On Tue, 2011-11-22 at 00:39 -0800, Christian Kujau wrote: > On Tue, 22 Nov 2011 at 08:48, Eric Dumazet wrote: > > > --- linux-2.6.orig/mm/slub.c 2011-11-21 21:15:41.575673204 -0600 > > > +++ linux-2.6/mm/slub.c 2011-11-21 21:16:33.442336849 -0600 > > > @@ -1969,7 +1969,7 @@ > > > page->pobjects = pobjects; > > > page->next = oldpage; > > > > > > - } while (this_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); > > > + } while (irqsafe_cpu_cmpxchg(s->cpu_slab->partial, oldpage, page) != oldpage); > > > stat(s, CPU_PARTIAL_FREE); > > > return pobjects; > > > } > > Is this a patch to try for my PowerPC machine? With CONFIG_SLUB=y? > > > For x86, I wonder if our !X86_FEATURE_CX16 support is correct on SMP > > machines. > > I'm on UP, don't have any x68/SMP machines to test atm :( Yes, please try the patch with SLUB and let us know if it makes a difference. Eric, Christoph, the generic version of this_cpu_cmpxchg() is not interrupt safe, so I suppose this patch should go in right ? Cheers, Ben. -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Fight unfair telecom internet charges in Canada: sign http://stopthemeter.ca/ Don't email: <a href=mailto:"dont@xxxxxxxxx";> email@xxxxxxxxx </a>