On Mon, May 28, 2007 at 11:05:13AM +0100, Russell King wrote: > With Lennert's new program, I get mostly: > > firstfirstfirst > firstfirstfirst > firstfirstfirst > > but occasionally: > > firstfirstfirst > firstfirstfirst > secondsecondsec > > However, if I open code the memcpy() in the MAPREAD to copy one word > at a time, then I reliably get the "secondsecondsec" line. But if I > convert the memcpy() in MAPWRITE in the same way, I'm back to mostly > getting the failure with the occasional success. Utterly confused.
Maybe your caches are no-allocate-on-write and glibc's memcpy() loads from the destination addresses to force line allocation? - To unsubscribe from this list: send the line "unsubscribe linux-arch" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
