> I haven't read the patches, but this caught my attention.
>
> Wasn't the use of cr3 there to ensure that we used the right page tables
> when fixing up page faults occuring in the middle of a context switch for
> interrupt handlers in kernel modules?
When 4gb split is used cr3 always(!) points to swapper pgdir when kernel code
is executing, so it is not an issue.
Kirill
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