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SubjectRe: 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
> http://marc.info/?l=linux-ide&m=122724081603679&w=2
> http://bbs.archlinux.org/viewtopic.php?id=86454
>
> 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
http://bugzilla.kernel.org/show_bug.cgi?id=14314
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


Thanks,
Johannes


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