[lxc-users] Preparing for LXC 1.0.8

[Stéphane Graber]

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.
> 
> As discussed in the lxc-users thread, it is uncertain whether the bug
> resides in lxc or the kernel.
> 
> A couple of possible ways to circumvent the bug:
> 
> (1) Make lxc-1.0.8 depend upon kernel <= 3.17

Userspace packages aren't allowed to depend on specific kernel version
in Ubuntu. Plus, since only overlay is a problem, that'd be wrong
anyway.

> (2) Upgrade the version of lxc in ubuntu-14.04 from the 1.0 branch to the
> 1.1 branch.

Not an option either as major release updates and feature introduction
isn't allowed in stable Ubuntu releases.

We do have a PPA though for those who do need 1.1.


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 did cherry-pick quite a lot of overlay stuff so I'm wondering what
we'd be missing that 1.1 has...

> -Oleg


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