Messages in this thread | | | Date | Sat, 12 Mar 2016 13:03:03 +0100 | From | Borislav Petkov <> | Subject | Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" |
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On Fri, Mar 11, 2016 at 11:29:54PM +0000, Richard Purdie wrote: > ... and if I remember rightly, the CPU features the kvm* options > provide vary quite widely and wasn't consistent.
How so? Please elaborate so that we can fix those.
Btw, your reproducer works fine with -cpu kvm32 - only vncviewer's window gets killed after a "Rect too large: 640x480 at (0, 0)" but when I reconnect again right after it I see an X window asking me to calibrate my touch screen and I'm at a loss as to where my touch screen is... :-P
> Tweaking the kernel to only enable PAT with MTRR sounds like a good > fix,
Yeah, the idea is to basically switch to uncacheable memtype as when MTRRs are disabled.
-- Regards/Gruss, Boris.
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton, HRB 21284 (AG Nürnberg) --
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