linux-kernel - Re: [PATCH cgroup/for-4.4-fixes 2/3] cgroup: fix handling of multi-destination migration from subtree

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Date:	Wed, 2 Dec 2015 07:22:49 +0100
From:	Daniel Wagner <daniel.wagner@...-carit.de>
To:	Tejun Heo <tj@...nel.org>
CC:	Li Zefan <lizefan@...wei.com>,
	Johannes Weiner <hannes@...xchg.org>,
	<cgroups@...r.kernel.org>, <linux-kernel@...r.kernel.org>,
	Dave Jones <davej@...emonkey.org.uk>, <kernel-team@...com>,
	Aleksa Sarai <cyphar@...har.com>,
	Michal Hocko <mhocko@...nel.org>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Neil Horman <nhorman@...driver.com>
Subject: Re: [PATCH cgroup/for-4.4-fixes 2/3] cgroup: fix handling of
 multi-destination migration from subtree_control enabling

Hi Tejun,

On 12/01/2015 05:44 PM, Tejun Heo wrote:
> On Tue, Dec 01, 2015 at 08:02:23AM +0100, Daniel Wagner wrote:
>> I was not able to verify if these two patches are fixing it. I don't see
>> the call trace on mainline only when using cgroup/review-xt_cgroup2
>> review branch.
>>
>> So I ported it to review-xt_croup2 with only a small merge conflict for
>> in netclassid_cgroup.c. No fun though, I still see it.
> 
> It also needs the previous ref fix patch and Oleg's race fix too.  Can
> you please test the following branch?
> 
>   git://git.kernel.org/pub/scm/linux/kernel/git/tj/cgroup.git review-pids-fixes

First I verified that I see the stack trace using v4.4-rc1. Then I
forwarded to review-pids-fixes and all looks good now.

You can add a

Tested-by: Daniel Wagner <daniel.wagner@...-carit.de>

if you like.

Thanks!
Daniel

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