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Subject: re: Linux 2.4.21pre4-ac5 status report
From: Soeren Sonnenburg <kernel@nn7.de>
To: Tomas Szepe <szepe@pinerecords.com>
Cc: Edward King <edk@cendatsys.com>, Mikael Pettersson <mikpe@user.it.uu.se>,
       Linux Kernel <linux-kernel@vger.kernel.org>
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Date: 03 Mar 2003 21:56:53 +0100
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On Mon, 2003-03-03 at 20:57, Tomas Szepe wrote:
> > [edk@cendatsys.com]
> > 
> > >>Maybe that's changed in 2.4.21-pre-ac new IDE code, I don't know.
> > >>
> > >>Your cards don't share interrupts with anything else I hope?
> > >>
> > I tried  two pdc20268's which failed miserably
> > 
> > Used an Asus motherboard and an FIC motherboard, different cables, 
> > different cards, different powersupply.Hard drives are 200GB western 
> > digitals, one drive per channel.  
> > 
> > Tried an SIIG card with the SiI680 chipset -- same problem using is and 
> > the pdc20268, but is more stable than a single pdc -- so now I have 4 
> > drives on that card.
> > 
> > My kernel is 2.4.21-pre4-ac6 -- let me know if the pre5's solve the problem.
> 
> I'd be quite interested to know whether the FreeBSD IDE driver can handle
> these setups properly.

Me too... I would not think so, but who know.

However at least the freeze was reproducable here. Just take two
pdc20268 controller, attach one driver per channel, setup a raid5, let
it build up the raid. Then start bonnie and you will get a freeze within
15min when using something higher than mdma0.

The system now is really rock stable with these htp370 based
dawicontrol-100 cards (which are in the same slots as the pdcs were).

Soeren.