Kernel errors at very early stage
xiaoxianghua at gmail.com
Thu May 6 04:36:38 EST 2010
On Wed, May 5, 2010 at 3:27 AM, Dunda, Matthias
<Matthias.Dunda at de.thalesgroup.com> wrote:
> Hi all-
> we've built a custom board with a FSL MPC8568EMDS CPU.
> U-Boot works so far - at least it is able to load a Linux kernel and a
> flattened device tree via network and launch the kernel.
> I get no output on the serial console from the kernel, so my only chance is
> to read out the __log_buf while in memory with my Abatron BDI 3000 debugger.
> The thing is, I cannot break into the code really, because it never stops
> reliable at my break points... :-(
> Can anyone of you see a usual suspect in the attached log?
> Is there something wrong with the timing, maybe? Maybe a hardware issue?
> How can I check this?
> Linuxppc-dev mailing list
> Linuxppc-dev at lists.ozlabs.org
from the log it seems your device tree has issue, also you may want to
turn on verbose debug, turn off preempt, turn off no_hz and see how
far it can go.
if only log_buf is available to get some output, you may want to
increase the buffer size to see more
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