* Re: Fusion problems with 2.6.5rc1 on AMD x86-64 III
[not found] ` <20040317060332.36d492ab.ak@suse.de>
@ 2004-03-17 9:00 ` Andi Kleen
2004-03-17 9:06 ` Fusion problems with 2.6.5rc1 on AMD x86-64 IV Andi Kleen
0 siblings, 1 reply; 2+ messages in thread
From: Andi Kleen @ 2004-03-17 9:00 UTC (permalink / raw)
To: Andi Kleen; +Cc: linux-scsi, emoore, James.Bottomley
On Wed, 17 Mar 2004 06:03:32 +0100
Andi Kleen <ak@suse.de> wrote:
> The actual problem is the recent consistent_dma_mask change from James. For some reason
> the x86-64 pci_alloc_consistent always sees an 0xffffffffffffffff dma mask now
> and that breaks Fusion.
I found some bugs in x86-64 code now that explained the problem. For some reason
the consistent mask patchkit seems to have triggered them. It's fixed now.
-Andi
^ permalink raw reply [flat|nested] 2+ messages in thread* Re: Fusion problems with 2.6.5rc1 on AMD x86-64 IV
2004-03-17 9:00 ` Fusion problems with 2.6.5rc1 on AMD x86-64 III Andi Kleen
@ 2004-03-17 9:06 ` Andi Kleen
0 siblings, 0 replies; 2+ messages in thread
From: Andi Kleen @ 2004-03-17 9:06 UTC (permalink / raw)
To: Andi Kleen; +Cc: linux-scsi, emoore, James.Bottomley
On Wed, 17 Mar 2004 10:00:40 +0100
Andi Kleen <ak@suse.de> wrote:
> On Wed, 17 Mar 2004 06:03:32 +0100
> Andi Kleen <ak@suse.de> wrote:
>
>
> > The actual problem is the recent consistent_dma_mask change from James. For some reason
> > the x86-64 pci_alloc_consistent always sees an 0xffffffffffffffff dma mask now
> > and that breaks Fusion.
>
> I found some bugs in x86-64 code now that explained the problem. For some reason
> the consistent mask patchkit seems to have triggered them. It's fixed now.
Sorry for the many follow ups to myself :-)
Anyways the consistent mask problem is still with us. I just have a workaround that
works (force it to 4GB) and there were related bugs in the x86-64 IOMMU code.
James, can you take a look at that please? From a first look i didn't find the place
where it is set to 0xffffffffffffffff. It isn't the driver.
-Andi
^ permalink raw reply [flat|nested] 2+ messages in thread
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2004-03-17 9:00 ` Fusion problems with 2.6.5rc1 on AMD x86-64 III Andi Kleen
2004-03-17 9:06 ` Fusion problems with 2.6.5rc1 on AMD x86-64 IV Andi Kleen
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