linux-kernel - Re: MMC: commit dba3c29 ruins mmc card data on beagle-xm revB

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Message-ID: <CACVXFVP16UmHe-GGydrSMgGHwnkSvYhnY339=zr=BfCehvS8Kw@mail.gmail.com>
Date:	Mon, 11 Jun 2012 15:20:22 +0800
From:	Ming Lei <ming.lei@...onical.com>
To:	"T Krishnamoorthy, Balaji" <balajitk@...com>
Cc:	linux-mmc@...r.kernel.org,
	linux-arm-kernel <linux-arm-kernel@...ts.infradead.org>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Chris Ball <cjb@...top.org>, Venkatraman S <svenkatr@...com>
Subject: Re: MMC: commit dba3c29 ruins mmc card data on beagle-xm revB

On Mon, Jun 11, 2012 at 2:21 PM, T Krishnamoorthy, Balaji
<balajitk@...com> wrote:
> Hi Ming Lei,
> Can you let me know if you noticed any write/timeout errors ?

Nothing error logs found during writing.

Below is one of my test case.

root@...gleboard:~# upk
updateing kernel...
flush storage...
root@...gleboard:~# cat bin/upk
#!/bin/sh

echo "updateing kernel..."
cp -f /mnt/nfs/t/uImage /media/mmcblk0p1/

echo "flush storage..."
sync
root@...gleboard:~# diff /mnt/nfs/t/uImage /media/mmcblk0p1/uImage
Binary files /mnt/nfs/t/uImage and /media/mmcblk0p1/uImage differ
root@...gleboard:~# umount /media/mmcblk0p1
root@...gleboard:~# mount -t vfat /dev/mmcblk0p1 /media/mmcblk0p1
root@...gleboard:~#
root@...gleboard:~#
root@...gleboard:~# diff /mnt/nfs/t/uImage /media/mmcblk0p1/uImage
Binary files /mnt/nfs/t/uImage and /media/mmcblk0p1/uImage differ


Thanks,
--
Ming Lei
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