Re: sata NCQ blacklist entry

[Robert Hancock <hancockr@shaw.ca>]

Luca Tettamanti wrote:
> On Nov 7, 2007 1:55 PM, Tejun Heo <htejun@gmail.com> 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.
>
> Is there a way to tell whether Windows is using NCQ or not? I checked
> the system log (or whatever it's called) on my notebook and is clean
> but I'm not sure it's using NCQ (I don't even know if it'd log
> spurious completions somewhere).

Which driver is installed for the SATA controller in Windows, the 
chipset-manufacturer-provided AHCI driver or the default Microsoft 
driver? You'd need the AHCI driver installed for NCQ to be used.

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

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