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Message-ID: <20180316205559.GA29406@sudip-laptop>
Date:   Fri, 16 Mar 2018 20:55:59 +0000
From:   Sudip Mukherjee <sudipm.mukherjee@...il.com>
To:     "Martin K. Petersen" <martin.petersen@...cle.com>
Cc:     Tejun Heo <tj@...nel.org>, linux-kernel@...r.kernel.org,
        linux-ide@...r.kernel.org, stable@...r.kernel.org
Subject: Re: [PATCH] libata: blacklist Micron 500IT SSD with MU01 firmware

Hi Martin,

On Fri, Mar 16, 2018 at 11:54:30AM -0400, Martin K. Petersen wrote:
> 
> Sudip,
> 
> > While whitelisting Micron M500DC drives, the tweaked blacklist entry
> > enabled queued TRIM from M500IT variants also. But these do not support
> > queued TRIM. And while using those SSDs with the latest kernel we have
> > seen errors and even the partition table getting corrupted.
> 
> > +	{ "Micron_M500IT_*",		"MU01",	ATA_HORKAGE_NO_NCQ_TRIM |
> > +						ATA_HORKAGE_ZERO_AFTER_TRIM, },
> 
> Any reason to believe this deficiency is limited to MU01 firmware?

Not really. But we also use MG02 firmware and afaik, Micron has
confirmed that MG02 is a fixed one.
I have only mentioned MU01 as I know it has the problem.

--
Regards
Sudip

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