Re: ata4.00: failed to get Identify Device Data, Emask 0x1

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On 10/16/2012 07:38 PM, Aaron Lu wrote:
On 10/16/2012 11:18 PM, Borislav Petkov wrote:
On Tue, Oct 16, 2012 at 03:58:24PM +0100, Alan Cox wrote:
Can you check whether 3.6 works on them. I know 3.6 is horribly broken
on several brands of AHCI controller (Jmicron for example). Dunno
where Jeff is on fixing the regressions ?

If by "works" you mean I don't see the message there, then yes, it does.
Logs say the message started appearing on Oct 4th after me building
Linus master after the merge window started.

Ok, let me test 3.6.2 just in case ...<tests>... yes, no error message
there.

This is brought by commit: 65fe1f0f66a57380229a4ced844188103135f37b,
ahci: implement aggressive SATA device sleep support.

Shane, got time to take a look? This debug message made people
uncomfortable :-)

I don't have whatever version of ATA command set defines this command, but surely there's some identify bit which lists whether this log page is supported. Right now checking for it is only conditional on NCQ support.
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