[lxc-devel] Linux 4.0.2 and unpriv container problem

[Stéphane Graber]

On Mon, May 11, 2015 at 06:58:00PM +0900, KATOH Yasufumi wrote:
> After upgrading kernel to 4.0.2, when an unprivileged container is
> started, the kernel hangs up. (I use lxc 1.0.7 and today's master
> branch) 4.0 and 4.0.1 kernel is no problem.
> 
> I paste trace log at:
>   https://gist.github.com/tenforward/01670c4ee77f0bf4d44d
> 
> I reverted some commits from 4.0.2, it resolved.
>   https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.0.y&id=20e62ee6fa3da23a792ca31d4b68069060317260
>   https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.0.y&id=c076cbf218f3cb83dffe6982587d2b9751318962
>   https://git.kernel.org/cgit/linux/kernel/git/stable/linux-stable.git/commit/?h=linux-4.0.y&id=84b78514033ff22c443473214ab6d0508394cf7a
> 
> Do someone encounter the same problem? Is it a kernel bug?
> 
> Thanks,
> KATOH Yasufumi

I've had another user report hangs or panic-looking behavior on recent
4.0, that's likely the same issue.

Ccing Eric as he's the author of those kernel changes.

-- 
Stéphane Graber
Ubuntu developer
http://www.ubuntu.com
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