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8e7d14953c
Since the monitor I/O is processed out of band from the main thread(s) invoking monitor commands, the virDomainObj may be deleted by the I/O thread. The qemuDomainObjBeginJob takes an extra reference to protect against final deletion, but this reference is released by the corresponding EndJob call. THus after the EndJob call it may not be valid to reference the virDomainObj any more. To allow callers to detect this, the EndJob call is changed to return the remaining reference count. * src/conf/domain_conf.c: Make virDomainObjUnref return the remaining reference count * src/qemu/qemu_driver.c: Avoid referencing virDomainObjPtr after qemuDomainObjEndJob if it has been deleted.
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>