Motorola MPC8260-ADS Boot hassel
Dan Malek
dan at netx4.com
Fri Jun 2 10:49:57 EST 2000
Steve Tarr wrote:
>
> Sorry for the confusion. I am not familiar with the
> Linux PANIC messages.
You will be soon :-).
> 1. NIP 0xC0010D90 is in wake_up_process()
> 3. Disasembling sched.o gave me a file offset of 0x1dc0 for
> wake_up_process(). The failing
Thanks, this was good and it all makes sense now......
> 1dd4: 7c 7e 1b 78 mr r30,r3
> >> 1e00: 81 3e 00 3c lwz r9,60(r30)
> Note: r30 is loaded from the paramenter passed in, r3.
Yep.
> 4. I made a seemingly foolish assumption that the TRAP: 0300
> was the exception vector. Hence that it was a DSI exception.
Not foolish, that's correct.
> Looking at the register dump shows r30 = 0xc0100000. Hence
> my question.
Mistake. R30 is zero. Null pointer. Decimal 60 is the offset 0x3c.
The wake_up_process() was passed a NULL task pointer. Track it down
through the stack backtrace.
> 5. The SUNI-lite is an SDH/ATM framer for the Fiber that uses FCC2.
Cool. That shouldn't be causing any trouble at this point.
-- Dan
** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
More information about the Linuxppc-embedded
mailing list