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docs: Explain how to debug libvirt initialization problems (RHBZ#680031).
author
Richard W.M. Jones
<rjones@redhat.com>
Thu, 11 Aug 2011 12:11:02 +0000
(13:11 +0100)
committer
Richard W.M. Jones
<rjones@redhat.com>
Thu, 11 Aug 2011 12:11:02 +0000
(13:11 +0100)
virt-top/virt-top.pod
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will probably see a steady "background noise" of RX packets even when
the network interface is idle or down. These are caused by STP
packets generated by the bridge.
the network interface is idle or down. These are caused by STP
packets generated by the bridge.
+=head2 DEBUGGING LIBVIRT ISSUES
+
+virt-top tries to turn libvirt errors into informative messages.
+However if libvirt initialization fails then this is not possible.
+Instead you will get an obscure error like:
+
+ libvir: error : Unknown failure
+ Fatal error: exception Libvirt.Virterror(...)
+
+To see the cause of libvirt errors in more detail, enable libvirt
+debugging by setting this environment variable:
+
+ export LIBVIRT_DEBUG=1
+
=head1 SEE ALSO
L<top(1)>,
=head1 SEE ALSO
L<top(1)>,