On Mon, Jan 18, 2010 at 07:57:06AM -0800, Anoop P.A. wrote: > I am working on enabling Highmem support and 64 Bit support > > 1. 64 Bit support > > As Ralf suggested I have tried enabling 64 bit support. I have reached > up to a point where I can boot the kernel with 512MB memory (logs > attached). How ever if I increase mem above > 512 I am not even getting > single print from kernel. You told the kernel mem=1024M. That's memory at physical address zero so overlaps with I/O address ranges. Boom. The reason that you for further with highmem is the same except except that probably by pure luck the allocation order got things to fail a little later. To debug this sort of case I suggest you get early printk to work for your board or maybe you have a working EJTAG probe and debugger. Btw, what is the point of putting ASCII boot logs into word files inflating them 10x and getting half the mail filters of this world to throw the attachments or entire email away? Ralf
