Messages in this thread |  | | Subject | Re: Question: Using floating point in the kernel | Date | Thu, 21 Sep 2000 23:28:26 +0100 (BST) | From | Alan Cox <> |
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> > > It is sufficient when you do tsk->flags |= PF_USEDFPU first. > > > > Unless you sleep > > Unless I'm missing something the lazy FPU state save in the 2.4 switch_to will > do the right thing at least on x86. Your kernel FPU state will overwrite the > user FPU state in current, but that's ok because it is undefined anyways > (and you restore the correct state when you wake up again)
2.4 maybe. Im not totally sure on that code. 2.2 wont
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