On Tue, Oct 20, 2015 at 04:00:31PM +0200, Peter Zijlstra wrote: > > Should we not take this opportunity to get rid of these open-coded wait > loops? > > > Does this work? No, on Book3S HV (POWER8) the VM hangs immediately after the kernel brings up all the secondary vCPUs, and is then unkillable. I'm not sure what's wrong, although I wonder why you have TASK_IDLE rather than TASK_INTERRUPTIBLE in the ___wait_event call. Paul. -- To unsubscribe from this list: send the line "unsubscribe linux-rt-users" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html