misc/164419: 9.0-RELEASE clock stops in Xen 3.2.1
Bruce Cran
bruce at cran.org.uk
Mon Jan 23 20:40:15 UTC 2012
The following reply was made to PR misc/164419; it has been noted by GNATS.
From: Bruce Cran <bruce at cran.org.uk>
To: Robert Lampe <rlampe at tqhosting.com>
Cc: freebsd-gnats-submit at FreeBSD.org
Subject: Re: misc/164419: 9.0-RELEASE clock stops in Xen 3.2.1
Date: Mon, 23 Jan 2012 20:31:13 +0000
On 23/01/2012 20:14, Robert Lampe wrote:
> After following the freebsd-update instructions
> (http://www.freebsd.org/releases/9.0R/installation.html) to upgrade to
> 9.0-RELEASE, we have found that VMs running in HVM mode in Xen 3.2.1
> have an issue where the clock stops working after about 3 minutes: #
> date Mon Jan 23 20:06:21 UTC 2012 # date Mon Jan 23 20:09:48 UTC 2012
> Any other call of date after this outputs the same result. New
> processes cannot be started and the machine is essentially frozen.
The timecounter code was overhauled for 9.0, making progress towards a
'tickless' kernel. As a quick workaround you should be able to set
kern.eventtimer.periodic=1 to get ticks going again. You might want to
add it to /etc/sysctl.conf to make it permanent until a proper fix can
be made.
--
Bruce Cran
More information about the freebsd-bugs
mailing list