Skip site navigation (1)Skip section navigation (2)
Date:      Thu, 17 Nov 2005 04:42:37 -0800
From:      "Ed" <ed@edslocomb.com>
To:        <stable@freebsd.org>
Subject:   Re: Kernel clock for 6-STABLE runs at 1/2 speed in VMware 5.0 - WORKAROUND FOUND
Message-ID:  <007a01c5eb76$7528bec0$1132e7d8@robotslave>
References:  <007201c5eaf4$8be7ef00$1132e7d8@robotslave>

next in thread | previous in thread | raw e-mail | index | archive | help
After noticing the problem went away in Safe Mode, and then figuring out 
what Safe Mode actually does*, I've worked around the problem by disabling 
the APIC device, which, I gather, forces FreeBSD to use the old-fashioned 
IRQ timers.  This fix will not work if you want to run an SMP kernel in 
VMWare, I suppose, but I imagine there aren't too many people doing such a 
thing.  Anyhoo:

In /boot/loader.conf , add:

hint.apic.0.disabled=1


* All currently available documentation for FreeBSD Safe Mode, for those who 
are interested, is apparently located here:
       grep -A11 'bootsafekey @' /boot/beastie.4th 




Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?007a01c5eb76$7528bec0$1132e7d8>