linux-kernel - [2.6.30-rc2] usb reset during big file transfer and ext3 error

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Date:	Tue, 21 Apr 2009 08:10:17 -0300
From:	Rogério Brito <rbrito@....usp.br>
To:	linux-kernel@...r.kernel.org
Subject: [2.6.30-rc2] usb reset during big file transfer and ext3 error

Hi there.

I have an amd64 system running Debian's sid distribution and I installed
Linux 2.6.30-rc2 on it, as a way to get improvements for the i915
subsystem.

Unfortunately, when I was transferring the contents of 2 DVDs from the
main IDE HD to a USB external HD, I got errors from the USB host, the
writes on the external HD become failures and the ext3 filesystem there
enters into error mode, going read-only.

I eventually lose the access to the device (i.e., the /dev/sd??? device
isn't there anymore) and I then have to re-run fsck on the given
filesystem.

This has already happened 2 or 3 times already and I observed that it
only occurs when there is high traffic---if I am, say, compiling the
kernel on that external HD, I don't see any problems.

Attached is part of the dmesg log that shows the problem. I put the
whole dmesg at <http://rb.doesntexist.org/linux/>.

As always, if any further information is needed, please let me know.

Thanks, Rogério Brito.

-- 
Rogério Brito : rbrito@...ckenzie,ime.usp}.br : GPG key 1024D/7C2CAEB8
http://www.ime.usp.br/~rbrito : http://meusite.mackenzie.com.br/rbrito
Projects: algorithms.berlios.de : lame.sf.net : vrms.alioth.debian.org

View attachment "dmesg-usb-reset-and-ext3-error.txt" of type "text/plain" (29035 bytes)