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

[Stefano Stabellini]

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 :(
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 :)
Cheers,

Stefano
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