This bug was fixed in the package lxc - 3.0.3-0ubuntu1~18.04.3
---------------
lxc (3.0.3-0ubuntu1~18.04.3) bionic; urgency=medium
* Fix tests issue by avoiding falling back to inexistent trusty LXC images
and using the bionic ones (LP: #1939537)
lxc (3.0.3-0ubuntu1~18.04.2) bionic; urgency=medium
* Cherry-pick upstream bugfixes (LP: #1848587 LP: #1886790):
- tests: use /dev/loop-control instead of /dev/network_latency
- This unbreaks adt-matrix / adt testing of Bionic hwe kernels
-- Andrei Gherzan <andrei.gher...@canonical.com> Fri, 05 May 2023
14:06:12 +0200
** Changed in: lxc (Ubuntu Bionic)
Status: Fix Committed => Fix Released
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https://bugs.launchpad.net/bugs/1886790
Title:
lxc 3.0.3-0ubuntu1~18.04.1 ADT test failure with B/5.4 kernels
(device_add_remove_test)
Status in ubuntu-kernel-tests:
New
Status in lxc package in Ubuntu:
Fix Released
Status in lxc source package in Bionic:
Fix Released
Bug description:
[ Impact ]
* The device_add_remove_test test fails on the affected series (e.g. Bionic).
* Having the test fixed for the affected series (for example, Bionic) will
allow us to run the LXC test suite without maintaining local changes for this
test.
[ Test Plan ]
* Run the affected test on an affected series (e.g. Bionic).
* The test should pass.
[ Where problems could occur ]
* The regression risk is very low, and the changes only affect the
tests, so the regression scope is minimal.
[ Other Info ]
Upstream drop of network_latency:
https://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git/commit/?id=c3082a674f46fe49383b157882c41dfabaa37113
Related to: https://bugs.launchpad.net/ubuntu/+source/lxc/+bug/1848587
Original bug report:
Testing failed on:
amd64:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/amd64/l/lxc/20200706_183234_ca65f@/log.gz
arm64:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/arm64/l/lxc/20200706_172136_71b68@/log.gz
ppc64el:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/ppc64el/l/lxc/20200706_191938_cedac@/log.gz
s390x:
https://objectstorage.prodstack4-5.canonical.com/v1/AUTH_77e2ada1e7a84929a74ba3b87153c0ac/autopkgtest-bionic/bionic/s390x/l/lxc/20200706_163359_98d4d@/log.gz
The failing test seems to be:
FAIL: lxc-tests: lxc-test-device-add-remove (0s)
---
Adding /dev/network_latency to the container (device_add_remove_test)
failed...
---
This is a regression from the 4.15/5.3 to 5.4 kernels in Bionic. Note
that this testcase is successful on Focal with the same kernel
version.
To manage notifications about this bug go to:
https://bugs.launchpad.net/ubuntu-kernel-tests/+bug/1886790/+subscriptions
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