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According to the following valgrind output, there seems to be a invalid limit for the iterator (captured on Fedora 19): ==3945== Invalid read of size 1 ==3945== at 0x1E1FA410: libxlVmStart (libxl_driver.c:475) ==3945== by 0x1E1FAD9A: libxlDomainCreateWithFlags (libxl_driver.c:2633) ==3945== by 0x5187D46: virDomainCreate (libvirt.c:9439) ==3945== by 0x13BAA6: remoteDispatchDomainCreateHelper (remote_dispatch.h:2910) ==3945== by 0x51DE5B9: virNetServerProgramDispatch (virnetserverprogram.c:435) ==3945== by 0x51D93E7: virNetServerHandleJob (virnetserver.c:165) ==3945== by 0x50F5BF4: virThreadPoolWorker (virthreadpool.c:144) ==3945== by 0x50F5670: virThreadHelper (virthreadpthread.c:161) ==3945== by 0x8046C52: start_thread (pthread_create.c:308) ==3945== by 0x8758E1C: clone (clone.S:113) ==3945== Address 0x23424d81 is 0 bytes after a block of size 1 alloc'd ==3945== at 0x4A08121: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so) ==3945== by 0x50B1F8C: virAllocN (viralloc.c:189) ==3945== by 0x1E1FA3CA: libxlVmStart (libxl_driver.c:468) ==3945== by 0x1E1FAD9A: libxlDomainCreateWithFlags (libxl_driver.c:2633) ==3945== by 0x5187D46: virDomainCreate (libvirt.c:9439) ==3945== by 0x13BAA6: remoteDispatchDomainCreateHelper (remote_dispatch.h:2910) ==3945== by 0x51DE5B9: virNetServerProgramDispatch (virnetserverprogram.c:435) ==3945== by 0x51D93E7: virNetServerHandleJob (virnetserver.c:165) ==3945== by 0x50F5BF4: virThreadPoolWorker (virthreadpool.c:144) ==3945== by 0x50F5670: virThreadHelper (virthreadpthread.c:161) ==3945== by 0x8046C52: start_thread (pthread_create.c:308) ==3945== by 0x8758E1C: clone (clone.S:113) ==3945== Related: https://bugzilla.redhat.com/show_bug.cgi?id=1013045 Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
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>