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 <bunk@xxxxxxxxx> wrote: > > > > > This email lists some known regressions in Linus' tree compared to 2.6.20. > > > > > > If you find your name in the Cc header, you are either submitter of one > > > of the bugs, maintainer of an affectected subsystem or driver, a patch > > > of you caused a breakage or I'm considering you in any other way > > > possibly involved with one or more of these issues. > > > > > > Due to the huge amount of recipients, please trim the Cc when answering. > > > > > > > > > Subject : HPET enabled freeze my machine at boot > > > workaround: clocksource=acpi_pm > > > References : http://lkml.org/lkml/2007/4/19/370 > > > Submitter : Guilherme Schroeder <guilherme@xxxxxxxxxxxxxxxxx> > > > Caused-By : Thomas Gleixner <tglx@xxxxxxxxxxxxx> > > > commit 5d8b34fdcb384161552d01ee8f34af5ff11f9684 > > > Handled-By : John Stultz <johnstul@xxxxxxxxxx> > > > Status : problem is being debugged > > > > > > > > > Subject : acpi_pm clocksource loses time on x86-64 > > > References : http://lkml.org/lkml/2007/4/17/143 > > > Submitter : Mikael Pettersson <mikpe@xxxxxxxx> > > > Handled-By : John Stultz <johnstul@xxxxxxxxxx> > > > Status : problem is being debugged > > > > > > > > > Subject : suspend to disk hangs (CONFIG_NO_HZ) > > > References : http://lkml.org/lkml/2007/3/25/217 > > > Submitter : Jeff Chua <jeff.chua.linux@xxxxxxxxx> > > > Status : unknown > > > > That's still rather a lot of bustage from the timekeeping changes. Is > > anything really happening here or have we all given up? > > > 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? -Len > It almost seems like when booting x86_64 the ACPI PM counter is running > slowly! > > Len: Have you ever heard of such a thing? It seems quite unlikely... > > > WRT the HPET freeze issue, I'm still digging there. In that case it > appears the HPET isn't counting, so timekeeping just stops. I was > thinking it might be HRT messing w/ the wrong HPET registers, but so far > that hasn't shaken out. > > I'll spend some more time on these today and see if we get any further. > > thanks > -john > > > - > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ > _______________________________________________ linux-pm mailing list linux-pm@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linux-foundation.org/mailman/listinfo/linux-pm
