Re: [Fastboot] [CFT] ELF Relocatable x86 and x86_64 bzImages

From: Eric W. Biederman
Date: Sat Aug 12 2006 - 15:39:52 EST

Don Zickus <dzickus@xxxxxxxxxx> writes:

>> This looks like a different one but looks fairly sane.
>> Do you know what code had problems having _PAGE_NX set.
>> What are we doing with early_ioremap the requires execute
>> permissions. It doesn't sound right that we would need
>> this.
> This fix is only needed for a subset of our em64t boxes, so it could be
> just a chipset problem. Supposedly, if I remember the conversation
> correctly, when the kernel first boots it reserves about 40MB and about 20
> pmds automatically. After decompression, early_io_remap tries to setup
> all the memory. The conflict arose when early_io_remap tried to reuse one
> of those pmds. This caused the system to crash and reboot.
> I'll try to get more info Monday on the specifics.


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