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

From: Matt Ayres
Date: Thu May 18 2006 - 20:39:32 EST

James Morris wrote:
On Thu, 18 May 2006, Matt Ayres wrote:

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.


Thank you for the assistance. Which parameters do you suggest changing?
TSO/flow control off?

Yep, anything.

Ok, "ethtool -K eth0 rx off tx off sg off tso off" should have turned it all off.

iptables -L -v just shows 2 rules per Virtual Machine for accounting. This
averages about 100 rules in the FORWARD chain. Example:

Do you know if the problem starts appearing after a certain number of hosts?

No... I have some servers that are running just 2.6.16-xen (no bugfix patches) for 30 days without a problem, some of these have rulesets larger than the ones that crash daily. I'd estimate this affects 90% of my servers, just some reboot daily and others can make it to 7-10 days.


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