---
 mm/slub.c |   11 +++++++++--
 1 file changed, 9 insertions(+), 2 deletions(-)

Index: linux-2.6.21-rc6/mm/slub.c
===================================================================
--- linux-2.6.21-rc6.orig/mm/slub.c	2007-04-11 12:19:40.000000000 -0700
+++ linux-2.6.21-rc6/mm/slub.c	2007-04-11 12:22:50.000000000 -0700
@@ -1201,9 +1201,16 @@ have_slab:
 		SetPageActive(page);
 
 #ifdef CONFIG_SMP
-		if (!atomic_read(&s->cpu_slabs) && keventd_up()) {
+		if (!atomic_read(&s->cpu_slabs)) {
+			/* Note that we have active cpu slabs */
 			atomic_inc(&s->cpu_slabs);
-			schedule_delayed_work(&s->flush, 30 * HZ);
+			if (keventd_up())
+				schedule_delayed_work(&s->flush, 30 * HZ);
+			/* else we may be running for awhile without
+			 * a slab reaper but this only affects boot
+			 * slabs. The next flush_all will restore things
+			 * to normal.
+			 */
 		}
 #endif
 		goto redo;