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*
To the beginning of pmu_suspend() should be added:
if (!pmu_fully_inited)
return;
This should prevent the pmu from being suspended while it hasn't been
initialized yet and so scrolling might be able to work again.
>
> 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.
That's very strange. Something wrong with our device tree?
I'll see if I can try testing with my 1400 soon.
>
> Cheers,
>
> Florian
>
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