Messages in this thread |  | | Date | Fri, 28 Sep 2001 01:13:50 +0200 (MET DST) | From | Mikael Pettersson <> | Subject | Re: [PATCH] Cleanup f00f bug code |
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On Wed, 26 Sep 2001 21:52:09 -0400, Brian Gerst wrote:
>This patch changes the f00f bug workaround code to use a fixed mapping >instead of touching the page tables directly. It also removes the >assumption that only 686's don't have the bug. It has been tested for >normal operation of the relocated IDT, but I don't have a processor with >the bug to do a real test. Could someone with such a processor please >verify that the workaround still works?
It doesn't. 2.4.9-ac16 + your patch booted ok on my P5MMX, and the kernel printed that it applied the F0 0F workaround, but executing F0 0F C7 C8 in user-space caused an instant lockup.
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