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Message-ID: <45FC493D.1060006@gmail.com>
Date: Sun, 18 Mar 2007 05:02:05 +0900
From: Tejun Heo <htejun@gmail.com>
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To: rol@as2917.net
CC: "'Linus Torvalds'" <torvalds@linux-foundation.org>,
       "'Jeff Garzik'" <jeff@garzik.org>, "'Alan Cox'" <alan@redhat.com>,
       "'Andrew Morton'" <akpm@linux-foundation.org>,
       linux-ide@vger.kernel.org, "'LKML'" <linux-kernel@vger.kernel.org>,
       "'Eric D. Mudama'" <edmudama@gmail.com>
Subject: Re: [git patches] libata fixes
References: <00b801c768cd$172dcb50$2101a8c0@donald>
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Paul Rolland wrote:
>> If you leave it alone, does libata turn off NCQ and boot continues?
> 
> boot continues, but I can't tell anything about libata turning of NCQ...
> I've had a bunch of them at some while while compiling some kernel, so it
> was quite some time after booting.
> 
> Is there a message I can check for that would indicate NCQ being turned
> off ?

The kernel says that NCQ is turned off due to excessive errors.  If your
HSM violation is intermittent, it might not trigger tho.

-- 
tejun