Re: backup-begin

Den 2023-04-05 kl. 09:47, skrev Peter Krempa: > The backup operation is quite complex so it is possible. > Please have a look into /var/log/libvirt/qemu/$VMNAME.log to see whether > qemu logged something like an assertion failure before crashing. > > Additionally you can have a look into 'coredumpctl' whether there are > any recorded crashes of 'qemu-system-x86_64' and also possibly collect > the backtrace. > > Also make sure to try updating the qemu package and see whether the bug > reproduces. > > If yes, please collect the stack/back-trace, versions of qemu and > libvirt, the contents of the VM log file and also ideally configure > libvirt for debug logging and collect the debug log as well: > > https://www.libvirt.org/kbase/debuglogs.html In the $VMNAME.log: qemu-system-x86_64: ../../block/qcow2.c:5175: qcow2_get_specific_info: Assertion `false' failed. I'm running libvirt 8.0.0, which is the latest version for my dist (ubuntu 22.04). If required how would I properly upgrade? Looking at https://github.com/qemu/qemu/blob/0c8022876f2183f93e23a7314862140c94ee62e... which would be the version of qcow2.c for 8.0.0 there seem to be some issue with qcow2 compat.