Hi all I am getting the following output when i try to use virt-install [root@localhost]# virt-install *** glibc detected *** /usr/bin/python: free(): invalid pointer: 0x08bea0a0 *** ======= Backtrace: ========= /lib/i686/nosegneg/libc.so.6[0x2f89b1] /lib/i686/nosegneg/libc.so.6(cfree+0x90)[0x2fc060] /usr/lib/libvirt.so.0[0xb2885e] /usr/lib/libvirt.so.0[0xb2a07b] /usr/lib/libvirt.so.0[0xb019d3] /usr/lib/python2.5/site-packages/libvirtmod.so(libvirt_virConnectOpen+0x66)[0xf09ce6] . . . . b7d25000-b7f25000 r--p 00000000 fd:00 312403 /usr/lib/locale/locale-archive b7f25000-b7fa9000 rw-p b7f25000 00:00 0 b7fb4000-b7fb5000 rw-p b7fb4000 00:00 0 bff2a000-bff4a000 rw-p bff2a000 00:00 0 [stack] Aborted My package versions : [root@localhost ~]# rpm -qa|grep libvirt libvirt-0.3.3-1.fc7 libvirt-python-0.3.3-1.fc7 [root@localhost ~]# uname -a Linux localhost.localdomain 2.6.20-2936.fc7xen #1 SMP Fri Sep 21 12:07:35 EDT 2007 i686 i686 i386 GNU/Linux [root@localhost ~]# rpm -qa|grep xen xen-libs-3.1.0-6.fc7 xen-devel-3.1.0-6.fc7 xen-3.1.0-6.fc7 kernel-xen-2.6.20-2936.fc7 kernel-xen-devel-2.6.20-2936.fc7 I have attached the full back trace if anyone is interested Any suggestions ?