Re: libvirt segfaults with "internal,error: Missing monitor reply object", during block live-migration

On Thu, Jul 30, 2020 at 16:13:09 +0200, Alex Walender wrote: > Dear libvirt community, > > > Using recent Ubuntu Stein Cloud Packages, we are observing random > libvirtd live-migration crashes on the target host. > Libvirt is having a SEGFAULT with the qemu driver. Transferring block > devices usually works without issues. > However, the following memory transfer is causing the target libvirtd > randomly to close down its socket, resulting in a roll-backed migration > process.I can reproduce this with large VMs, which have a large memory pool. Could you please also attach the backtrace of the libvirtd process once it crashes? That would be helpful.