cgroup: remove cgroup directory leading kernel crash in kill_css

Daniel Axtens daniel.axtens at
Sun Feb 11 22:27:16 UTC 2018

Hi Seth,

Ah, that got sent to me directly for some reason:

> Launchpad bug:

I'm happy to prepare the SRU but I was going to have a discussion on
the bug about who would test the proposed kernel first.


On Sat, Feb 10, 2018 at 1:22 AM, Seth Forshee
<seth.forshee at> wrote:
> On Thu, Feb 08, 2018 at 08:08:12AM +0000, haibinzhang(张海斌) wrote:
>> Hi,
>> We got feedback from customer that cvm(cloud virtual machine) crashed when using kubelet updating container-service in ubuntu xenial. Logs show as follow.
>> We find a patch (commit 33c35aa4817864e056fd772230b0c6b552e36ea2) in linux mainline, which can indeed fix this bug. But ubuntu-xenial.git has not merged it yet.
>> Do you guys have a plan for merging?
> The commit looks reasonable, though it's only tagged for 4.5+ and xenial
> is only 4.4 (assuming you aren't on an hwe kernel) which likely explains
> why we didn't get it in xenial. In any case, for SRU you need a bug in
> launchpad. If you don't have a bug already please file one, then point
> us at your bug.
> Thanks,
> Seth
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