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Steps to reproduce this bug:
# cat usb.xml
<hostdev mode='subsystem' type='usb'>
<source>
<address bus='0x001' device='0x003'/>
</source>
</hostdev>
# virsh attach-device vm1 usb.xml
error: Failed to attach device from usb.xml
error: server closed connection:
The reason of this bug is that we set data.cgroup to NULL, and this will cause
libvirtd crashed.
Signed-off-by: Wen Congyang <wency@cn.fujitsu.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>