linux-kernel - Re: [git patches] libata fixes

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Message-Id: <1269634672.8534.2.camel@mj>
Date:	Fri, 26 Mar 2010 16:17:52 -0400
From:	Pavel Roskin <proski@....org>
To:	Tejun Heo <tj@...nel.org>
Cc:	Jeff Garzik <jeff@...zik.org>,
	Andrew Morton <akpm@...ux-foundation.org>,
	Linus Torvalds <torvalds@...ux-foundation.org>,
	linux-ide@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>
Subject: Re: [git patches] libata fixes

On Fri, 2010-03-26 at 01:21 +0900, Tejun Heo wrote:
> On 03/24/2010 03:06 AM, Pavel Roskin wrote:
> > By all means, please push this patch to all stable kernels, or more
> > money will be wasted on hard drives ;-)
> 
> Oh, the original patch which caused the problem never saw the light of
> the day before 2.6.34-rc1 so there's no stable kernel to push the
> patch into.

It looks like I'm still getting "clearing spurious IRQ".  In most cases,
it's not followed by anything, but in one case, there was a lost
interrupt followed by a link reset.

[ 5030.881191] ata2: clearing spurious IRQ
[ 5060.950036] ata2: lost interrupt (Status 0x50)
[ 5060.950055] ata2.01: exception Emask 0x0 SAct 0x0 SErr 0x0 action 0x6
frozen
[ 5060.950059] ata2.01: failed command: WRITE DMA
[ 5060.950066] ata2.01: cmd ca/00:08:b7:11:a9/00:00:00:00:00/f0 tag 0
dma 4096 out
[ 5060.950068]          res 40/00:00:00:4f:c2/00:00:00:00:00/10 Emask
0x4 (timeout)
[ 5060.950071] ata2.01: status: { DRDY }
[ 5060.950080] ata2: soft resetting link
[ 5061.160268] ata2.01: configured for UDMA/133
[ 5061.160275] ata2.01: device reported invalid CHS sector 0
[ 5061.160283] ata2: EH complete
[80540.010652] ata2: clearing spurious IRQ

That last line is apparently a separate event.

-- 
Regards,
Pavel Roskin
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