Messages in this thread | | | Date | Thu, 10 Jul 2008 10:26:02 -0700 | From | Max Krasnyansky <> | Subject | Re: [RFC][PATCH] CGroups: Add a per-subsystem hierarchy lock |
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Max Krasnyansky wrote: > > Paul Menage wrote: >> On Tue, Jul 1, 2008 at 8:55 PM, Max Krasnyansky <maxk@qualcomm.com> wrote: >>> I was about to say "yeah, looks good" and then tried a couple of >>> different hot-plug scenarious. >>> We still have circular locking even with your patch >>> >> What sequence of actions do you do? I've not been able to reproduce a >> lockdep failure. > > mkdir /dev/cpuset > mount -t cgroup -o cpuset cpuset /dev/cpuset > mkdir /dev/cpuset/0 > mkdir /dev/cpuset/1 > echo 0-2 > /dev/cpuset/0/cpuset.cpus > echo 3 > /dev/cpuset/1/cpuset.cpus > echo 0 > /dev/cpuset/cpuset.sched_load_balance > echo 0 > /sys/devices/system/cpu/cpu3/online > > I just tried it again and got exact same lockdep output that I sent before.
Paul, any luck with that ?
Max
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