Date: Fri, 16 Dec 2011 10:04:27 -0600 From: Adam Vande More <amvandemore@gmail.com> To: Larry Rosenman <ler@lerctr.org> Cc: freebsd-emulation@freebsd.org, freebsd-ports@freebsd.org Subject: Re: Lousy timekeeping in VirtualBox 4.0.14 Message-ID: <CA%2BtpaK3jNqy-6YfD8fufnbGaNDV%2B1SG242u%2BNXsxpxfBPGJ1MQ@mail.gmail.com> In-Reply-To: <4EEA5461.4080107@lerctr.org> References: <4EE9014F.7010300@lerctr.org> <4EEA5461.4080107@lerctr.org>
next in thread | previous in thread | raw e-mail | index | archive | help
On Thu, Dec 15, 2011 at 2:11 PM, Larry Rosenman <ler@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. > > This is even with the VirtualBox-Additions in it. > > 1) is this expected/known? > 2) What can we do to fix it? > > What diagnostics do you need? > > I *CAN* provide ssh access to both the host and the guest. > 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. -- Adam Vande More
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?CA%2BtpaK3jNqy-6YfD8fufnbGaNDV%2B1SG242u%2BNXsxpxfBPGJ1MQ>