On Wed, Dec 14, 2011 at 03:02:10PM +1100, Peter Chubb wrote: > > When kexec() runs, it eventually sets up a 1-to-1 memory map, then > invokes cpu_reset(). When it invokes cpu_reset (which turns > off the MMU), it does so at its virtual address. Across the code that > disables the MMU, virtual and physical addresses have to be the same, > otherwise after disabling the MMU, the PC is invalid. > > The simplest fix is to invoke cpu_reset() at its one-to-one mapped > address. > > I've tested on KZM (arm v6) and Beagleboard (omap) NAK. Three reasons: 1. You've not signed-off the patch (please read Documentation/SubmittingPatches) 2. pre-ARMv6 do not expect this, and it will break where PHYS_OFFSET >= PAGE_OFFSET 3. Have you seen what's already queued for the next merge window?
