On Mon, Jan 29, 2018 at 09:20:48AM +0100, Sebastian Sewior wrote: > On 2018-01-26 14:09:17 [-0800], Paul E. McKenney wrote: > > find this one. ;-) But it did pass rcutorture testing for a great many > > years, didn't it? :-/ > > It started to trigger better (or at all) on our test box with > modprobe kvm_intel preemption_timer=n > > on the host kernel so maybe a completely unrelated change helped to > trigger this.
Good point! And testing continues, currently at 108 hours of TREE01 without any waylayed timers, so looking good! ;-) Just kicked off another 70 hours worth. Thanx, Paul