Re: X86_64 + VIA + 4g problems

From: Dieter Stüken
Date: Tue Jan 03 2006 - 14:55:29 EST


Andi Kleen wrote:
Does everything work (including the SKGE) driver
when you boot with swiotlb=force ?

Yes, it seems to work so far! I'm just reading some GB via NFS (while writing this
mail on the same host). I already performed some other test: without initializing the
network (and still without swiotlb=force) all my SATA controller seem to work properly.
I did a "dd bs=400M" on each in parallel. So I'm sure that each of my 4G was involved.
(also I'm not sure, if EACH of my 3 controllers really used something above 3G)

All this was still with an unpatched 2.6.15-rc7 and with IOMMU disabled.
So I could either try "iommu=allowed", as suggested by dmesg from
check_ioapic() or I may apply the suggested patch for pci-gart.c,
or both with and without network....

May be I report about soon, else tomorrow.

Dieter.
--
Dieter Stüken, con terra GmbH, Münster
stueken@xxxxxxxxxxx
http://www.conterra.de/
(0)251-7474-501
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