On Thu, Jul 28, 2011 at 03:15:20PM +0200, Arno Steffen wrote: > Maybe you are so kind to give me a hint: > > Try to migrate from Kernel 33 to 37. Currently I don't see any message after > > Verifying Checksum ... OK > Loading Kernel Image ... OK > OK > > Starting kernel ... > > From what I understand kernel starts with start_kernel()). > What is best way to find out which part is failing? At which point I > do a printk to see what's going on, or at least set a GPIO Pin of the > processor? > How to debug without any external tools like JTAG.
try to enable CONFIG_DEBUG_LL and CONFIG_EARLY_PRINTK, then add "debug earlyprintk" to your command line. See if that helps showing more debug messages. -- balbi
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