linux-kernel - Re: what is the expected behaviour under extreme high load.

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Message-ID: <20060907192234.GF8793@ucw.cz>
Date:	Thu, 7 Sep 2006 19:22:34 +0000
From:	Pavel Machek <pavel@...e.cz>
To:	Om Narasimhan <om.turyx@...il.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: what is the expected behaviour under extreme high load.

Hi!

> I am running a stress test on my SunFire 4600 (8x2core, 
> 64G) using the
> mem_test available from
> http://carpanta.dc.fi.udc.es/~quintela/memtest. I am 
> using SuSE
> enterprise 9 SP3.

Try running w/o watchdog.

> I am wondering what is the expected behaviour of a 
> machine under
> extreme VM stress.
> When I stress the system to the limits, it practically 
> becomes
> unresponsive. It runs for almost half an hour and then 
> it crashes
> because of a CPU lockup.

> Any pointers from where I can start debugging this issue?

Try vanilla kernel, first...

-- 
Thanks for all the (sleeping) penguins.
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