On Fri, Dec 16, 2011 at 10:04 AM, Adam Vande More <amvandem...@gmail.com> wrote: > On Thu, Dec 15, 2011 at 2:11 PM, Larry Rosenman <l...@lerctr.org> wrote: >> I've set up VirtualBox 4.0.14 on my FreeBSD 10.0-CURRENT (r228498) >> box, and have a FreeBSD 10.0-CURRENT VM running underneath it. >> While the VM is running, it doesn't keep time worth a flip. > > There is a bunch of tuning you can do with Virtualbox to try and alleviate > such issues: > > http://www.virtualbox.org/manual/ch09.html#idp13756960 > > However no combination has worked for me. The only stable config I've been > able to find is to setup NTP on host and guest and keep vboxservice > running. Running vboxservice alone results in very erratic timekeeping and > the service core dumps every few days. Running NTP alone results in the > difference going too high and out of NTP's allowable range.
I don't remember where I saw it, but have you tried to set the kernel tunable kern.hz=50 in your guest FreeBSD? It made a huge difference to me. -- llwang _______________________________________________ freebsd-emulation@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-emulation To unsubscribe, send any mail to "freebsd-emulation-unsubscr...@freebsd.org"
