netdev - Re: skge- "soft lockup on CPU#0" with mtu=9000 (2.6.20.1 + web100 patch)

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Message-ID: <Pine.LNX.4.64.0703081509110.28233@potato.cts.ucla.edu>
Date:	Thu, 8 Mar 2007 15:13:16 -0800 (PST)
From:	Chris Stromsoe <cbs@....ucla.edu>
To:	Jay Vosburgh <fubar@...ibm.com>
cc:	Stephen Hemminger <shemminger@...ux-foundation.org>,
	netdev@...r.kernel.org
Subject: Re: skge- "soft lockup on CPU#0" with mtu=9000 (2.6.20.1 + web100
 patch) 

On Thu, 8 Mar 2007, Jay Vosburgh wrote:

> 	If you're running active-backup and not using the ARP monitor 
> (arp_interval), then I'm not aware of any possible locking problems in 
> bonding for the kernel version you reference (2.6.20.1).

I'm not using arp_interval.

On Thu, 8 Mar 2007, Jay Vosburgh wrote:
> Chris Stromsoe <cbs@....ucla.edu> wrote:
>
>> 1) ip link set mtu 9000 eth2  <-- eth2 is no longer responsive
>>    ip link set mtu 1500 eth2  <-- eth2 remains unresponsive
>>
>> 2) ifup eth2
>>    ifdown eth2
>>
>>    perl -pi -e 's/eth2/eth3/' /etc/network/interfaces
>>
>>    ifup eth3   <--  locks up here
>
> 	This would seem to suggest a problem with skge itself, although 
> there might be some other interaction with bonding that causes the 
> problems for that case.

In both of the above mentioned cases, I was not using bonding.  That was 
with the skge driver only.


-Chris
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