linux-kernel - Re: sata NCQ blacklist entry

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Message-id: <47325400.5060702@shaw.ca>
Date:	Wed, 07 Nov 2007 18:10:40 -0600
From:	Robert Hancock <hancockr@...w.ca>
To:	Tejun Heo <htejun@...il.com>
Cc:	jeff@...zik.org, linux-kernel@...r.kernel.org,
	IDE/ATA development list <linux-ide@...r.kernel.org>
Subject: Re: sata NCQ blacklist entry

Tejun Heo wrote:
> Florian La Roche wrote:
>> Hello all,
>>
>> I've taking email addresses from the last NCQ blacklist changes going
>> into the kernel.
>> This Fujitsu drive also gives me spurious command completions. Detailed
>> output also available at https://bugzilla.redhat.com/show_bug.cgi?id=366181.
>>
>> Let me know if you need more info or anything else.
>>
>> --- drivers/ata/libata-core.c
>> +++ drivers/ata/libata-core.c
>> @@ -4222,6 +4222,7 @@
>>  	{ "WDC WD740ADFD-00NLR1", NULL,		ATA_HORKAGE_NONCQ, },
>>  	{ "WDC WD3200AAJS-00RYA0", "12.01B01",	ATA_HORKAGE_NONCQ, },
>>  	{ "FUJITSU MHV2080BH",	"00840028",	ATA_HORKAGE_NONCQ, },
>> +	{ "FUJITSU MHW2160BJ G2",       NULL,           ATA_HORKAGE_NONCQ },
>>  	{ "ST9120822AS",	"3.CLF",	ATA_HORKAGE_NONCQ, },
>>  	{ "ST9160821AS",	"3.CLF",	ATA_HORKAGE_NONCQ, },
>>  	{ "ST9160821AS",	"3.ALD",	ATA_HORKAGE_NONCQ, },
> 
> Thanks.  We're currently trying to find out what's actually going on
> with all these drives.  At first, drives which got blacklisted aren't
> many and made sense (had other problems with NCQ, etc..) but with new
> generation drives from many vendors showing the same symptom, we aren't
> too sure now.
> 
> I'll keep your email in my todo list and add the drive to the blacklist
> once the problem is verified.

I agree that something seems fishy with this. It seems unlikely that 
this many drives from multiple vendors would have the exact same, 
relatively obscure problem..

-- 
Robert Hancock      Saskatoon, SK, Canada
To email, remove "nospam" from hancockr@...pamshaw.ca
Home Page: http://www.roberthancock.com/

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