Missing cache flush.

[James Sutherland]

> On Tue, Jun 05, 2001 at 07:01:28PM +0200, Jamie Lokier wrote:
>
>     Whether this works depends on the cache line replacement policy.
>     It will always work with LRU, for example, and probably
>     everything else that exists.  But it is not guaranteed, is it?

LFU, if used, wouldn't be flushed by this trick... Potentially, you could
have a slice of kernel interrupt handler sitting in a cache line, having
been accessed $BIG_NUMBER times... (Does anything actually use this
approach, though???)


James.