systemd/248.3-1ubuntu8.2 ADT test failure (tests-in-lxd) with linux/5.13.0-37.42

[Kleber Sacilotto de Souza]

This is a scripted bug report about ADT failures while running systemd tests for linux/5.13.0-37.42 on impish. Whether this is caused by the dep8 tests of the tested source or the kernel has yet to be determined.

Testing failed on:
    amd64: https://autopkgtest.ubuntu.com/results/autopkgtest-impish/impish/amd64/s/systemd/20220317_104248_4bc6b@/log.gz
    arm64: https://autopkgtest.ubuntu.com/results/autopkgtest-impish/impish/arm64/s/systemd/20220316_141606_ab727@/log.gz
    ppc64el: https://autopkgtest.ubuntu.com/results/autopkgtest-impish/impish/ppc64el/s/systemd/20220317_110143_b6ced@/log.gz
    s390x: https://autopkgtest.ubuntu.com/results/autopkgtest-impish/impish/s390x/s/systemd/20220317_103032_3d4bf@/log.gz

The "tests-in-lxd" testcase is failing with all kernels in Impish:

test_no_failed (__main__.ServicesTest)
No failed units ... -------- journal for failed service snap-lxd-22662.mount -----------
-- Journal begins at Thu 2022-03-17 09:54:14 UTC, ends at Thu 2022-03-17 10:01:49 UTC. --
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: Mounting Mount unit for lxd, revision 22662...
Mar 17 10:01:43 autopkgtest-lxd-oolwau mount[91]: mount: /snap/lxd/22662: mount failed: Operation not permitted.
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: snap-lxd-22662.mount: Mount process exited, code=exited, status=1/FAILURE
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: snap-lxd-22662.mount: Failed with result 'exit-code'.
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: Failed to mount Mount unit for lxd, revision 22662.
-------- journal for failed service snap-snapd-15177.mount -----------
-- Journal begins at Thu 2022-03-17 09:54:14 UTC, ends at Thu 2022-03-17 10:01:49 UTC. --
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: Mounting Mount unit for snapd, revision 15177...
Mar 17 10:01:43 autopkgtest-lxd-oolwau mount[92]: mount: /snap/snapd/15177: mount failed: Operation not permitted.
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: snap-snapd-15177.mount: Mount process exited, code=exited, status=1/FAILURE
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: snap-snapd-15177.mount: Failed with result 'exit-code'.
Mar 17 10:01:43 autopkgtest-lxd-oolwau systemd[1]: Failed to mount Mount unit for snapd, revision 15177.
FAIL
[...]
======================================================================
FAIL: test_no_failed (__main__.ServicesTest)
No failed units
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/tmp/autopkgtest.HBv169/build.sBq/real-tree/debian/tests/boot-and-services", line 69, in test_no_failed
    self.assertEqual(failed, [])
AssertionError: Lists differ: ['snap-lxd-22662.mount loaded failed fai[119 chars]177'] != []

First list contains 2 additional elements.
First extra element 0:
'snap-lxd-22662.mount loaded failed failed Mount unit for lxd, revision 22662'

+ []
- ['snap-lxd-22662.mount loaded failed failed Mount unit for lxd, revision '
- '22662',
- 'snap-snapd-15177.mount loaded failed failed Mount unit for snapd, revision '
- '15177']

This testcase started to fail with the latest re-spin of the kernels (uploaded on mar-16), however the only patch applied between the previous kernels and the current ones is a CVE fix which is unlikely to be causing this failure:

"ipv6: fix skb drops in igmp6_event_query() and igmp6_event_report()"
https://git.launchpad.net/~ubuntu-kernel/ubuntu/+source/linux/+git/impish/commit/?id=da5043b3ed2889300211ba35d5a7d2f3b9255d1b

[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 1965293

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.

[Brian Murray (brian-murray)]

Ubuntu 21.10 (Impish Indri) has reached end of life, so this bug will not be fixed for that specific release.

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Nick Rosbrook (enr0n)]

This was fixed in bug 1967576, so I am marking this a duplicate of that.