Re: Firewire Drive Problems with Suse 9.1 Pro

On Mon, 2005-03-07 at 15:49 +0100, Stefan Richter wrote:
> Stephen J. Scheck wrote:
> > that when attempting to copy a large directory structure (~26 gb) from
> > the firewire drive to the server, at some point in the middle, the drive
> > "disappears" and the copy fails.
>
> It's mentioned in the FAQ at www.linux1394.org, but there seem to be
> temporary DNS problems with this domain, so here we go:
> - try "modprobe sbp2 serialize_io=1" (will probably not help)
> - use kernel 2.4, or
> - use kernel 2.6.11.*
> I do not know whether all recent bug fixes made it into 2.6.11 yet. It
> may be necessary to take the drivers from linux1394.org's trunk as a
> replacement of linux/drivers/ieee1394. If this still does not work, try
> the serialize parameter again. Please post if it succeeds or still fails.

Setting serialize_io=1 solves the problem, but data transfer rates seem
very slow - I benchmarked transfers between 100-150 mbits/sec. Does
serialize_io slow down things, and should I consider playing around with
the 2.6.11.* kernels?

Thanks,

-sjs
 

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Received on Mon Mar 7 16:32:25 2005