netdev - Re: NMI lockup, 2.6.26 release

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Message-Id: <200807241756.43595.denys@visp.net.lb>
Date:	Thu, 24 Jul 2008 17:56:43 +0300
From:	denys@...p.net.lb
To:	denys@...p.net.lb
Cc:	Jarek Poplawski <jarkao2@...il.com>, netdev@...r.kernel.org
Subject: Re: NMI lockup, 2.6.26 release

Nothing yet. Still waiting, in 6 hours i will have "peak time".
But yesterday with same settings(without patch) it crashed 3 times.

It is Core2Duo E6750 CPU, clocksource is TSC.
TSC synchronization is always passed. HPET is available, so in case... i can try it too.
It was crashing with nmi_watchdog=1(at least it brings crash message) and without it (hard lockup).
Fishy point is ifb, but i have few hundreds of NAS servers with ifb + htb 
(but sure not 300-400 Mbps like on this host) and i check weekly log on all of them - none of them crashed.

So it is or hardware specific (but it is crashing always in same point), 
even maybe memory corruption, it is not a server-grade equipment, but it crashes always in same place, same way.
I have running MCE, so if there is thermal events - it must catch it.
But sure there is large list of errata for this hardware :-)

On Thursday 24 July 2008, denys@...p.net.lb wrote:
> I dont have any problem to restart :-)
> Build system and restart (over kexec) is automated..
> Rebooting now.

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