Hi, On Mon, 2016-06-27 at 17:29 +0100, James Morse wrote: > On 27/06/16 15:39, Catalin Marinas wrote: > > @@ -163,7 +148,7 @@ void machine_kexec(struct kimage *kimage) > > > > > > /* > > > > > > * New cpus may have become stuck_in_kernel after we loaded the image. > > > > > > */ > > -> > > > BUG_ON(cpus_are_stuck_in_kernel() && (num_online_cpus() > 1)); > > +> > > > BUG_ON(cpus_are_stuck_in_kernel() || (num_online_cpus() > 1)); > > > > > > > > reboot_code_buffer_phys = page_to_phys(kimage->control_code_page); > > > > > > reboot_code_buffer = phys_to_virt(reboot_code_buffer_phys); > > > > Yes, that's what I meant, thanks Catalin. > > The 'num_online_cpus() > 1' is still needed as disable_nonboot_cpus() called via > machine_shutdown() may have failed and this is where we check. (we can't return > an error from either path). > > Geoff, I assume you agree? Yes, we should do a final check, and abort the reboot if if we have more than a single cpu running. -Geoff
