The one that seems to make the most difference to me is not having the kernel memory cache pages be marked executable. This cures an intermittent segfault I was seeing with git on the pa8800. Also note that if you apply only the speculative read prevention patch, you'll find the incidences of segfaults and cache nasties get worse (at least they do on ion) mainly because the aggressive TLB purging leaves the cache hardware with fewer lines to speculate, so it tends to be more aggressive about speculating them ... leading to more incidences. I find that the combination of the two patches cures all the segfaults I've been seeing in normal compiles and git operations. James -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html