* Bob Picco <[EMAIL PROTECTED]> wrote: > I had hoped to collect more data with CFS V2. It crashes in > scale_nice_down for s2ram when attempting to disable_nonboot_cpus. So > part of traceback looks like (typed by hand with obvious omissions): > > scale_nice_down > update_stats_wait_end - not shown in traceback because inlined > pick_next_task_fair > migration_call > task_rq_lock > notifier_call_chain > _cpu_down > disable_nonboot_cpus
ok, this looks similar to the jpeg Christian did. Does the patch below fix the crash for you? Ingo --- kernel/sched.c | 2 ++ 1 file changed, 2 insertions(+) Index: linux/kernel/sched.c =================================================================== --- linux.orig/kernel/sched.c +++ linux/kernel/sched.c @@ -4425,6 +4425,8 @@ static void migrate_dead_tasks(unsigned struct task_struct *next; for (;;) { + if (!rq->nr_running) + break; next = pick_next_task(rq, rq->curr); if (!next) break; - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/