Re: 2.6.38.2 breaks suspend to disk

From: H. Peter Anvin
Date: Fri Apr 01 2011 - 15:37:05 EST


On 04/01/2011 12:32 PM, Yinghai Lu wrote:
>
> So for 32 bit, PAE support is not compiled in for old 486 cpus.
> mmu_cr4_feautres will be used to make sure head_32.S will not access cr4.
>
> that could be the reason why 32 bit does not do read back at beginning.
>

Yes, but that doesn't explain why we shouldn't set new bits like NX and
PSE in this register.

-hpa
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