Date: Sat, 29 Nov 2003 11:35:54 -0500 From: Don Bowman <don@sandvine.com> To: 'Kris Kennaway' <kris@obsecurity.org>, Michael Nottebrock <michaelnottebrock@gmx.net> Cc: freebsd-stable@FreeBSD.org Subject: RE: Time jumping on both 4.x and 5.x ... Message-ID: <FE045D4D9F7AED4CBFF1B3B813C85337035E3F62@mail.sandvine.com>
next in thread | raw e-mail | index | archive | help
From: Kris Kennaway [mailto:kris@obsecurity.org] > > On Sat, Nov 29, 2003 at 11:32:28AM +0100, Michael Nottebrock wrote: > Content-Description: signed data > > On Saturday 29 November 2003 09:19, Kris Kennaway wrote: > > > > > > Are all affected machines multi-processor? > > > > None. Both are i386 UP (although the 4.9-RELEASE box is > running an SMP-enabled > > kernel). > > I didn't think 4.x SMP kernels could run on a UP machine. They can if the machine has an APIC. ie most P3 and newer boards will run a MP kernel even if only one processor is installed. For me, the bug reproduces on 4.7, and if I set kern.timecounter.method=1, the problem goes away. I've reproduced on both TSC and i8254. --don
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?FE045D4D9F7AED4CBFF1B3B813C85337035E3F62>