qemuDomainAttachVirtioDiskDevice passes NULL as domainDef which is later referenced in qemuDomainAttachVirtioDiskDevice: Program terminated with signal 11, Segmentation fault. #0 qemuBuildDeviceAddressStr (buf=buf@entry=0xb646de78, info=info@entry=0xb0a02360, qemuCaps=qemuCaps@entry=0xb8fdfdc8, domainDef=<error reading variable: Unhandled dwarf expression opcode 0xfa>, domainDef=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at qemu/qemu_command.c:2869 2869 for (i = 0; i < domainDef->ncontrollers; i++) { (gdb) bt #0 qemuBuildDeviceAddressStr (buf=buf@entry=0xb646de78, info=info@entry=0xb0a02360, qemuCaps=qemuCaps@entry=0xb8fdfdc8, domainDef=<error reading variable: Unhandled dwarf expression opcode 0xfa>, domainDef=<error reading variable: Unhandled dwarf expression opcode 0xfa>) at qemu/qemu_command.c:2869 #1 0xb18ad6f8 in qemuBuildDriveDevStr (def=def@entry=0x0, disk=disk@entry=0xb0a02288, bootindex=bootindex@entry=0, qemuCaps=0xb8fdfdc8) at qemu/qemu_command.c:4316 #2 0xb18d097f in qemuDomainAttachVirtioDiskDevice (conn=conn@entry=0xb90129a8, driver=driver@entry=0xb8fe29b8, vm=vm@entry=0xb8fe0c40, disk=disk@entry=0xb0a02288) at qemu/qemu_hotplug.c:278 #3 0xb193f7ba in qemuDomainAttachDeviceDiskLive (dev=0xb0a35308, vm=0xb8fe0c40, driver=0xb8fe29b8, conn=0xb90129a8) at qemu/qemu_driver.c:6356 #4 qemuDomainAttachDeviceLive (dev=0xb0a35308, vm=0xb8fe0c40, dom=<optimized out>) at qemu/qemu_driver.c:6418 #5 qemuDomainAttachDeviceFlags (dom=dom@entry=0xb0a020b8, xml=xml@entry=0xb90953f0 "<disk type='file' device='disk'>\n <source file='/var/lib/jenkins/jobs/libvirt-tck-build/workspace/scratchdir/200-disk-hotplug/extra.img'/>\n <target dev='vdb' bus='virtio'/>\n</disk>\n", flags=3103664568, flags@entry=1) at qemu/qemu_driver.c:7079 #6 0xb193f9cb in qemuDomainAttachDevice (dom=0xb0a020b8, xml=0xb90953f0 "<disk type='file' device='disk'>\n <source file='/var/lib/jenkins/jobs/libvirt-tck-build/workspace/scratchdir/200-disk-hotplug/extra.img'/>\n <target dev='vdb' bus='virtio'/>\n</disk>\n") at qemu/qemu_driver.c:7120 #7 0xb7244827 in virDomainAttachDevice (domain=domain@entry=0xb0a020b8, xml=0xb90953f0 "<disk type='file' device='disk'>\n <source file='/var/lib/jenkins/jobs/libvirt-tck-build/workspace/scratchdir/200-disk-hotplug/extra.img'/>\n <target dev='vdb' bus='virtio'/>\n</disk>\n") at libvirt.c:10912 #8 0xb7765ddb in remoteDispatchDomainAttachDevice (args=0xb9094ef0, rerr=0xb646e1f0, client=<optimized out>, server=<optimized out>, msg=<optimized out>) at remote_dispatch.h:2296 #9 remoteDispatchDomainAttachDeviceHelper (server=0xb8fba0e8, client=0xb0a00730, msg=0xb0a350b8, rerr=0xb646e1f0, args=0xb9094ef0, ret=0xb9094dc8) at remote_dispatch.h:2274 #10 0xb72b1013 in virNetServerProgramDispatchCall (msg=0xb0a350b8, client=0xb0a00730, server=0xb8fba0e8, prog=0xb8fc21c8) at rpc/virnetserverprogram.c:435 #11 virNetServerProgramDispatch (prog=0xb8fc21c8, server=server@entry=0xb8fba0e8, client=0xb0a00730, msg=0xb0a350b8) at rpc/virnetserverprogram.c:305 #12 0xb72aa167 in virNetServerProcessMsg (msg=<optimized out>, prog=<optimized out>, client=<optimized out>, srv=0xb8fba0e8) at rpc/virnetserver.c:165 #13 virNetServerHandleJob (jobOpaque=0xb0a0a850, opaque=0xb8fba0e8) at rpc/virnetserver.c:186 #14 0xb7189108 in virThreadPoolWorker (opaque=opaque@entry=0xb8fa3250) at util/virthreadpool.c:144 #15 0xb71885e5 in virThreadHelper (data=0xb8fa32a8) at util/virthreadpthread.c:161 #16 0xb70d6954 in start_thread (arg=0xb646eb70) at pthread_create.c:304 #17 0xb704e95e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 This was found by libvirtt-tck: http://honk.sigxcpu.org:8001/job/libvirt-tck-debian-wheezy-qemu-session/1... --- The problem was introduced somewhere around 4bc331c8945152d8942a23383c3eb92da1bc4194 but I didn't get around to track this earlier. Cheers, -- Guido --- src/qemu/qemu_hotplug.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) diff --git a/src/qemu/qemu_hotplug.c b/src/qemu/qemu_hotplug.c index c9748d9..85d2ca9 100644 --- a/src/qemu/qemu_hotplug.c +++ b/src/qemu/qemu_hotplug.c @@ -275,7 +275,7 @@ int qemuDomainAttachVirtioDiskDevice(virConnectPtr conn, if (!(drivestr = qemuBuildDriveStr(conn, disk, false, priv->qemuCaps))) goto error; - if (!(devstr = qemuBuildDriveDevStr(NULL, disk, 0, priv->qemuCaps))) + if (!(devstr = qemuBuildDriveDevStr(vm->def, disk, 0, priv->qemuCaps))) goto error; } @@ -616,7 +616,7 @@ int qemuDomainAttachUsbMassstorageDevice(virConnectPtr conn, goto error; if (!(drivestr = qemuBuildDriveStr(conn, disk, false, priv->qemuCaps))) goto error; - if (!(devstr = qemuBuildDriveDevStr(NULL, disk, 0, priv->qemuCaps))) + if (!(devstr = qemuBuildDriveDevStr(vm->def, disk, 0, priv->qemuCaps))) goto error; } -- 1.8.4.rc1