Messages in this thread | | | Subject | Re: [PATCH] restore sysenter MSRs at resume | From | Alan Cox <> | Date | 11 May 2003 22:04:37 +0100 |
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On Sul, 2003-05-11 at 20:01, Linus Torvalds wrote: > However, the fact that the SYSENTER MSR needs to be restored makes me > suspect that the other MSR/MTRR also will need restoring. I don't see > where we'd be doing that, but it sounds to me like it should be done here > too..
Some laptops certainly require the MTRR restore to happen. MSRs are mostly less of a problem because the profiling stuff is broken on PIII unless you disable/re-enable it across power save anyway.
Some laptops also lose all the AGP settings in the chipset.
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