> It is what I use at kerneltests.org. > See https://github.com/groeck/linux-build-test/tree/master/rootfs/x86_64 > for configuration and script. > > > I can't reproduce it here with different qemu settings. > > > Interesting. What version of qemu are you using ?
I tested with your config: -no-kvm -cpu Broadwell-noTSX -M q35 and still don't see any boot warnings. This is QEMU emulator version 2.9.1(qemu-2.9.1-2.fc26) If you're on an older version it may be already fixed in qemu then. -Andi

