Re: [PATCH?] race between cgroup_subsys->fork() and cgroup_migrate()

Tejun Heo
2015-11-25T19:54:19Z

On Wed, Nov 25, 2015 at 02:51:38PM -0500, Tejun Heo wrote:
> Sounds perfect. As this needs to go through -stable, can you please
> resend the patch with proper description and SOB? Please also update
> the now incorrect comment in can_attach.

Ooh, the patch triggers RCU warning from task_css(). It's spurious
and I think the right thing to do at least for now is using
task_css_check() and explain what's going on.

Thanks.

--
tejun