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When libvirtd restarts it will attempt to reconnect to existing LXC containers. If it loads a XML state file for the container the container will appear running. If we fail to read the PID file, or fail to connect to the LXC monitor, we should be killing off the guest, but if the VMs cgroup does not exist any more, cleanup will get skipped. Reading the PID file is also pointless since the PID is in the XML statefile In lxcReconnectVM we do not need to read the PID file. If part of the reconnect process fails we need to run the VM terminate code as a safety net. In lxcVMTerminate, if we can't obtain the VM cgroup, we know the process has died, but we must still run lxcVMCleanup to clear out the virDomainObjPtr live state * src/lxc/lxc_driver.c: Fix cleanup of dead VMs on restart
LibVirt : simple API for virtualization
Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.
Daniel Veillard <veillard@redhat.com>