On Wed, May 5, 2010 at 3:27 AM, Dunda, Matthias <matthias.du...@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? > > Cheers > Matthias > > > > _______________________________________________ > Linuxppc-dev mailing list > Linuxppc-dev@lists.ozlabs.org > https://lists.ozlabs.org/listinfo/linuxppc-dev > 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 xianghua _______________________________________________ Linuxppc-dev mailing list Linuxppc-dev@lists.ozlabs.org https://lists.ozlabs.org/listinfo/linuxppc-dev