Re: [PATCH -tip V3 0/8] workqueue: break affinity initiatively

[Peter Zijlstra]

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.