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This bug has been copied from bug #711206 and has been proposed
to be backported to 6.1 z-stream (EUS).

In POST:
http://post-office.corp.redhat.com/archives/rhvirt-patches/2011-August/msg00147.html

tested with 
libvirt-0.8.7-18.el6_1.1.x86_64
qemu-kvm-0.12.1.2-2.160.el6_1.7.x86_64
kernel-2.6.32-131.12.1.el6.x86_64

According to bug 711206

$ cat > demo.c <<EOF
#include <libvirt/libvirt.h>
#include <stdlib.h>

int main(void) {
  virInitialize();
  virDomainDestroy(NULL);
}

EOF

$ gcc -o demo -lvirt demo.c

This is what you should see for correct behaviour:

$ LIBVIRT_DEBUG=1 ./demo 2>&1 | grep Destroy
13:58:15.178: 11291: debug : virDomainDestroy:2049 : dom=(nil), (VM:
name=(null), uuid=), 
libvir: Domain error : invalid domain pointer in virDomainDestroy

So set bug status to VERIFIED

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on therefore solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHSA-2011-1197.html