On Tue, Mar 02, 2010 at 09:36:32AM -0800, Jeremy Chadwick typed: > On Tue, Mar 02, 2010 at 06:12:27PM +0100, Ruben de Groot wrote: > > On Tue, Mar 02, 2010 at 12:09:21PM +0100, C. P. Ghost typed: > > > On Tue, Mar 2, 2010 at 9:43 AM, Ruben de Groot <mai...@bzerk.org> wrote: > > > > malenfant# sysctl kern.timecounter > > > > kern.timecounter.tick: 1 > > > > kern.timecounter.choice: TSC(-100) HPET(900) ACPI-safe(850) i8254(0) > > > > dummy(-1000000) > > > > kern.timecounter.hardware: HPET > > > > > > Just a wild guess... but is HPET really enabled in the BIOS? > > > > Well, there's no such option in the BIOS. Just checked. It's btw an AMI > > BIOS. > > I'm totally unfamiliar with timecounter hardware, but after resetting the > > BIOS to > > factory settings (which I think it allready was, since I only change > > anything > > there when there is a real reason) the problem persists. > > The BIOS option could be labelled something like "Multimedia Timer" or > "High Prevision Event Timer". Each mainboard or BIOS manufacturer seems > to have their own naming convention for it, though Wikipedia does shed > some light on the confusion.
I've looked through all options, without succes :( > > I'm going to get this kern.timecounter sysctl from the system booted with a > > 7.x livecd > > this evening. But really, I think this is a regression. Even if this system > > is the only > > one known to be affected (which I sincerely doubt). > > You can force a timecounter choice by setting it in /boot/loader.conf. > I would recommend choosing ACPI-safe on your system to see if that > improves things: > > kern.timecounter.hardware=ACPI-safe Thanks, that solved my issue. Allthough for correctness I must add that this line must be put in /etc/sysctl.conf; it does nothing in loader.conf. Also the sysctl can be run in multiuser and immediately fixed the problem. One question remains: why did this suddenly become a problem in FreeBSD 8 and not in FreeBSD 7. cheers, Ruben _______________________________________________ freebsd-stable@freebsd.org mailing list http://lists.freebsd.org/mailman/listinfo/freebsd-stable To unsubscribe, send any mail to "freebsd-stable-unsubscr...@freebsd.org"
