linux-kernel - Re: Possibly SATA related freeze killed networking and RAID

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Message-ID: <20071121004545.512ad3ea@the-village.bc.nu>
Date:	Wed, 21 Nov 2007 00:45:45 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	noah <noah123@...il.com>
Cc:	"Linux Kernel Mailing List" <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org
Subject: Re: Possibly SATA related freeze killed networking and RAID

> I've had other freezes before but this was the first time I was able
> to see what was actually going on.
> IRQ 21 appears to be shared between sata_nv and ethernet.
> 
> Does this mean my hardware/BIOS is broken somehow?

Not neccessarily. It could a bug in one of the drivers using IRQ 21
(sata_nv or the nvidia ethernet), it could be another inactive device, or
it could be a hardware funny.

Nvidia stuff can be quite hard to diagnose as we have no documentation
but we can try. The first question is whether it is network or disk
triggered - seeing if heavy loads to one or the other trigger the problem
might be a first plan.

Alan
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