Linux 2.4 on 2001 G4

Benjamin Herrenschmidt benh at
Tue Apr 10 18:54:07 EST 2001

>It seems to hang in smp_core99_kick_cpu(), probably when the CPU takes
>the exception.  I inserted some debug messages around the call to
>mdelay() like so:
> if (ppc_md.progress) ppc_md.progress("!", 0);
> mdelay(1);
> if (ppc_md.progress) ppc_md.progress("smp_core99_kick_cpu: after
mdelay", 0);
>When booting, "!" is printed, but the other message is not.
>Is there anything else I can do to diagnose the problem?

I beleive it hangs in the second CPU entry point in head.S. My new CPU
identification & setup mecanism was not tested on SMP yet, so I beleive
it still has bugs. I'll look into this today or later this week.


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