Re: BUG: 2.6.11-rc2 and -rc1 hang during boot on PowerMacs

[Sylvain Munaut]

Benjamin Herrenschmidt wrote:

> On Sun, 2005-01-23 at 11:43 +1100, Benjamin Herrenschmidt wrote:
>
>  
>
> > I know about this problem, I'm working on a proper fix. Thanks for your
> > report.
> >    
>
> Can you send me the PVR value for both of these CPUs
> (cat /proc/cpuinfo) ? I can't find right now why they would lock up
> unless the default idle loop is _not_ run properly, that is for some
> reason, NAP or DOZE mode end up not beeing enabled. Can you send me
> your .config as well ?
>  
Note that when CONFIG_BDI_SWITCH is set, they both end up disabled
because nap & doze seems to perturb the BDI on some cores.

So there is a problem in that case ....

> Finally, try that patch and tell me if it makes a difference. 
Yup
- Without it hangs (not really, it's still half running but serial 
output is stuck
due to no interrupts)
- With it it works


   Sylvain

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