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xen-devel
Re: [Xen-devel] x86_64 eth0 e1000_clean_tx_irq tx hang
On 16 Feb 2006, at 11:45, Jan Beulich wrote:
Thanks for tracking this one down: it's been our major outstanding bug
for a while now. We checked in a suitable fix to -unstable (change
pci-dma-xen.c to explicitly include the asm-i386/mach-xen version of
swiotlb.h).
This doesn't sound like a good thing to do, as that way all but this
one file will include the x86-64 version of it,
and you can easily get things out of sync (if e.g. the x86-64 version
changes). I would much favor the change being done
as originally posted; we have a similar same fix in our tree.
In our tree, pci-dma-xen.c is the only file that uses the core swiotlb
functions. Since it's an i386 file linked against our xen-i386 swiotlb,
it seems to make sense for it to include explicitly the i386 swiotlb
header file. The best fix of course is to merge the swiotlbs: maybe by
incrementally modifying the xen-specific one to get it closer the
generic swiotlb code.
-- Keir
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