Hello,
Arjan van de Ven wrote:
On Fri, 2005-04-15 at 20:10 +0200, Markus Lidel wrote:Alan Cox wrote:are you sure the HW isn't 31 bit by accident ?On Gwe, 2005-04-15 at 17:15, Miquel van Smoorenburg wrote:Hmmm, i only set DMA_32BIT_MASK and don't do anything special on 64-bit systems... Is there anything else to do for correct DMA mapping?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.
I don't know :-( But if the controller could only handle 31-bit DMA, wouldn't the 32-bit kernel with 4 GB also have the same problems?
Best regards,
Markus Lidel ------------------------------------------ Markus Lidel (Senior IT Consultant)
Shadow Connect GmbH Carl-Reisch-Weg 12 D-86381 Krumbach Germany
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