On 22.05.2013 20:35, Rik van Riel wrote:
> I'm stumped.
>
> If the Geode knows how to flush single TLB entries, it
> should do that when flush_tlb_page is called.
>
> If it does not know, it should throw an invalid instruction
> exception, and not quietly complete the instruction without
> doing anything.
Could it be that the problem is not stale TLB, but a page directory
that is somehow invalid, e.g. belonging to the previous modprobe
(or whatever) instead of the running process?
My patch does load_cr3(next->pgd); so it explicitely loads something
there.
> In other words, make the code look like this, for testing:
>
> static inline void __native_flush_tlb_single(unsigned long addr)
> {
> __flush_tlb();
> }
Yup, will try it.
Thanks
--
Stano
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
