I can reproduce the autopkgtest failure with: autopkgtest -sU --apt-pocket proposed python-systemd_234-2build1.dsc -- qemu ~/VM/ubuntu-16.04-32.img
on a local qemu. When it pulls in the systemd from -proposed I see: ... Failed to execute operation: Failed to activate service 'org.freedesktop.systemd1': timed out ... Trying to debugnow. -- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to systemd in Ubuntu. https://bugs.launchpad.net/bugs/1819728 Title: Please backport "fix race between daemon-reload and other commands #8803" to 16.04 (for UC16) and 18.04 (for UC18) Status in systemd package in Ubuntu: Fix Released Status in systemd source package in Xenial: Triaged Status in systemd source package in Bionic: Fix Committed Bug description: [Impact] On Ubuntu Core we recently hit the a race in daemon-reload and systemctl twice. This race is fixed in systemd upstream: "fix race between daemon-reload and other commands #8803". Note that this is a general problem in systemd with daemon-reload and systemctl commands, we just happen to hit it more often on Ubuntu Core but the test-case below explodes just fine on a normal Ubuntu release like 16.04 or 18.04 (not on 18.10+ as its fixed there). [TEST CASE] To reproduce its enough to run: for i in $(seq 50); do systemctl daemon-reload & systemctl start ssh & done This will result in "systemctl start ssh" hanging in ppoll. With the patch applied the hangs go away. [REGRESSION POTENTIAL] Low, this change is already in the systemd upstream and in use cosmic and later. The upstream fix is https://github.com/systemd/systemd/pull/8803 Full spread run with the fixed systemd in the "core" snap and a regression test: https://github.com/snapcore/snapd/pull/6595 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/systemd/+bug/1819728/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp
