On Wed 2016-04-20 23:27:05, Michal Hocko wrote: > On Wed 20-04-16 17:29:22, Tejun Heo wrote: > > Hello, Michal. > > > > On Sun, Apr 17, 2016 at 08:07:48AM -0400, Michal Hocko wrote: > [...] > > > I liked your proposal when mem_cgroup_move_charge would be called from a > > > context which doesn't hold the problematic rwsem much more. Would that > > > be too intrusive for the stable backport? > > > > Yeah, I'm working on the fix but let's plug this one first as it seems > > really easy to trigger. I got a couple off-list reports (in and > > outside fb) of this triggering. > > Sure, I think we can use this for an immediate workaround. Nevertheless > we want to have a full fix and do not rely on this being the only > problem. I would eventually like to reintroduce the draining later when > we have a better fix because even though this is not a correctness > problem I think we should try hard to not leave anything behind. > > That being said: > Acked-by: Michal Hocko <mhocko@xxxxxxxx> Just for completeness. The problematic LTP test is running for hours with this patch. Feel free to add: Tested-by: Petr Mladek <pmladek@xxxxxxxx> Best Regards, Petr -- To unsubscribe from this list: send the line "unsubscribe cgroups" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
