[Xen-devel] segfault in VM

[Derek Glidden <dglidden@xxxxxxxxxxxxxxx>]

Maybe related or maybe not, but it was the same VM getting all the 
scheduling time in my previous post.  (SMP Celeron box with 512M of 
RAM, no himem enabled.)
At the time, four VMs were all compiling, with dom0 copying a linux 
source tree from one place to another with rsync.  Everything copacetic 
until I started the big rsync in dom0, where within a minute or so, vm2 
bombed.  No messages on the dom0 console or in the VM other than the 
"Segmentation Fault" in the VM during compliation.
However XEN (compiled with debug=y) console spits out:

(XEN) (file=x86_32/emulate.c, line=228) Bailing: not a -ve offset into 
4GB segment.
at the time of the segmentation fault.

(and there are lots of these, pretty much any time there is heavy i/o 
on the machine, all with the same values:)
(XEN) (file=traps.c, line=466) GPF (0004): fc5277a8 -> fc52a294

Any further activity inside vm2 results in more segmentation faults and 
more "Bailing" messages.  The other VMs and dom0 seem to be ok.
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