[libvirt] [Libvirt] segfault with patch "libxl: fix framebuffer port setting for HVM domains"

Hello, I encountered segfaults with libvirt + libxl with this specific patch : http://libvirt.org/git/?p=libvirt.git;a=commitdiff;h=b55cc5f4e31b488c4f9c... My Libvirt/Xen environment (on a slackware64-14.1) : virsh # version Compiled against library: libvirt 1.2.6 Using library: libvirt 1.2.6 Using API: Xen 1.2.6 Running hypervisor: Xen 4.4.0 My Libvirt "configure line" : ./configure \ --prefix=/usr \ --libdir=/usr/lib64 \ --bindir=/usr/sbin \ --sbindir=/usr/sbin \ --sysconfdir=/etc \ --localstatedir=/var \ --mandir=/usr/man \ --docdir=/usr/doc/libvirt-1.2.6 \ --enable-static=no \ --enable-shared=yes \ --with-yajl \ --with-qemu-group=root \ --with-init-script=none \ --without-xen \ --without-xenapi \ --with-libxl The XML of my VM : <domain type='xen'> <name>vm.infra.ld</name> <uuid>0b648359-099a-4d64-ba7a-12f32fb4f3dc</uuid> <memory unit='KiB'>1048576</memory> <currentMemory unit='KiB'>1048576</currentMemory> <vcpu placement='static'>2</vcpu> <os> <type arch='x86_64' machine='xenfv'>hvm</type> <loader>/usr/lib/xen/boot/hvmloader</loader> <boot dev='network'/> <boot dev='hd'/> </os> <features> <acpi/> <apic/> <pae/> <hap/> <viridian/> </features> <clock offset='variable' adjustment='0' basis='utc'> <timer name='hpet' present='no'/> </clock> <on_poweroff>destroy</on_poweroff> <on_reboot>restart</on_reboot> <on_crash>restart</on_crash> <devices> <emulator>/usr/lib/xen/bin/qemu-dm</emulator> <disk type='block' device='disk'> <driver name='phy'/> <source dev='/dev/data/vm.infra.ld-disk'/> <target dev='hda' bus='ide'/> <address type='drive' controller='0' bus='0' target='0' unit='0'/> </disk> <controller type='ide' index='0'/> <interface type='bridge'> <mac address='00:16:3e:xx:xx:xx'/> <source bridge='xenbr0'/> <script path='/etc/xen/scripts/vif-openvswitch'/> </interface> <serial type='pty'> <target port='0'/> </serial> <console type='pty'> <target type='serial' port='0'/> </console> <input type='mouse' bus='ps2'/> <input type='keyboard' bus='ps2'/> <graphics type='vnc' port='-1' autoport='yes' listen='0.0.0.0' keymap='fr'> <listen type='address' address='0.0.0.0'/> </graphics> <video> <model type='cirrus' vram='9216' heads='1'/> </video> </devices> </domain> The VM starts fine with "virsh start" (cf attached libxl log), the VNC process is listening as requested on 0.0.0.0 but whenever I open a new virsh cli and send a command (e.g. "list"), libvirtd segfaults. I attached a gdb trace to this mail. If I rebuild libvirt without the patch mentioned earlier, no more segfaults, but of course the VNC process is listening on 127.0.0.1 instead of requested 0.0.0.0 when I start the VM. I may have done something wrong but don't understand what. Regards, Chris