> Please retest with 2.6.13-rc6 or -rc5-mm1 and, if the problem > persists, please disable all PREEMPT options you might have enabled. It persists, and it goes away with either no preemption or voluntary preemption. See Bug #5061 <http://bugzilla.kernel.org/show_bug.cgi?id=5061> -Sanjoy