Re: [PATCH 6 of 7] x86: move pud/pgd functions into common asm/pgalloc.h
From: Jeremy Fitzhardinge
Date: Sat Feb 02 2008 - 06:49:55 EST
Ingo Molnar wrote:
yes but the early hang is very real so either my hardware is stubbornly
ignoring that your patch is pure code movement (in which case i'll have
to have a word or two with my hardware), or your patch is perhaps wrong
somewhere ;-)
I see what it is. set_pud on 32-bit needs only _PAGE_PRESENT, but for
64-bit it needs _PAGE_TABLE.
generally you can protect yourself against full reverts by separating
the NOP changes from the non-NOP changes. If a change is small enough i
might spot the bug immediately and fix it - otherwise i have to undo
your whole series to keep the x86.git ball rolling. I thought we went
through this excercise a few times already :-/ ...
This one was supposed to be pure motion, but my eyeball diff failed me.
J
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