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In some error situations, the function testDomainRestoreFlags() could unlock the test driver mutex without first locking it. This patch moves the lock operation earlier, so that it occurs before any potential jump down to the unlock call. I found this problem while auditing the test driver lock usage to determine the cause of a hang while running the following test: cd tests; while true; do printf x; ./undefine; done This patch *does not* solve that problem, but we now understand its actual source, and danpb is working on a patch.
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>