Messages in this thread | | | Date | Mon, 15 Jan 2001 00:56:10 -0200 | From | Ralf Baechle <> | Subject | Re: Subtle MM bug |
| |
On Fri, Jan 12, 2001 at 09:11:43PM +0000, Russell King wrote:
> Eric W. Biederman writes: > > Hmm. I would think that increasing the logical page size in the kernel > > would be the trivial way to handle virtual aliases. (i.e.) with a large > > enough page size you can't actually have a virtual alias. > > There are types of caches out there that no matter how large the page size, > you will always have alias issues. These are ones where the cache lines > are indexed independent of virtual address (and therefore can have funny > cache line replacement algorithms). > > And yes, you guessed which processor has it. ;)
I recently spoke with some CPU architecture researcher at some university about cache architectures; I suspect in the near future we'll see more funny cache indexing and replacment algorithems ...
Ralf
-- "Embrace, Enhance, Eliminate" - it worked for the pope, it'll work for Bill. - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/
| |