On Mon, May 17, 2010 at 12:50:01PM +0300, Ronen Shitrit wrote:

If a speculative prefetch occurs (eg, to prefetch the next ldr) it
could evict the dirty cache line that the str just wrote to.  Cache
replacement algorithms aren't always round-robin.

[Ronen Shitrit] only ldr around is the next line, which shouldn't
evict the current line, so I don't see any issue.

How can you say that the current line won't be evicted?  Do you know
the cache replacement algorithm for your CPU that well?