https://bugzilla.novell.com/show_bug.cgi?id=300496#c37
Jan Beulich changed:
What |Removed |Added
----------------------------------------------------------------------------
Status|NEW |NEEDINFO
Info Provider| |stshaw@novell.com
--- Comment #37 from Jan Beulich 2007-09-17 04:16:08 MST ---
Re #33: This would pretty much indicate a 32-bit DMA issue (i.e. something
trying a DMA32 [or DMA] allocation, using its result (translated to
phys/machine) directly (i.e. without going through
xen_create_contiguous_region). I had screened the agp and drm code in the
kernel for such issues quite a while ago, and the problems this revealed are
believed all fixed meanwhile.
Also, I'm not clear about the final determination of whether 3D matters here
(looking at the machine above, I can't e.g. see any drm module loaded, but the
machine also isn't running Xen at the moment, nor is it using the bigsmp/xenpae
kernels), as well as what configurations are affected (#33 states non-PAE is
unaffected, but the machine pointed to in earlier comments doesn't appear to
use or need PAE kernels).
It might help to get a state dump from Xen (perhaps a number of times in case
execution turns out to be in user mode) by sending 'd' from the serial console
(make sure input focus is with Xen).
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