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

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.
>> Hi,
>> 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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