Hi Randolph, As you may already read before, I experiment pb with SMP kernel 2.4 on a N server and we suspect a tlb management pb. On the other hand, I read your patch: http://lists.parisc-linux.org/pipermail/parisc-linux-cvs/2003-September/033367.html May I ask you more details on the reason of this patch? Could (would) it be back-ported to 2.4? Thanks in advance, Joel