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From: Sudip Mukherjee <>
To: "Martin K. Petersen" <>
Cc: Tejun Heo <>,,,
Subject: Re: [PATCH v2] libata: blacklist Micron SSD
Date: Wed, 2 May 2018 22:59:50 +0100	[thread overview]
Message-ID: <20180502215950.GA4621@sudip-laptop> (raw)
In-Reply-To: <>

Hi Martin,

On Mon, Apr 30, 2018 at 11:24:49PM -0400, Martin K. Petersen wrote:
> Sudip,
> > v1: Only M500IT MU01 was blacklisted.
> >
> > v2: Whitelist M500IT BG02 and M500DC and then blacklist all other Micron. 
> I think my preference would be to blacklist M500IT with the MU01
> firmware (which Micron said was affected) and rely on the "Micron*"
> fallthrough further down for the rest.

This patch was based on your reply at:

> I have not gotten firm confirmation on ZRAT behavior so for now we
> should probably just do:
> + { "Micron_M500IT_*", "MU01",	ATA_HORKAGE_NO_NCQ_TRIM, },

My v1 patch had only MU01 with ATA_HORKAGE_NO_NCQ_TRIM and
ATA_HORKAGE_ZERO_AFTER_TRIM. I am not very much confident on only
having ATA_HORKAGE_NO_NCQ_TRIM as we have seen huge regression due to
243918be6393 ("libata: Do not blacklist Micron M500DC"). Unless, Micron
confirms that it can only have 'ATA_HORKAGE_NO_NCQ_TRIM' I think we
should go for both. I don't think we should mark it as ZRAT supported,
(without Micron confirmation) and cause another regression.
My v1 patch is at
Do you want me to resend it again?


  reply	other threads:[~2018-05-02 21:59 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2018-04-29 16:01 Sudip Mukherjee
2018-05-01  3:24 ` Martin K. Petersen
2018-05-02 21:59   ` Sudip Mukherjee [this message]
2018-05-03  3:14     ` Martin K. Petersen

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