netdev - Re: NMI lockup, 2.6.26 release

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Message-ID: <20080722213603.GA3026@ami.dom.local>
Date:	Tue, 22 Jul 2008 23:36:03 +0200
From:	Jarek Poplawski <jarkao2@...il.com>
To:	denys@...p.net.lb
Cc:	netdev@...r.kernel.org
Subject: Re: NMI lockup, 2.6.26 release

On Tue, Jul 22, 2008 at 11:46:36PM +0300, denys@...p.net.lb wrote:
> First patch - probably not related. Netconsole is on e100.
> Second patch looks reasonable, because there is external interface (it is router) and e1000e there, with enabled TSO. Maybe some scanning tools doing connect to SSH and... BOOM.. i will try to patch it, thanks a lot!

On the other hand, it seems the corruption of skbs fixed by this
second patch should probably show in some other places...

I wonder if you tried to run this without netconsole (or maybe
netconsole on another dev/driver) or without this NMI watchdog,
and similar lockups still happened?

Jarek P.

> 
> On Tuesday 22 July 2008, Jarek Poplawski wrote:
> > Jarek Poplawski wrote, On 07/22/2008 10:13 PM:
> > 
> > > denys@...p.net.lb wrote, On 07/22/2008 08:42 PM:
> > > 
> > >> workload: ifb shapers, HTB, nat, 1 e1000, 3 e100 (heavily used only two e100)
> > >>
> > > 
> > > 
> > > Maybe it's unconnected but I'd recommend to try this fresh patch for
> > > possible problems with e1000e vs. netconsole:
> > > 
> > > http://permalink.gmane.org/gmane.linux.network/100581
> >  
> > 
> > ...and if you have TSO enabled, here is another "maybe unconnected"
> > recommendation:
> > 
> > http://permalink.gmane.org/gmane.linux.network/99585
> > 
> > Jarek P.
> > 
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> 
> 
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