Marking as invalid as this wasn't an LXC bug but a kernel bug.
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https://bugs.launchpad.net/bugs/1931064
Title:
lxc autotest failure with kernel >= 5.13
Status in ubuntu-kernel-tests:
New
Status in lxc package in Ubuntu:
Invalid
Bug description:
The lxc autotest is failing with the following error(s) on the latest
kernel linux-unstable 5.13:
FAIL: lxc-tests: lxc-test-apparmor (1s)
---
failed - opened /sys/kernel/uevent_helper
---
PASS: lxc-tests: lxc-test-apparmor-generated (0s)
PASS: lxc-tests: lxc-test-apparmor-mount (29s)
FAIL: lxc-tests: lxc-test-attach (1s)
---
attach.c: 410: main: Using "/tmp/attach_x8lgO2" as temporary log file for
container lxc-attach-test
I was able to bisect the problem and found that the offending commit
is:
bfb819ea20ce8bbeeba17e1a6418bf8bda91fc28 ("proc: Check
/proc/$pid/attr/ writes against file opener")
This commit looks like a sane fix, so simply reverting it in the
kernel doesn't seem a viable solution.
I think we should address and understand the issue in the lxc package.
Detailed log of the failure:
https://autopkgtest.ubuntu.com/results/autopkgtest-impish-canonical-
kernel-team-bootstrap/impish/amd64/l/lxc/20210601_082733_a3ae4@/log.gz
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