Unfortunately, some of the CPU Hotplug code has been duplicated in all of the architectures. And in some cases, very poorly (some architectures left out some of the important bits), to add to the woes. Commit 5fbd036b552f633abb394a319f7c62a5c86a9cd7 (sched: Cleanup cpu_active madness) introduced some changes that made the scheduler rely on the CPU_STARTING notifier. And hence those architectures which forgot to send out the CPU_STARTING notification will almost surely get into trouble. (Xen is one example[1]). The proper fix would be to pull out these bits into generic CPU Hotplug code. But for now, fix this regression by adding the missing bits in the respective architectures. [1].https://lkml.org/lkml/2012/3/20/459 -- Srivatsa S. Bhat (2): parisc/CPU hotplug: Add missing call to notify_cpu_starting() mn10300/CPU hotplug: Add missing call to notify_cpu_starting() arch/mn10300/kernel/smp.c | 9 ++++++--- arch/parisc/kernel/smp.c | 8 +++++++- 2 files changed, 13 insertions(+), 4 deletions(-) Thanks, Srivatsa S. Bhat IBM Linux Technology Center -- To unsubscribe from this list: send the line "unsubscribe linux-parisc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
