Subject: Re: Adaptec 2010S i2o + x86_64 doesn't work
From: Miquel van Smoorenburg <miquels@cistron.nl>
To: Alan Cox <alan@lxorguk.ukuu.org.uk>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
       Markus.Lidel@shadowconnect.com, miquels@cistron.nl
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	 <1113576775.11116.17.camel@localhost.localdomain>
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Date: Fri, 15 Apr 2005 18:15:22 +0200
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On Fri, 2005-04-15 at 15:52 +0100, Alan Cox wrote:
> On Mer, 2005-04-13 at 17:03, Miquel van Smoorenburg wrote:
> > I have a supermicro dual xeon em64t system, X6DH8-XG2 motherboard,
> > 4 GB RAM, with an Adaptec zero raid 2010S i2o controller. In 32
> > bits mode it runs fine, both with the dpt_i2o driver and the
> > generic i2o_block driver using kernel 2.6.11.6.
> 
> Does it work if you drop the box to 2Gbytes ?

I tried 2.6.9 with 4GB and it didn't make any difference.

However, I removed 2 GB from the box as Alan sugggested and now the box
comes up just fine with a 64-bit 2.6.11.6 kernel! I've put the 4GB back,
and booted with the kernel "mem=2048" command line option - that also
works, the i2o_block driver sees the adaptec controller just fine.

And I just booted it with "mem=3840M" and that works too.

So the problem appears to be 4 GB memory in 64 bit mode, on this box.

Mike.

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