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().
In principle, pmap_extract(kernel_pmap, ...) should work just fine.
Alan
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