From: "Dieter Stüken" <stueken@conterra.de>
To: linux-kernel@vger.kernel.org
Subject: Re: X86_64 + VIA + 4g problems
Date: Tue, 03 Jan 2006 22:08:51 +0100 [thread overview]
Message-ID: <43BAE7E3.6070504@conterra.de> (raw)
In-Reply-To: <p731wzpjtvm.fsf@verdi.suse.de>
OK, here are my last results for today:
using "iommu=allowed" did not work. System freezes during initialization
of the PDC20318, which is on the external PCI bus.
But swiotlb=force works well!
Using the patch for pci-gart.c currently works while reading data
on all 8 disks in parallel, reading data via NFS and writing this mail.
The pci-gart.c patch seems to disable dma. Is this the DMA my PCI devices
perform them self? As I learned, they may perform DMA even above 4g if all
works well. Thus I may be happy without any IOMMU. As I saw my system working
even without this patch, I will turn back to the original 2.6.15-rc7 an continue
running this torture test during this night.
Dieter.
--
Dieter Stüken, con terra GmbH, Münster
stueken@conterra.de
http://www.conterra.de/
(0)251-7474-501
next prev parent reply other threads:[~2006-01-03 21:09 UTC|newest]
Thread overview: 20+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-01-02 11:09 X86_64 + VIA + 4g problems Dieter Stüken
2006-01-02 12:26 ` Carsten Otto
2006-01-02 16:22 ` Andi Kleen
2006-01-02 16:52 ` Carsten Otto
2006-01-02 17:46 ` Carsten Otto
2006-01-02 19:01 ` Andi Kleen
2006-01-03 22:54 ` Carsten Otto
2006-01-03 10:04 ` Dieter Stüken
2006-01-03 13:58 ` Andi Kleen
2006-01-03 19:56 ` Dieter Stüken
2006-01-03 21:08 ` Dieter Stüken [this message]
2006-01-03 21:26 ` Andi Kleen
2006-01-04 10:27 ` Dieter Stüken
2006-01-04 10:57 ` Andi Kleen
2006-01-04 10:57 ` Dieter Stüken
[not found] <5qvTv-8f-17@gated-at.bofh.it>
[not found] ` <5qAKf-7n4-19@gated-at.bofh.it>
2006-01-02 19:18 ` Robert Hancock
2006-01-02 19:53 ` Andi Kleen
2006-01-02 20:15 ` Robert Hancock
2006-01-02 20:39 ` Andi Kleen
[not found] ` <5qBcJ-7ZZ-5@gated-at.bofh.it>
[not found] ` <5qDez-2Qf-19@gated-at.bofh.it>
[not found] ` <5r2nz-63n-233@gated-at.bofh.it>
2006-01-04 3:03 ` Robert Hancock
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