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Message-ID: <20080815180048.GA26844@elte.hu>
Date: Fri, 15 Aug 2008 20:00:48 +0200
From: Ingo Molnar <mingo@...e.hu>
To: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
Cc: prarit@...hat.com, jbarnes@...tuousgeek.org, joro@...tes.org,
linux-kernel@...r.kernel.org, linux-pci@...r.kernel.org
Subject: Re: [PATCH]: PCI: GART iommu alignment fixes [v2]
* Ingo Molnar <mingo@...e.hu> wrote:
>
> * FUJITA Tomonori <fujita.tomonori@....ntt.co.jp> wrote:
>
> > From: FUJITA Tomonori <fujita.tomonori@....ntt.co.jp>
> > Subject: [PATCH] x86 gart: allocate size-aligned address for alloc_coherent
> >
> > This fixes GART to return a properly aligned address as
> > DMA-mapping.txt defines.
>
> applied to tip/x86/gart, thanks! Any v2.6.27-urgency of this patch?
hm, -tip testing has found that this patch causes a hard hang during
bootup:
initcall ali_init+0x0/0x1b returned 0 after 3 msecs
calling amd_init+0x0/0x1b
bus: 'pci': add driver pata_amd
bus: 'pci': driver_probe_device: matched device 0000:00:06.0 with driver pata_amd
bus: 'pci': really_probe: probing driver pata_amd with device 0000:00:06.0
pata_amd 0000:00:06.0: version 0.3.10
pata_amd 0000:00:06.0: setting latency timer to 64
[hard hang]
should have continued with:
scsi0 : pata_amd
device: 'host0': device_add
device: 'host0': device_add
scsi1 : pata_amd
[... etc. ... ]
on an AMD X2 testsystem. (Asus board) Can send more info on request.
Config is:
http://redhat.com/~mingo/misc/config-Fri_Aug_15_18_30_56_CEST_2008.bad
Any idea why that is so? Apparently the alignment change wasnt as benign
as assumed.
Ingo
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