CPU flag detection failed, will try again after delay

[migueipod]

Hi, I'm starting in this world of proxmox and I have a fresh install of Proxmox 8.0.3 on a HP Proliant Microserver G8 with Intel Xeon E3-1260L. I have enabled IOMMU and installed an Ubuntu Server 22.04 VM to test it, but in the journalctl I have this messages every 2 minutes:

Jul 22 17:18:47 g8 kernel: kvm[4008]: segfault at 1 ip 00007f3f0bace790 sp 00007ffe040f9298 error 6 in librbd.so.1.17.0[7f3f0b688000+667000] likely on CPU 7 (core 3, socket 0)
Jul 22 17:18:47 g8 kernel: Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Jul 22 17:18:47 g8 kernel: kvm[4010]: segfault at 1 ip 00007f3f0bace790 sp 00007ffe040f92c8 error 6 in librbd.so.1.17.0[7f3f0b688000+667000] likely on CPU 2 (core 2, socket 0)
Jul 22 17:18:47 g8 kernel: Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Jul 22 17:18:47 g8 kernel: kvm[4006]: segfault at 1 ip 00007f3f0bace790 sp 00007ffe040f9298 error 6 in librbd.so.1.17.0[7f3f0b688000+667000] likely on CPU 0 (core 0, socket 0)
Jul 22 17:18:47 g8 kernel: Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Jul 22 17:18:47 g8 pvestatd[1138]: warning: failed querying supported tcg flags: QEMU flag querying VM exited with code -1 at /usr/share/perl5/PVE/QemuServer.pm line 3477.
Jul 22 17:18:47 g8 kernel: kvm[4014]: segfault at 1 ip 00007f8c312ce790 sp 00007ffce3fb0ea8 error 6 in librbd.so.1.17.0[7f8c30e88000+667000] likely on CPU 1 (core 1, socket 0)
Jul 22 17:18:47 g8 kernel: Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Jul 22 17:18:47 g8 kernel: kvm[4016]: segfault at 1 ip 00007f8c312ce790 sp 00007ffce3fb0ed8 error 6 in librbd.so.1.17.0[7f8c30e88000+667000] likely on CPU 2 (core 2, socket 0)
Jul 22 17:18:47 g8 kernel: Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Jul 22 17:18:47 g8 kernel: kvm[4012]: segfault at 1 ip 00007f8c312ce790 sp 00007ffce3fb0ea8 error 6 in librbd.so.1.17.0[7f8c30e88000+667000] likely on CPU 7 (core 3, socket 0)
Jul 22 17:18:47 g8 kernel: Code: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 <00> 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
Jul 22 17:18:47 g8 pvestatd[1138]: warning: failed querying supported kvm flags: QEMU flag querying VM exited with code -1 at /usr/share/perl5/PVE/QemuServer.pm line 3477.
Jul 22 17:18:47 g8 pvestatd[1138]: CPU flag detection failed, will try again after delay

Also, during booting Ubuntu VM the task viewer shows an error "command '/usr/bin/kvm --version' failed: got signal 11 TASK ERROR: start failed: QEMU exited with code -1" (it finally boot but the error is sawn)