linux-kernel - Re: SDHCI regression since 2.6.39

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Message-ID: <20111103125354.GZ3428@zip.com.au>
Date:	Thu, 3 Nov 2011 23:53:54 +1100
From:	CaT <cat@....com.au>
To:	Jeremy Fitzhardinge <jeremy@...p.org>
Cc:	Chris Ball <cjb@...top.org>, Philip Rakity <prakity@...vell.com>,
	"linux-mmc@...r.kernel.org" <linux-mmc@...r.kernel.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Manoj Iyer <manoj.iyer@...onical.com>
Subject: Re: SDHCI regression since 2.6.39

On Wed, Sep 14, 2011 at 12:54:08PM -0700, Jeremy Fitzhardinge wrote:

Ok. Thread is a bit dated but the bug is the same by the looks of it.
Apologies to anyone hit by the funk of a thousand years. :)

> On 09/14/2011 11:38 AM, Chris Ball wrote:
> > It could indeed be some kind of signal integrity issue.  The easy way to
> > investigate that would be to boot Windows and see if it works there, and
> > the hard way would be to find a friendly hardware hacker with a nice scope.
> 
> I have the original HDD with Windows on it around here somewhere; when I
> get the chance I'll switch them around and see what Windows thinks of it
> (I guess if its still failing then its a warranty fix).

I have an X220 with the same issue. Using a MicroSDHC card with an adapter.

Windows likes it, Linux does not. Very similar looking errors as what Jeremy
has.

Linux: 3.1
BIOS: 1.21 (08/02/2011)
OS: Debian Wheezy

SanDisk adapter with Kingston 4GB MicroSDHC card.

I could help with any testing.

-- 
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