Messages in this thread | | | Date | Fri, 3 Apr 2020 10:54:18 -0400 | From | Tejun Heo <> | Subject | Re: Deadlock due to "cpuset: Make cpuset hotplug synchronous" |
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On Wed, Apr 01, 2020 at 10:00:31PM -0400, Qian Cai wrote: > > > > On Mar 25, 2020, at 3:19 PM, Tejun Heo <tj@kernel.org> wrote: > > > > On Wed, Mar 25, 2020 at 03:16:56PM -0400, Qian Cai wrote: > >> The linux-next commit a49e4629b5ed (“cpuset: Make cpuset hotplug synchronous”) > >> introduced real deadlocks with CPU hotplug as showed in the lockdep splat, since it is > >> now making a relation from cpu_hotplug_lock —> cgroup_mutex. > > > > Prateek, can you please take a look? Given that the merge window is just around > > the corner, we might have to revert and retry later if it can't be resolved > > quickly. > > Tejun, can you back off this commit now given it seems nobody is trying to rescue it?
Yeah, gonna revert it before sending out the pull request.
Thanks.
-- tejun
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