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Ján Tomko
9846402116
Don't start a nested job in qemuMigrationPrepareAny
This nested job is canceled by the first ExitMonitor call (even though it was not created by the corresponding EnterMonitor call), and again in qemuMigrationPrepareAny if qemuProcessStart failed. This can lead to a crash if the vm object was disposed of before calling qemuDomainRemoveInactive: 0 ..62bc in virClassIsDerivedFrom (klass=0xdeadbeef, parent=0x7ffce4cdd270) at util/virobject.c:166 1 ..6666 in virObjectIsClass at util/virobject.c:362 2 ..66b4 in virObjectLock at util/virobject.c:314 3 ..477e in virDomainObjListRemove at conf/domain_conf.c:2359 4 ..7a64 in qemuDomainRemoveInactive at qemu/qemu_domain.c:2087 5 ..956c in qemuMigrationPrepareAny at qemu/qemu_migration.c:2469 This was added by commit e4e2822, exposed by 5a4c237 and c7ac251. https://bugzilla.redhat.com/show_bug.cgi?id=1018267
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>
Description
Libvirt provides a portable, long term stable C API for managing the
virtualization technologies provided by many operating systems. It
includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware
vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER
Hypervisor.
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