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Subject: Re: tg3 fails with x86_64 (but works with i386)
From: Arjan van de Ven <arjan@infradead.org>
To: Frank Steiner <fsteiner-mail1@bio.ifi.lmu.de>
Cc: Kernel Mailing List <linux-kernel@vger.kernel.org>, davem@redhat.com,
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Date: Tue, 12 Jul 2005 10:17:45 +0200
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On Tue, 2005-07-12 at 10:05 +0200, Frank Steiner wrote:
> Frank Steiner wrote
> 
> > Hi,
> > 
> > I've two 3com 3C996B-T network cards (lspci says it's
> > a Broadcom BCM5701 chip) in Asus A8V boards with an
> > AMD64 4000+ cpu. Booting a x86_64 version of the
> > 2.6.12.2 kernel, the tg3 module complains
> > 
> >    tg3.c: v3.31 (June 8, 2005)
> >    tg3_test_dma() Write the buffer failed -19
> >    tg3: DMA engine test failed, aborting.
> 
> 
> I could solve this: The A8V boards have (like all 64bit boards I guess?)
> an option for memory remapping around the memory hole at 3.5GB. When
> this remapping is activated, the tg3 driver fails with the error message
> above. If the remapping is deactivated, the driver and the card work fine
> (but linux can only work with 3.7 of the 4GB). But I need to have the
> remapping deactivated anyway, because the fglrx driver won't work
> either otherwise.


you were using a binary kernel module but didn't mention it in your
report? tsk tsk...