[lxc-users] Preparing for LXC 1.0.8

[Ranjib Dey]

im hitting the sysfs mount failure due to permissions, for both privileged
and unprivileged unprivileged containers

lxc: 1.0.7+stable~20150828-2252-0ubuntu1~trusty
kernel: 3.16.0-46
ubuntu 14.04.03



On Wed, Sep 2, 2015 at 4:54 AM, KATOH Yasufumi <karma at jazz.email.ne.jp>
wrote:

> >>> On Mon, 31 Aug 2015 13:46:01 -0400
>     in message   "Re: [lxc-users] Preparing for LXC 1.0.8"
>                   Stéphane Graber-san wrote:
>
> > On Tue, Sep 01, 2015 at 03:01:07AM +1000, overlay fs wrote:
> > > The bug,
> > >
> > > 'Failed to whiteout' error in Trusty with 3.19 kernel
> > >
> https://lists.linuxcontainers.org/pipermail/lxc-users/2015-August/009854.html
> > > https://bugs.launchpad.net/lxc/+bug/1486073
> > > https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1490267
> > >
> > > is present in lxc versions 1.0.7 and 1.0.8, but seems to have been
> resolved
> > > in version 1.1.  While this bug is not stricly a regression in
> lxc-1.0.8,
> > > the bug was latent prior to ubuntu-14.04.3 since previous 14.04.x
> releases
> > > did not use the 3.19 kernel.
>
>   :(snip)
>
> > If the whiteout problem is a kernel bug, there's little we can do, if
> > it's a lxc bug, then we should fix this and get the fix into the
> > stable-1.0 branch.
>
> I tried running lxc-1.0.7 on 3.19.8 kernel.
>
> * lxc-1.0.7 with patch:
>
> https://github.com/lxc/lxc/commit/388db0d9ebf1b24c538a68813077b7ace31db68f
>   (The module name of 3.19 kernel is "overlay". So we need this patch.)
> * vanilla kernel 3.19.8 with patch:
>   https://gist.github.com/tenforward/6be31831135ad942049d
>   (This patch allow root in userns to mount overlayfs.)
>
> Unpriv overlayfs container work fine.
>
> $ uname -a
> Linux enterprise 3.19.8 #2 SMP PREEMPT Wed Sep 2 17:54:50 JST 2015 x86_64
> GNU/Linux
> $ lxc-start --version
> 1.0.7
> $ lxc-clone -o ct01 -n test -s -B overlayfs
> Created container test as snapshot of ct01
> $ lxc-start -n test -d
> $ lxc-attach -n test -- apt-get update
> Ign http://archive.ubuntu.com trusty InRelease
> Ign http://security.ubuntu.com trusty-security InRelease
> Ign http://archive.ubuntu.com trusty-updates InRelease
>   :(snip)
> Fetched 2244 kB in 7s (320 kB/s)
> Reading package lists... Done
>
> I guess it is the bug of linux-lts-vivid kernel in Ubuntu.
>
> I also try running HEAD of stable-1.0(1.0.8). The behavior is the
> same.
>
> Thanks,
> KATOH Yasufumi
> _______________________________________________
> lxc-users mailing list
> lxc-users at lists.linuxcontainers.org
> http://lists.linuxcontainers.org/listinfo/lxc-users
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