[Xen-devel] [PATCH] fix for NMI causing auto reboot with SMP domains

["Santos, Jose Renato G" <joserenato.santos@xxxxxx>]

  This patches fix a NMI problem I was seeing when running xenoprof on
SMP guests.
  The machine used to auto reboot if an NMI was received in a critical
time window when
  context switching domains. There is a small time window when the GDT
may become unmapped
  (after CR3 is updated and before setting GDTR with the new GDT during
a domain context
  switch. If an NMI is received during this time window a triple fault
is triggered causing
  the machine to auto reboot. This patch fix this problem. Please,
apply.

  I should be sending patches for the new version of xenoprof that
supports SMP domains
  profiling , shortly.

  Thanks

  Signed-off-by: Jose Renato Santos <jsantos@xxxxxxxxxx>

Attachment: nmi_fault_fix.patch
Description: nmi_fault_fix.patch

_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel