El 07.07.2009, a las 13:25, Florian Boelstler escribió:
> Florian Boelstler schrieb:
>> I'm not sure at the moment whether too many ppc_md.progress()-
>> messages
>> may keep the PowerBook from proceeding fast enough.
>
> Well it turned out, that depending on if btext debug output makes
> use of
> scrolling (see #undef NO_SCROLL in arch/ppc/syslib/btext.c) a function
> scrollscreen() calls pmu_suspend() / pmu_resume().
>
> Since the amount of debug output reaches the lower screen at around
> init_pmu() the screen is scrolled, which leads to a call of
> pmu_suspend(), which may interfere with the corresponding
> functionality
> in init_pmu(). At least is prevents further messages printed to the
> screen. *OUCH*
>
> An intermediate solution is to #define NO_SCROLL, which shows that the
> kernel proceeds beyond init_pmu().
> Later on it panics at pmac_m2_init() since find_devices("m2") fails --
> but this is something completely different.
>
Adding that condition to pmu_suspend() makes scrolling work again.
But nevertheless the PMU driver can't establish a connection to the PMU.
On my 1400 pmac_m2_init() completes successfully but shortly after that
the machine is shut down - well, without a working PMU driver it
can't do
anything else.
> Cheers,
>
> Florian
>
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