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