Messages in this thread | | | Date | Mon, 18 Sep 2006 09:10:29 -0700 (PDT) | From | Linus Torvalds <> | Subject | Re: Sysenter crash with Nested Task Bit set |
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On Mon, 18 Sep 2006, Linus Torvalds wrote: > > The addition is fairly obvious, but maybe I screwed something up, so buyer > beware...
Final note (I promise): now that we save/restore eflags again, we should probably revert the set_iopl_mask() in task switching too. However, that apparently has some para-virtualization issues, so I'm going to ignore that part from now.
However, I'd really like people who know and care about the paravirtualization to take a good long look at it: because right now, with the addition of the eflags save/restore, the set_iopl_mask() in __switch_to() is entirely useless for non-virtualized environments, afaik.
Zack added to the cc. Who else needs to know?
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