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

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Message-ID: <507E0C1A.1010705@intel.com>
Date:	Wed, 17 Oct 2012 09:38:34 +0800
From:	Aaron Lu <aaron.lu@...el.com>
To:	Borislav Petkov <bp@...64.org>, Shane Huang <shane.huang@....com>
CC:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-ide@...r.kernel.org,
	LKML <linux-kernel@...r.kernel.org>
Subject: Re: ata4.00: failed to get Identify Device Data, Emask 0x1

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 :-)

Thanks,
Aaron

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