lxd 3.0.2-0ubuntu3 ADT test failure with linux 4.18.0-7.8

[Thadeu Lima de Souza Cascardo]

Testing failed on:
    amd64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic/cosmic/amd64/l/lxd/20180831_072844_6ea94@/log.gz
    arm64: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic/cosmic/arm64/l/lxd/20180831_074034_6ea94@/log.gz
    i386: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic/cosmic/i386/l/lxd/20180831_073216_6ea94@/log.gz
    ppc64el: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic/cosmic/ppc64el/l/lxd/20180831_072127_6ea94@/log.gz
    s390x: https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-cosmic/cosmic/s390x/l/lxd/20180831_072401_6ea94@/log.gz

[Stéphane Graber (stgraber)]

You need liblxc 3.0.2 to work with a 4.18 kernel.

That's because of a regression in the 4.18 kernel which the Ubuntu kernel team really ought to fix by reverting the unprivileged-mknod change.

[Thadeu Lima de Souza Cascardo (cascardo)]

That is failing with 4.17.0-9, the kernel is cosmic, as well. Does that contain that same unprivileged-mknod change?

Thanks.
Cascardo.

[Ubuntu Kernel Bot (ubuntu-kernel-bot)]

This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:

apport-collect 1790521

and then change the status of the bug to 'Confirmed'.

If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'.

This change has been made by an automated script, maintained by the Ubuntu Kernel Team.

[Stéphane Graber (stgraber)]

The new liblxc has now migrated, so may be worth retrying.