Hello,
I used the HEAD secretlabs kernel and used ml403 defconfig. I still see
no serial output from the _kernel_ on the serial console. But I do see
output from the in kernel embedded boot loader "load_kernel". I typed in
stop in xmd and got an instruction pointer which points to:
c00045a0 <__delay>:
c00045a0: 2c 03 00 00 cmpwi r3,0
c00045a4: 7c 69 03 a6 mtctr r3
c00045a8: 4d 82 00 20 beqlr
c00045ac: 42 00 00 00 bdnz- c00045ac <__delay+0xc>
<<<<<<<<
c00045b0: 4e 80 00 20 blr
So I guess it is the calibrating delay loop and I am not sure. I can reproduce
this. It is always in this function. Now I wonder is my board missing
timer interrupts? What could be the reason for this. And of course one
much more important question:
- Is the serial console initialized before or after the
calibrating delay loop?
Is there a way to get a backtrace out of this? If that is the case what
do I have to do? Recompile the Kernel with frame pointers and attach
gdb?
Thomas
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