On Fri, Oct 11, 2013 at 6:39 PM, Matthew Garrett <mjg59 at srcf.ucam.org> wrote: > On Fri, Oct 11, 2013 at 06:33:23PM +0200, Richard Weinberger wrote: >> On Fri, Oct 11, 2013 at 5:48 PM, Matthew Garrett <mjg59 at srcf.ucam.org> wrote: >> > On Fri, Oct 11, 2013 at 11:44:50AM -0400, Vivek Goyal wrote: >> > >> >> Just Curious. How is it useful. IOW, what's your use case of booting a new >> >> kernel and then jumping back. >> > >> > I'm kexecing into a kernel with a modified /dev/mem, modifying the >> > original kernel and then jumping back into it. >> >> How do you update the original kernel? > > It's still in RAM, so the same way you'd modify any other arbitrary > physical address? So, you have a tool like ksplice which patches the kernel in RAM? -- Thanks, //richard
