Re: "x86-64, mm: Put early page table high" causes crash on Xen

[Yinghai Lu]

On Tue, Mar 8, 2011 at 12:09 PM, Stefano Stabellini
<stefano.stabellini@xxxxxxxxxxxxx> wrote:
> On Tue, 8 Mar 2011, Yinghai Lu wrote:
>> [    0.000000] kernel direct mapping tables up to 7f750000 @
>> [0x7f74c000-0x7f74ffff] pre-allocated
>> [    0.000000] DEBUG map_low_page phys    243a000
>> [    0.000000] DEBUG map_low_page phys    243e000
>> [    0.000000] DEBUG alloc_low_page phys   7f74c000
>> [    0.000000] DEBUG map_low_page phys    243a000
>> [    0.000000] DEBUG map_low_page phys   7f74c000
>> [    0.000000] DEBUG alloc_low_page phys   7f74d000
>>
>
> I couldn't see this on my machine but I was afraid it could happen on
> some hardware :(

if system have more than 4g memory.

> Thank you very much for spending your time on this and for your kind
> replies.
> I'll follow up with an update of the xen specific patch I posted before
> and I won't bother you again with this :)

never mind.

Thanks

Yinghai
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