Re: kernel ported from ELDK 3.0 hangs (loops in idled()) on my custom MPC870 Board

On 6/6/05, Randy Vinson [off-list ref] wrote:

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Hi Edward,
  I've seen these symptoms before. The problem was traced to external
interrupts being disabled (MSR[EE] not set). Without external
interrupts, there is no decrementer interrupt (at least on 7xx
processors). Without the decrementer, there in no system clock tick and
without the clock tick, the scheduler won't run which means that the
init task won't start. To verify that this is the problem, use mfmsr()
to get the MSR and print it. I'd suggest that you add something like:
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    printk("MSR =3D %x\n", mfmsr());

I got  MSR =3D 9032 just before cpu_idle which means EE (the most
significant bit) was enabled.

Thank you!

Edward