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Date: Mon, 8 Oct 2007 15:08:23 +0200 From: Andi Kleen <ak@...e.de> To: Ingo Molnar <mingo@...e.hu> Cc: linux-kernel@...r.kernel.org Subject: Re: [PATCH] [5/6] scheduler: Protect important kernel threads against normalize_rt On Monday 08 October 2007 14:43:50 Ingo Molnar wrote: > > * Andi Kleen <ak@...e.de> wrote: > > > softlockup is the same. Just think about it. > > > > If you ever renormalize it and then run a fifo thread it will starve > > and then eventually kill the box. > > > > And starving CPU unplug is also equally bad. > > yeah, agreed. I ended up doing the change below. I considered doing it this way too. But it means that if keventd (or another workqueue thread) starts looping for some reason you cannot renormalize it. Might be not a good thing and impact debuggability. I think it's better to only protect special threads. -Andi - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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