Messages in this thread | | | Date | Tue, 24 Apr 2007 09:26:28 -0300 | From | "Guilherme M. Schroeder" <> | Subject | Re: 2.6.21-rc7: HPET enabled freeze my machine at boot |
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John,
Removing the three lines doesn't help too. It just boot ok with clocksource=acpi_pm.
Guilherme M. Schroeder Network Administrator Central de Vendas Informatica LTDA Tel.: (11) 3665-2000 Ramal: 2008 http://www.centralinf.com.br
john stultz wrote: > On Mon, 2007-04-23 at 15:30 -0700, john stultz wrote: >> On Sat, 2007-04-21 at 20:07 -0300, Guilherme M. Schroeder wrote: >>> john stultz wrote: >>>> On 4/19/07, guilherme <guilherme@centralinf.com.br> wrote: >>>>> Hi, >>>>> >>>>> If i enable "High Resolution Timer Support", my machine stops here at >>>>> boot: >>>>> >>>>> Clocksource tsc unstable (delta = -297340790165 ns) >>>>> Time: hpet clocksource has been installed. >>>>> >>>>> If i disable HPET, it boots fine. >>>> Hmmm.. What happens if you boot w/ clocksource=acpi_pm ? >>>> >>>> >>> Boot ok with clocksource=acpi_pm and HPET enabled. >>> Any clue? >> >> I'm suspecting that your HPET counter is being stopped for some reason, >> although why I have no idea. >> >> Just to get a clear picture, does this happen w/ "Tickless System >> (Dynamic ticks)" disabled in the menuconfig? >> >> Thomas, might we be actually stopping the HPET counter instead of >> disabling the HPET interrupt w/ dynticks? > > > Just a shot in the dark, but does this patch affect the behavior? > > thanks > -john > > diff --git a/arch/i386/kernel/hpet.c b/arch/i386/kernel/hpet.c > index 17d7345..14e76a5 100644 > --- a/arch/i386/kernel/hpet.c > +++ b/arch/i386/kernel/hpet.c > @@ -183,9 +183,6 @@ static void hpet_set_mode(enum clock_event_mode mode, > > case CLOCK_EVT_MODE_UNUSED: > case CLOCK_EVT_MODE_SHUTDOWN: > - cfg = hpet_readl(HPET_T0_CFG); > - cfg &= ~HPET_TN_ENABLE; > - hpet_writel(cfg, HPET_T0_CFG); > break; > } > } > > > > - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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