linux-kernel - Re: [PATCH 1/1] mmc: Some microSD cards are not recognized by PCIxx12 SDA controller

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Message-ID: <49CBAF36.1010203@gmail.com>
Date:	Thu, 26 Mar 2009 17:37:10 +0100
From:	José María Fernández González 
	<josemariafg@...il.com>
To:	Pierre Ossman <drzeus-list@...eus.cx>
CC:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Subject: Re: [PATCH 1/1] mmc: Some microSD cards are not recognized by PCIxx12
 SDA controller

Pierre Ossman wrote:
> On Wed, 25 Mar 2009 09:00:56 +0100
> José María Fernández González <josemariafg@...il.com> wrote:
> 
>> As I'm going to install 2.6.29 today, I can test the patch with it and HZ=100.
> 
> Please do. And try to determine where it breaks. I'd prefer if we don't
> need to increase this yet again in a month because we were relying on
> some scheduling latencies. :)
> 
> Rgds

I have been testing the patch with kernel 2.6.29 and a couple of cards (the Transcend 2GB microSD and a EZ Memory 8GB SDHC) in a few cases:

*	HZ=300 + tickless + desktop preemption
*	HZ=100 + tickless + desktop preemption
*	HZ=100 + desktop preemption
*	HZ=100 + low latency desktop preemption
*	HZ=1000 + tickless + desktop preemption

and it worked with no problem. I don't know if I have forgotten any obvious corner case. Perhaps I should have tested with no preemption...

	Best Regards,
		José María
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