Should be fixed as of 44032.

> Date: Mon, 9 Nov 2009 00:13:51 +0300
> From: gorbachev@reactos.org
> To: ros-dev@reactos.org
> Subject: Re: [ros-dev] [ros-diffs] [sginsberg] 43958: - Fix the "fix" of un-protecting the 7 IDT entries on P5 in HAL's BIOS call code when setting the custom Invalid Opcode handler
>
> > Ok...so how does it crash? And where? Can I get a backtrace or something?
>
> First time, HalpBiosDisplayReset() is called when booting, before
> KiI386PentiumLockErrataFixup(). Recent changes cause a page to be
> protected from writing. Then kernel tries to write to this page and
> crashes. Another time, HalpBiosDisplayReset() is called when shutting
> down; before r39959, crash happened to be there. From r39959 and
> before r43958, write protection was established only in
> KiI386PentiumLockErrataFixup().
>
> It appears that a fix for a fix for a fix is now needed:)
>
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