linux-kernel - Re: Kernel 2.6.23.9 / P35 Chipset + WD 750GB Drives (reset port)

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Date:	Mon, 10 Dec 2007 17:23:39 +0900
From:	Tejun Heo <htejun@...il.com>
To:	Justin Piszcz <jpiszcz@...idpixels.com>
CC:	linux-kernel@...r.kernel.org, linux-raid@...r.kernel.org,
	linux-ide@...r.kernel.org, apiszcz@...arrain.com
Subject: Re: Kernel 2.6.23.9 / P35 Chipset + WD 750GB Drives (reset port)

Justin Piszcz wrote:
> The badblocks did not do anything; however, when I built a software raid
> 5 and the performed a dd:
> 
> /usr/bin/time dd if=/dev/zero of=fill_disk bs=1M
> 
> [42332.936615] ata5.00: exception Emask 0x2 SAct 0x7000 SErr 0x0 action
> 0x2 frozen
> [42332.936706] ata5.00: spurious completions during NCQ issue=0x0
> SAct=0x7000 FIS=004040a1:00000800
> 
> Next test, I will turn off NCQ and try to make the problem re-occur.
> If anyone else has any thoughts here..?
> I ran long smart tests on all 3 disks, they all ran successfully.
> 
> Perhaps these drives need to be NCQ BLACKLISTED with the P35 chipset?

That was me being stupid.  Patches for both upstream and -stable
branches are posted.  These will go away.

Thanks.

-- 
tejun
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