On Mon, 2010-08-09 at 19:29 -0400, Kyle Moffett wrote: > Package: linux-2.6 > Severity: normal > Tags: patch > > Would it be possible to apply the attached Fedora/Ubuntu kernel patch > to Debian as well? The Fedora link is: > http://cvs.fedoraproject.org/viewvc/F-13/kernel/fix_xen_guest_on_old_EC2.patch > > And the Ubuntu link: > http://kernel.ubuntu.com/git?p=rtg/ubuntu-maverick.git;a=commit;h=1a30f99 > > As far as I can tell, no released version of Xen currently supports > XSAVE, so this change is effectively a NOP on all newer hypervisors, but > it allows functionality on older hypervisors (such as RHEL5, or when > running on Amazon's EC2 service). [...] The comment says that 'There is only potential for guest performance loss on upstream Xen' which implies that XSAVE is supported now. Ian, what's your take on this? Is it worth trying to use XSAVE, and if so is there a way to detect the broken HV versions before doing so? Ben. -- Ben Hutchings Once a job is fouled up, anything done to improve it makes it worse.
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