Dave Anderson wrote:
>
> If this is still a work in progress, excuse my interruption, but if
> not,
> the alpha enter_lazy_tlb() should update the kernel task's ptbr with
> the
> oldmm's pgd. Right?
I added enter_lazy_tlb() for i386 [I needed it for the new lazy tlb
flush code], and I added empty functions for all other architectures.
Note that Richard Henderson found another problem with the current alpha
tlb code design:
Richard Henderson wrote on 06 Feb 2000:
> But this leads to a different failing scenario:
>
> CPU0: CPU1:
> switch_mm(A,mmA)
> this implies A->thread.asn
> and mmA->context are valid.
> flush_tlb_other(A)
> this implies mmA->context is 0.
> switch_to(A)
> Now A->thread.asn is out of
> sync with mmA->context.
>
> This will require some thought to avoid scrogging schedule entirely.
>
--
Manfred
