misc/164419: 9.0-RELEASE clock stops in Xen 3.2.1

[Robert Lampe]

>Number:         164419
>Category:       misc
>Synopsis:       9.0-RELEASE clock stops in Xen 3.2.1
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Mon Jan 23 20:20:07 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Robert Lampe
>Release:        9.0-RELEASE
>Organization:
RootBSD
>Environment:
# uname -a
9.0-RELEASE FreeBSD 9.0-RELEASE #0: Tue Jan  3 07:15:25 UTC 2012     root at obrian.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC  i386

>Description:
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.
>How-To-Repeat:
Create a Xen 3.2.1 HVM virtual machine running FreeBSD 9.0.
>Fix:


>Release-Note:
>Audit-Trail:
>Unformatted: