Re: [libvirt-users] QemuDomainObjEndJob called when libvirtd is started and libvirt insists qemu is using the wrong disk source.

Bah. Your debug symbols aren't enough to give a full stack trace - what I was really looking for was those things marked as ??. However, your debug output shows several things leading up tothe qemuProcessStop that might have been the reason for it being called: 1) virStorageFileBackendFileReadHeader() complains that there is no medium in /dev/sr0 (i.e. no disk in the CD drive) (this was actually in your much more abbreviated log in an earlier message, but for some reason I skipped over it :-/) 2) libvirt sends the following command to qemu: {"execute":"block-commit","arguments":{"device":"bogus"},"id":"libvirt-4"} and gets back this error: {"id": "libvirt-4", "error": {"class": "DeviceNotFound", "desc": "Device 'bogus' not found"}} Since (1) actually generates a libvirt error log, that is what I would look into first.