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Re: [PATCH] [5/6] scheduler: Protect important kernel threads against normalize_rt

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From: Andi Kleen <ak@...>
To: Ingo Molnar <mingo@...>
Cc: <linux-kernel@...>
Subject: Re: [PATCH] [5/6] scheduler: Protect important kernel threads against normalize_rt
Date: Monday, October 8, 2007 - 8:33 am

On Monday 08 October 2007 13:51:42 Ingo Molnar 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.

-Andi
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Messages in current thread:
[PATCH] [0/6] Some scheduler changes for sched-devel, Andi Kleen, (Sun Oct 7, 4:59 pm)
[PATCH] [5/6] scheduler: Protect important kernel threads ag..., Andi Kleen, (Sun Oct 7, 4:59 pm)
Re: [PATCH] [5/6] scheduler: Protect important kernel thread..., Ingo Molnar, (Mon Oct 8, 7:51 am)
Re: [PATCH] [5/6] scheduler: Protect important kernel thread..., Andi Kleen, (Mon Oct 8, 8:33 am)
Re: [PATCH] [5/6] scheduler: Protect important kernel thread..., Ingo Molnar, (Mon Oct 8, 8:43 am)
Re: [PATCH] [5/6] scheduler: Protect important kernel thread..., Andi Kleen, (Mon Oct 8, 9:08 am)
[PATCH] [4/6] scheduler: Refactor normalize_rt_tasks, Andi Kleen, (Sun Oct 7, 4:59 pm)
Re: [PATCH] [4/6] scheduler: Refactor normalize_rt_tasks, Ingo Molnar, (Mon Oct 8, 7:44 am)
[PATCH] [6/6] scheduler: Remove bogus comment in sched_group..., Andi Kleen, (Sun Oct 7, 4:59 pm)
Re: [PATCH] [6/6] scheduler: Remove bogus comment in sched_g..., Ingo Molnar, (Mon Oct 8, 7:52 am)
[PATCH] [2/6] scheduler: Refactor common code of sleep_on / ..., Andi Kleen, (Sun Oct 7, 4:59 pm)
Re: [PATCH] [2/6] scheduler: Refactor common code of sleep_o..., Andi Kleen, (Sun Oct 7, 6:22 pm)
Re: [PATCH] [2/6] scheduler: Refactor common code of sleep_o..., Ingo Molnar, (Mon Oct 8, 7:39 am)
Re: [PATCH] [2/6] scheduler: Refactor common code of sleep_o..., Ingo Molnar, (Mon Oct 8, 8:03 am)
[PATCH] [3/6] scheduler: Do devirtualization for sched_fair, Andi Kleen, (Sun Oct 7, 4:59 pm)
Re: [PATCH] [3/6] scheduler: Do devirtualization for sched_f..., Ingo Molnar, (Mon Oct 8, 7:42 am)
Re: [PATCH] [3/6] scheduler: Do devirtualization for sched_f..., Andi Kleen, (Mon Oct 8, 8:32 am)
Re: [PATCH] [3/6] scheduler: Do devirtualization for sched_f..., Ingo Molnar, (Mon Oct 8, 8:39 am)
Re: [PATCH] [3/6] scheduler: Do devirtualization for sched_f..., Andi Kleen, (Mon Oct 8, 10:33 am)
[PATCH] [1/6] scheduler: Remove some unnecessary gotos in sc..., Andi Kleen, (Sun Oct 7, 4:59 pm)
Re: [PATCH] [1/6] scheduler: Remove some unnecessary gotos i..., Ingo Molnar, (Tue Oct 9, 3:17 pm)
Re: [PATCH] [1/6] scheduler: Remove some unnecessary gotos i..., Andi Kleen, (Tue Oct 9, 8:55 pm)
Re: [PATCH] [1/6] scheduler: Remove some unnecessary gotos i..., Ingo Molnar, (Wed Oct 10, 7:25 am)
Re: [PATCH] [1/6] scheduler: Remove some unnecessary gotos i..., Ingo Molnar, (Wed Oct 10, 7:26 am)
Re: [PATCH] [1/6] scheduler: Remove some unnecessary gotos i..., Ingo Molnar, (Mon Oct 8, 7:36 am)