On Fri, Jan 15, 2021 at 10:11:51AM +0100, Peter Zijlstra wrote: > On Tue, Jan 12, 2021 at 03:53:24PM -0800, Paul E. McKenney wrote: > > An SRCU-P run on the new series reproduced the warning below. Repeat-by: > > > > tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 10 > > --configs "112*SRCU-P" --bootargs > > "rcupdate.rcu_cpu_stall_suppress_at_boot=1 torture.disable_onoff_at_boot > > rcupdate.rcu_task_stall_timeout=30000 rcutree.softirq=0" --trust-make > > Lemme go wake up an EX ;-)
Whee, rescuer thread goes wobbly... took a few hours but there you have it. All I've got so far is fugly, gotta think harder.