On Wed, Jan 11, 2012 at 5:03 AM, Will Deacon <will.deacon at arm.com> wrote: > On Wed, Jan 11, 2012 at 10:23:18AM +0000, Joonyoung Shim wrote: >> One more question, generally boot cpu is first cpu(cpu0). If current >> cpu is secondary cpu(cpu1), smp_send_stop of machine_shutdown will stop >> first cpu and next kernel will try to boot on secondary cpu. Is it >> possible? > > I added the cpu_logical_map stuff for this, so the kernel can handle it. > That said, your platform may have restrictions about the boot CPU so if it > doesn't work, you'll need to taskset the kexec command to CPU 0. Would this negatively effect kdump though where you might not be able to switch back to cpu0? I think It's best to be able to boot on any core. -M
