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From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Miquel van Smoorenburg <miquels@cistron.nl>
Cc: Linux Kernel Mailing List <linux-kernel@vger.kernel.org>,
	Markus.Lidel@shadowconnect.com
Subject: Re: Adaptec 2010S i2o + x86_64 doesn't work
Date: Fri, 15 Apr 2005 18:48:09 +0100	[thread overview]
Message-ID: <1113587286.11114.30.camel@localhost.localdomain> (raw)
In-Reply-To: <1113581722.14421.15.camel@zahadum.xs4all.nl>

On Gwe, 2005-04-15 at 17:15, Miquel van Smoorenburg wrote:
> 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.

Or the driver is incorrectly handling 64/32bit DMA limit masks which
would be my first guess here, and would explain why it works on AMD
Athlon64 boxes.

Alan


  reply	other threads:[~2005-04-15 17:50 UTC|newest]

Thread overview: 9+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-04-13 16:03 Adaptec 2010S i2o + x86_64 doesn't work Miquel van Smoorenburg
2005-04-13 17:54 ` Markus Lidel
2005-04-15 14:52 ` Alan Cox
2005-04-15 16:15   ` Miquel van Smoorenburg
2005-04-15 17:48     ` Alan Cox [this message]
2005-04-15 18:10       ` Markus Lidel
2005-04-15 18:16         ` Arjan van de Ven
2005-04-15 18:34           ` Markus Lidel
2005-04-15 20:43           ` Alan Cox

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