Re: [Bug 4298] swsusp fails to suspend if CONFIG_DEBUG_PAGEALLOCis also enabled

[Stefan Seyfried]

Andrew Morton wrote:
> Pavel Machek <pavel@xxxxxx> wrote:

>> Okay, that is because low-level assembly requires PSE (4mb pages for
>> kernel) and DEBUG_PAGEALLOC disables that capability.
>> 
>> If you feel like rewriting assembly code to turn off paging (and thus
>> working with PSE), go ahead, but I do not think it is worth the
>> trouble.
>> 
>> OTOH we should at least tell people what went wrong, some people seen
>> same problem on VIA cpus... Please apply,
>> 
> 
> Isn't some Kconfig solution appropriate here?

Yes, but only for the CONFIG_DEBUG_PAGEALLOC case, it does not solve the
"cpu has no PSE" case for VIA CPUs. So the Kconfig solution is an extra
bonus.

    Stefan

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