Re: [v2 0/2] ata/libata-eh.c: introduce ATA_FLAG_NO_LOG_PAGE
From: Tejun Heo
Date: Mon Dec 07 2015 - 10:28:01 EST
On Fri, Dec 04, 2015 at 06:12:24PM +0100, Andreas Werner wrote:
> This patchset add a new ata port flag ATA_FLAG_NO_LOG_PAGE to be able
> to blacklist ports/controller which e.g. locks up on a log page read.
>
> This flag is added to the sata_fsl driver which is the first affected
> one.
>
> The lockup was detected on Freescale P1013/P1022, T4240 using a ATP
> mSATA.
> The device failed during initialisation if the SATA device includes the
> devslp feature.
>
> With this patchset, we blacklist the fsl sata controller and return
> a error on any attempt to read a log page. This allows us to access
> the mSATA.
Applied 1-2 to libata/for-4.4-fixes.
Thanks.
--
tejun
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