linux-kernel - Re: [PATCH] ata: Disable NCQ for Crucial M225 brand SSDs

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Message-ID: <aacba7e1001262136o3b1cfb97yed421bba02580bef@mail.gmail.com>
Date:	Wed, 27 Jan 2010 11:06:13 +0530
From:	Vishal Rao <vishalrao@...il.com>
To:	Mark Lord <kernel@...savvy.com>
Cc:	Jeff Garzik <jgarzik@...ox.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org, trivial@...nel.org, stable@...nel.org
Subject: Re: [PATCH] ata: Disable NCQ for Crucial M225 brand SSDs

2010/1/27 Mark Lord <kernel@...savvy.com>:
> Can you identify the specific Indilinx build number that your drive firmware
> is based upon?  If not, then at least post the identify data for us to
> examine:
>
>  hdparm --Istdout /dev/sd?


Thanks for taking the time on this.

I am unsure of the "specific IndiLinx firmware build number" though I've
noticed the release numbers are common for different manufacturers.
For example my disk came with the then-latest firmware "1819"
(with TRIM) which had write-perf issues then they recently released
"1916" which added TRIM and GC support (seems to work very well
I should say).

Linux logs "CRUCIAL_CT128M225" and "1916" in my dmesg, speaking
of which, here is my latest full dmesg: http://pastebin.ubuntu.com/363659/

And here is the output of hdparm --Istdout /dev/sd? :
http://pastebin.ubuntu.com/363660/

I am running the following on Kubuntu development version, uname -a is:
"Linux thunderbird 2.6.32-11-generic #16~vishalrao2 SMP Tue Jan 26
19:03:33 IST 2010 x86_64 GNU/Linux"

The " ~vishalrao2 " portion indicating it being the proposed patch -
in that good old "works for me" kind of way.
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