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

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Message-ID: <20071126075517.GA4141@ucw.cz>
Date:	Mon, 26 Nov 2007 07:55:18 +0000
From:	Pavel Machek <pavel@....cz>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Phillip Susi <psusi@....rr.com>, Tejun Heo <htejun@...il.com>,
	noah <noah123@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	linux-ide@...r.kernel.org
Subject: Re: Possibly SATA related freeze killed networking and RAID

On Fri 2007-11-30 13:13:44, Alan Cox wrote:
> > Why does a single spurious interrupt cause it to be shut down?  I can 
> 
> It doesn't.
> 
> > see if the interrupt is stuck on and keeps interrupting constantly, but 
> > if it's just the occasional spurious interrupt, why not just ignore it 
> > and move on?
> 
> The interrupt is usually level triggered so it continues to create
> interrupts until you silence it. The thresholds are about 10,000
> interrupt events and on newer kernels we also reset the count if we don't
> see any for a while. That works for most stuff except the thinkpad
> bluetooth problem.

Which is confirmed hw problem now, btw.
						Pavel
-- 
(english) http://www.livejournal.com/~pavelmachek
(cesky, pictures) http://atrey.karlin.mff.cuni.cz/~pavel/picture/horses/blog.html
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