RE: page allocation/attributes question (i386/x86_64 specific)

[Stuart_Hayes]

Hayes, Stuart wrote:
> Ingo Molnar wrote:
>> * Stuart_Hayes@xxxxxxxx <Stuart_Hayes@xxxxxxxx> wrote:
>> 
>>> Ingo Molnar wrote:
>>>> there's one problem with the patch: it breaks things that need the
>>>> low 1MB executable (e.g. APM bios32 calls). It would at a minimum
>>>> be needed to exclude the BIOS area in 0xd0000-0xfffff.
>>>> 
>>>> 	Ingo
>>> 
>>> I wrote it to make everything below 1MB executable, if it isn't RAM
>>> according to the e820 map, which should include the BIOS area.  This
>>> includes 0xd0000-0xffff on my system.  Do you think I should
>>> explicity make 0xd0000-0xfffff executable regardless of the e820
>>> map? 
>> 
>> hm ... which portion does this? I'm looking at fixnx2.patch. I
>> definitely saw a APM bootup crash due to this, but that was on a
>> 2.4-ish backport of the patch.
>> 
>> 	Ingo
> 
> Oh, sorry, we're talking about two different patches.  I sent in a
> different patch yesterday, because Andi Kleen didn't seem very
> enthusiastic about fixnx2.patch.  Here's the patch that I sent
> yesterday (attached as file init.c.patch).   
> 
> Thanks
> Stuart

Although... if you like the fixnx2.patch better, I can modify it.  I'm
ok with either approach.

Stuart
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