Messages in this thread | | | From | Kurt Kanzenbach <> | Subject | Re: stress-ng --hrtimers hangs system | Date | Fri, 05 Jun 2020 14:57:06 +0200 |
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Hi Vladimir,
On Fri Jun 05 2020, Vladimir Oltean wrote: > Hi, > > I was testing stress-ng on an ARM64 box and I found that it can be killed instantaneously with a --hrtimers 1 test: > https://github.com/ColinIanKing/stress-ng/blob/master/stress-hrtimers.c > The console shell locks up immediately after starting the process, and I get this rcu_preempt splat after 21 seconds, > letting me know that the grace-periods kernel thread could not run:
interesting. Just tested this on an ARM64 box with v5.6-rt and the stress-ng hrtimer test works fine. No lockups, cyclictest results are looking good. So maybe this is v5.7 related.
Thanks, Kurt [unhandled content-type:application/pgp-signature] | |