8.0-RC1 panic attaching ppc
alc at cs.rice.edu
Fri Sep 25 17:38:32 UTC 2009
John Baldwin wrote:
> On Friday 25 September 2009 3:20:05 am Daniel O'Connor wrote:
>> On Thu, 24 Sep 2009, John Baldwin wrote:
>>> Can you try this patch perhaps:
>>> Index: sys/amd64/isa/isa_dma.c
>>> --- isa_dma.c (revision 197430)
>>> +++ isa_dma.c (working copy)
>> This patch fixes the panic for me.
>> I haven't tried printing (don't have any device handy here).
> I wonder if pmap_extract(kernel_pmap) doesn't work with direct map addresses
> for some reason? I kind of find that hard to believe actually. Alan, the
> original panic was in pmap_extract(kernel_pmap, ...) calls in the isa_dma
> code. My patch that "fixes" the panic just changes them to pmap_kextract().
Is this problem occurring on an AMD processor?
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