We discussed that again via email. In summary:
- UAL and systemd units are non-overlapping use cases, and will not collide
at all in practical use cases.
- By itself, systemd only handles the "systemd" controller, which cgmanager
should always stay out of
- systemd units may configure cpu/memory/blkio cgroups with things like
CPUShares=; so in principle, the started service could then do a cgmanager call
to change these after the fact, but there's nothing stopping it from also doing
these changes in /sys/fs/cgroup/ directly. This isn't a security feature, but a
robustness/resource control one.
So what needs to happen:
1. Ensure cgmanager doesn't change the "systemd" controller. (Should not
happen in practice, but an explicit check can't hurt)
2. Ensure cgmanager doesn't change an existing cgroup setup at startup, only
upon request (which should already be true)
3. Start cgmanager via socket/bus activation or at boot.
** Changed in: cgmanager (Ubuntu)
Status: Won't Fix => Triaged
** Changed in: ubuntu-app-launch (Ubuntu)
Status: New => Invalid
** Summary changed:
- Unity8 fails to start applications under systemd init (cgmanager issue?)
+ Unity8 fails to start applications, cgmanager is not started under systemd
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https://bugs.launchpad.net/bugs/1400394
Title:
Unity8 fails to start applications, cgmanager is not started under
systemd
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