Public bug reported:
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".
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.
** Affects: systemd (Ubuntu)
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: New
** Affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Patch added: "debdiff with a port of the fix in PR#8803"
https://bugs.launchpad.net/bugs/1819728/+attachment/5245665/+files/fix-systemctl-race-8803.debdiff
** Summary changed:
- Please backport " fix race between daemon-reload and other commands #8803 "
+ Please backport "fix race between daemon-reload and other commands #8803" to
16.04 (for UC16)
** Also affects: systemd (Ubuntu Bionic)
Importance: Undecided
Status: New
** Also affects: systemd (Ubuntu Xenial)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1819728
Title:
Please backport "fix race between daemon-reload and other commands
#8803" to 16.04 (for UC16)
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