On 2026-08-29 15:23:47, Arnaud wrote: > There's been a thread some months ago on misc@. > I solved it by using this config in ntpd.conf in the guest. > sensor vmmci0 refid LOCL stratum 8 trusted
Hi Arnaud, I thought your issue was resolved by: kern.timecounter.hardware=tsc in sysctl.conf https://marc.info/?l=openbsd-bugs&m=176771747910427&w=2 For ntpd.conf it appears pvclock0 is more efficient then vmmci0 according to the man pages (and some unofficial crude testing). pvclock wasn't available to guests until 7.8 (on my system anyways) whereas vmmci has always been there. I use sensor pvclock0 in VMs now. But NTP won't help if the kernel's ticker lost its' tocker. pvclock got some attention back in January, before 7.9's release. https://marc.info/?l=openbsd-tech&m=176925160105315&w=2 slowsers.net, Help the devs fix the underlining issue and post the output of "sysctl kern.timecounter" and your dmesg from host and broken VMs.
