Hi, Thanks for valuable inputs.. memset_io() issue got resolved after I invalidated the L1 data and Instruction cache before calling early_init(was mentioned in some mailing list ). The code execution resumed and somewhere during MMU_init it again got struck.This time its due to a DataTLBError. I am now trying to trace the function causing TLB miss using ICE Trace32. Any pointers for reason behind generation of DataTLBError during MMU_init
Thanks Deepak Gaur On Mon, 7 Apr 2008 13:50:04 -0600, David Baird wrote > On Mon, Apr 7, 2008 at 10:04 AM, Scott Wood <[EMAIL PROTECTED]> wrote: > > BTW, it's generally bad form to post the same question repeatedly. If you > > have new information regarding your problem, just post a followup in the > > same thread containing the new information. > > Agreed! I was about to respond to your new post, and then I > discovered this nearly identical slightly older post. > > On Mon, Apr 7, 2008 at 12:37 AM, Deepak Gaur <[EMAIL PROTECTED]> wrote: > > While booting MVL linux on MPC8560 based board the kernel goes into a > > infinite loop in setup.c > > Someone please correct me if I am wrong, but those symbols inside the > BSS should only be variables (not functions....) which are initialized > to zero. The whole reason for BSS is to initialize variables to a > 0/null value. > > Now, about the infinite loop. Can you check to see if perhaps you are > getting an exception? > > I have no experience with the MPC8560, but I've seen a couple problems > that occur involving memset_io. What happens is that a TLB miss > exception occurs when the CPU gets inside of memset_io. Do you have > the ability to check that with a debugger (by setting breakpoints at > exceptions, such as the data and instruction TLB miss exceptions) to > see if you are getting exceptions? > _______________________________________________ > Linuxppc-embedded mailing list > Linuxppc-embedded@ozlabs.org > https://ozlabs.org/mailman/listinfo/linuxppc-embedded Deepak Gaur _______________________________________________ Linuxppc-embedded mailing list Linuxppc-embedded@ozlabs.org https://ozlabs.org/mailman/listinfo/linuxppc-embedded
