrote:

> > > My ruleset is pretty bland.  2 rules in the raw table to tell the system
> > > to
> > > only track my forwarded ports, 2 rules in the nat table for forwarding
> > > (intercepting) 2 ports, and then in the FORWARD tables 2 rules per VM to
> > > just
> > > account traffic.
> > 
> > Can you try using a different NIC?
> > 
> This happens on 30 different hosts.  Using the same kernel I get varying
> uptime of "hasn't crashed since the upgrade to 2.6.16" to "crashes every day".
> All are Tyan S2882D boards w/ integrated Tigon3.  The trace I posted to this
> thread indicate tg3, but in many other traces I have the trace doesn't include
> any driver calls.  They all panic in ipt_do_table.  I would have pasted the
> others, but I didn't save the System.map for either of them and they are all
> pretty similar.

I'm trying to suggest eliminating this driver & possible interaction with 
Xen network changes as a cause.  If you can find a different type of NIC 
to plug in and use, or even try and change all of the params for the tg3 
with ethtool, it'll help.

James Morris

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