linux-kernel - Re: [BUG] firewire: mass-storage i/o-problems

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Date:	Mon, 23 Jul 2007 10:45:06 +0200
From:	Manuel Lauss <mano@...rinelk.homelinux.net>
To:	Stefan Richter <stefanr@...6.in-berlin.de>
Cc:	Andreas Messer <andreas.messer@...d-mail.uni-wuerzburg.de>,
	linux-kernel@...r.kernel.org, linux1394-devel@...ts.sourceforge.net
Subject: Re: [BUG] firewire: mass-storage i/o-problems

Hi,

On Mon, Jul 23, 2007 at 09:40:21AM +0200, Stefan Richter wrote:
> Manuel Lauss wrote:
> > I too experience these bugs with the new fw stack; this time with a TI
> > OHCI-1394a combo chip in 2 different laptops and a Via 1394 pci addon card.
> > The target is a an external hd enclosure with an Oxford Semi chip.
> 
> Thanks for the info.  Then there is definitely a driver problem.  It is
> essential that I (and Kristian) find a way to reproduce it.

I noticed the failures start when there are 2 concurrent disk accesses
(copy something from fw disk on shell 1 and it runs fine; start to
copy something TO the fw disk on shell 2 and a "management write failed"
error appears after 1-2 sec. with the orb timeout after a looong time)
I didn't investigate it further and switched back to the old stack.

Thanks,
	Manuel Lauss
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