Re: stalling IO regression in linux 5.12

Chris Murphy
2022-08-10T18:43:07Z

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.

--
Chris Murphy