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Date:	Sun, 3 Jan 2010 23:11:42 +0100
From:	Johannes Stezenbach <>
To:	Hans Werner <>
Cc:	Tejun Heo <>,,,,,
Subject: Re: Samsung N130 ATA exception after 5min uptime -- Phoenix
 FailSafe issue?

On Wed, Dec 30, 2009 at 01:04:28PM +0100, Hans Werner wrote:
> testing in the Arch Linux Forums has shown that if one applies
> a patch which you posted to the linux-ide ML on 2008-11-21
> then the problem is no longer seen. Instead the kernel log shows
> that a spurious IRQ was cleared.
> [PATCH #upstraem-fixes] ata_piix: detect and clear spurious IRQs
> What's the current status of this patch? Is it safe to use?
> What does it tell us about the Samsung N130/140?

FWIW, I just tested a current git kernel (v2.6.33-rc2-268-g45d28b0)
with Tejun's patch applied on my N130.  The ATA exception and hang is
indeed gone, just "ata1: clearing spurious IRQ" is logged.

I've see Tejun's comment in
and I would like to add that the ATA irq is not shared.

 14:      43885          0   IO-APIC-edge      ata_piix
 15:          0          0   IO-APIC-edge      ata_piix

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