NOHZ tick-stop error: Non-RCU local softirq work is pending

[Paul E. McKenney]

Hello, Frederic,

Here is the last few months' pile of warnings from rcutorture runs.

							Thanx, Paul

[  255.098527] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #282!!!
[  414.534548] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 3798.654736] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 1718.589367] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 6632.777655] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 2873.688490] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 3081.738937] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 2673.597523] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 1467.372887] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[   34.371094] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 1147.260097] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 5066.699589] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[  816.338843] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[   34.338836] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 1234.111394] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[ 1282.109415] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[  239.215890] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[  367.918969] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[ 1461.037894] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[ 1503.810903] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[ 1503.811939] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[  699.514824] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[  751.681629] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[  287.770126] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[  287.771096] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[  648.009370] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[  924.733405] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[  924.734011] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[ 1743.197353] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #02!!!
[ 1528.161635] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[ 1528.162313] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[  265.201513] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[  473.137587] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #202!!!
[  187.375426] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!
[ 1361.544451] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #80!!!
[   79.519727] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #280!!!