[pve-devel] [PATCH-SERIES qemu-server 0/3] migration: conntrack: fix two edge cases

[Fiona Ebner]

Because of a systemd issue [0], when a service that's 'partOf' a scope
fails, the scope itself might end up being left-over, even after all
processes in the scope exit. In particular, this can happen for the
'$vmid.scope' when the 'pve-dbus-vmstate@$vmid.service' fails.

As reported in the community forum [1], it might happen that the
dbus-vmstate object is not added (quickly enough) to the target QEMU
instance, before the migration state is loaded. This would result in
a crash of the target instance.

[0]: https://github.com/systemd/systemd/issues/39141
[1]: https://forum.proxmox.com/threads/172588/

qemu-server:

Fiona Ebner (3):
  dbus vmstate: add missing includes
  migration: conntrack: work around systemd issue where scope for VM
    might become blocked
  migration: conntrack: avoid crash when dbus-vmstate object cannot be
    added (quickly enough)

 src/PVE/QemuServer.pm             |  6 ++++++
 src/PVE/QemuServer/DBusVMState.pm | 15 +++++++++++++++
 2 files changed, 21 insertions(+)


Summary over all repositories:
  2 files changed, 21 insertions(+), 0 deletions(-)

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