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    SubjectRe: Long timeout when booting >= 2.6.38
    On 05/04/2011 03:00 AM, john stultz wrote:
    > On Tue, 2011-05-03 at 00:27 +0200, Christian Hoffmann wrote:
    >>>
    >>> Can you reproduce the hang booting with "clocksource=hpet" and
    >>> "clocksource=acpi_pm" ?
    >>
    >> Both hang also.
    >
    > Sorry, one more clarifying point here:
    >
    > When you used either clocksource=hpet/clocksource=acpi_pm did the
    > behavior of the system seem different after booting? In other words:
    > does running time waiting a few seconds and then running time again show
    > the expected passage of time? Were any following hangs seen, or was it
    > only the first one at boot?

    Hi,

    with hpet no problems seen. No further hangs either.

    In fact, switching to acpi_pm doesn't seem to work:

    $ dmesg | grep clock

    [ 0.000000] Command line: BOOT_IMAGE=/vmlinuz-2.6.39-rc5-ch-broken+
    root=/dev/mapper/vg-root ro quiet splash vt.handoff=7 clocksource=acpi_pm
    [ 0.000000] Kernel command line:
    BOOT_IMAGE=/vmlinuz-2.6.39-rc5-ch-broken+ root=/dev/mapper/vg-root ro
    quiet splash vt.handoff=7 clocksource=acpi_pm
    [ 0.000000] hpet clockevent registered
    [ 1.413835] Switching to clocksource hpet
    [ 1.420762] Override clocksource acpi_pm is not HRT compatible.
    Cannot switch while in HRT/NOHZ mode
    [ 147.940143] Refined TSC clocksource calibration: 2809.409 MHz.
    [ 147.940147] Switching to clocksource tsc


    Regards,
    Chris


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