Hi. On Mon, Apr 03, 2023 at 01:41:33PM -0400, Waiman Long <longman@xxxxxxxxxx> wrote: > This patch is actually not related to the CLONE_INTO_GROUP problem in patch > 1. It is a generic problem when multiple users are moving threads into > cgroup.threads of the same or different cpusets simultaneously. I meant this: __cgroup_procs_write cgroup_kn_lock_live mutex_lock(&cgroup_mutex) and (more succintly) cgroup_update_dfl_csses lockdep_assert_held(&cgroup_mutex) Even the threaded migrations should be synchronized here. Can you please explain in more detail what's the problematic case? > I don't believe this patch has a dependency on patch 1. (I meant the opposite, patch 1 would depend in this 3/3. But maybe this one isn't need.) Michal
Attachment:
signature.asc
Description: PGP signature
