On 03/22/2015 10:42 PM, Mike Galbraith wrote: >> Why can't we just Let swapper be the owner when in irq with no dummy? >> Thanks Mike for the suggestion. That may also work. Unfortunately somehow I'm still having a hung problem, which may be related to the priority of the interrupt handler task. >> I have "don't raise timer unconditionally" re-applied, the check for a >> running callback bits of my nohz_full fixlet, and the below on top of >> that, and all _seems_ well. > > But not so well on 64 core box. That has nothing to do with hacklet > though, re-applying timers-do-not-raise-softirq-unconditionally.patch > without thta hangs the 64 core box during boot with no help from me > other than to patchlet to let nohz work at all, seems there's another > issue lurking there. Hohum. Without 'don't raise..", big box is fine. > If you get your patch to work, I could try my test that was able to reproduce the problem consistently. Thanks, Mak. > -Mike > -- 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