calcru: time went backwards

[Jeremy Chadwick]

On Tue, Apr 15, 2008 at 10:11:38AM -0400, Scott Robbins wrote:
> On Tue, Apr 15, 2008 at 07:59:40AM -0500, Larry Rosenman wrote:
> > I thought this was gone, but on a kernel from Saturday I'm seeing a bunch of
> > these:
> 
> This one is covered in the FAQ in the troubleshooting section, 5.19.  

And what the FAQ doesn't cover is here:

http://wiki.freebsd.org/JeremyChadwick/Commonly_reported_issues

* EIST (Intel SpeedStep) incompatibilities with Supermicro PDSMI+ motherboards (and possibly others)
    * Symptom: kernel outputs messages like kernel: calcru: negative runtime of -XXXXX usec for pid XX
    * Workaround: Disable the EIST feature in the BIOS. You can still achieve ACPI-based processor
      frequency throttling by using powerd(8).
    * Reference: http://lists.freebsd.org/pipermail/freebsd-questions/2006-October/133253.html

-- 
| Jeremy Chadwick                                    jdc at parodius.com |
| Parodius Networking                           http://www.parodius.com/ |
| UNIX Systems Administrator                      Mountain View, CA, USA |
| Making life hard for others since 1977.                  PGP: 4BD6C0CB |