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Groups > linux.kernel > #1356411
| From | Borislav Petkov <bp@suse.de> |
|---|---|
| Newsgroups | linux.kernel |
| Subject | Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" |
| Date | 2016-03-12 13:10 +0100 |
| Message-ID | <rbQwO-5MS-9@gated-at.bofh.it> (permalink) |
| References | (5 earlier) <rbvC1-70o-1@gated-at.bofh.it> <rbALo-2lN-17@gated-at.bofh.it> <rbDzz-4vT-3@gated-at.bofh.it> <rbDJg-4zW-15@gated-at.bofh.it> <rbEYG-5p1-7@gated-at.bofh.it> |
| Organization | linux.* mail to news gateway |
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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Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-04 19:40 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-04 22:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-07 01:40 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-07 16:20 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-07 23:50 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-08 01:00 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-08 01:10 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-08 01:50 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-08 04:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-08 16:50 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-10 15:50 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-10 17:00 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-10 18:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-10 20:10 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-10 20:20 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-10 20:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" One Thousand Gnomes <gnomes@lxorguk.ukuu.org.uk> - 2016-03-11 14:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-11 14:50 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paolo Bonzini <pbonzini@redhat.com> - 2016-03-11 20:20 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-11 23:20 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Bruce Ashfield <bruce.ashfield@windriver.com> - 2016-03-11 23:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Richard Purdie <richard.purdie@linuxfoundation.org> - 2016-03-12 00:50 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-12 13:10 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-10 20:20 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-10 20:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-10 20:40 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Borislav Petkov <bp@suse.de> - 2016-03-10 22:10 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-10 23:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-08 04:20 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-08 16:30 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Toshi Kani <toshi.kani@hpe.com> - 2016-03-08 17:10 +0100
Re: runtime regression with "x86/mm/pat: Emulate PAT when it is disabled" Paul Gortmaker <paul.gortmaker@windriver.com> - 2016-03-08 17:10 +0100
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