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

It looks like the BDI2000 debugger caused the problem. The kernel
boots fine after removing the debugger.

Thank you very much for all your replies!

Edward

On 6/6/05, Edward Hong [off-list ref] wrote:

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

quoted

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:

    printk("MSR =3D %x\n", mfmsr());

I got  MSR =3D 9032 just before cpu_idle which means EE (the most
significant bit) was enabled.
=20
Thank you!
=20
Edward