On Wed, 2007-04-25 at 20:33 -0400, Len Brown wrote: > On Wednesday 25 April 2007 14:08, john stultz wrote: > > On Wed, 2007-04-25 at 04:06 -0700, Andrew Morton wrote: > > > On Mon, 23 Apr 2007 23:49:09 +0200 Adrian Bunk <[EMAIL PROTECTED]> wrote: > > > > Subject : acpi_pm clocksource loses time on x86-64 > > > > References : http://lkml.org/lkml/2007/4/17/143 > > > > Submitter : Mikael Pettersson <[EMAIL PROTECTED]> > > > > Handled-By : John Stultz <[EMAIL PROTECTED]> > > > > Status : problem is being debugged > > > > > > The ACPI PM one is *really* odd as its the same clocksource driver on > > both arches. I had Mikael cut out the clocksource frequency adjustments, > > and confirmed both i386 and x86_64 are using the same base freq > > (confirmed via printks). > > If this chipset's PM-timer loses "several minutes per hour" on x86_64, > I would expect it to do the same on i386. I can't imagine what the > difference could be. Any possibility it is the 24-bit version > and we do something funky on wraparound?
No, we assume the PM timer wraps at 24 bits and mask it as such on all systems. -john - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
