On Wed, Aug 10, 2022, at 2:42 PM, Chris Murphy wrote: > On Wed, Aug 10, 2022, at 2:33 PM, Chris Murphy wrote: >> On Wed, Aug 10, 2022, at 1:48 PM, Josef Bacik wrote: >> >>> To help narrow this down can you disable any IO controller you've got enabled >>> and see if you can reproduce? If you can sysrq+w is super helpful as it'll >>> point us in the next direction to look. Thanks, >> >> I'm not following, sorry. I can boot with >> systemd.unified_cgroup_hierarchy=0 to make sure it's all off, but we're >> not using an IO cgroup controllers specifically as far as I'm aware. > > OK yeah that won't work because the workload requires cgroup2 or it won't run. Booted with cgroup_disable=io, and confirmed cat /sys/fs/cgroup/cgroup.controllers does not list io. I'll rerun the workload now. Sometimes reproduces fast, other times a couple hours. -- Chris Murphy
