Re: [Libguestfs] Libguestfs Hangs on CentOS 7.4

I found the serial port hang bug: https://bugzilla.redhat.com/show_bug.cgi?id=1435432 It was caused by a bad glib2 change. During RHEL 7 development we managed to introduce the same bug: https://bugzilla.redhat.com/show_bug.cgi?id=1473605 and I notice that we didn't fix it in glib2, but we worked around it in qemu-kvm, but CentOS probably doesn't have the 7.4-z fix with that workaround. I've no idea why NVMe would be a common factor here, or even if this is really the bug that you're seeing, but the easy fix would be to try using qemu-kvm-ev instead of qemu-kvm. Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-builder quickly builds VMs from scratch http://libguestfs.org/virt-builder.1.html