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Date: Sun, 18 Mar 2007 04:42:19 +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: <00a701c768bd$f8abe130$2101a8c0@donald>
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Paul Rolland wrote:
> Hello,
> 
> I'm preparing to attach a disk. 
> In the meantime, I've rebuild a 2.6.21-rc4, and got that while booting :
> ...
> ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
> ata1.00: ATA-7: Maxtor 6L250S0, BANC1G10, max UDMA/133
> ata1.00: 490234752 sectors, multi 0: LBA48 NCQ (depth 31/32)
> ata1.00: configured for UDMA/133
> ...
> Adding 2096436k swap on /dev/sde5.  Priority:-1 extents:1 across:2096436k
> Adding 4192956k swap on /dev/sda3.  Priority:-2 extents:1 across:4192956k
> ata1.00: exception Emask 0x2 SAct 0x7fffffc3 SErr 0x0 action 0x2 frozen
> ata1.00: (spurious completions during NCQ issue=0x0 SAct=0x7fffffc3
> FIS=004040a1:00000020)
> ata1.00: cmd 60/01:00:52:eb:ff/00:00:09:00:00/40 tag 0 cdb 0x0 data 512 in
>          res 40/00:08:53:eb:ff/00:00:09:00:00/40 Emask 0x2 (HSM violation)

If you leave it alone, does libata turn off NCQ and boot continues?

-- 
tejun