From: Ingo Molnar <mingo@elte.hu>
To: Esben Nielsen <simlo@phys.au.dk>
Cc: linux-kernel@vger.kernel.org, Thomas Gleixner <tglx@linutronix.de>
Subject: Re: 2.6.16-rc6-rt1
Date: Tue, 14 Mar 2006 23:11:11 +0100 [thread overview]
Message-ID: <20060314221111.GA7118@elte.hu> (raw)
In-Reply-To: <Pine.LNX.4.44L0.0603142256050.1291-100000@lifa01.phys.au.dk>
* Esben Nielsen <simlo@phys.au.dk> wrote:
> On Tue, 14 Mar 2006, Ingo Molnar wrote:
>
> >
> > * Esben Nielsen <simlo@phys.au.dk> wrote:
> >
> > [...]
> > no. We have to run deadlock detection to avoid things like circular lock
> > dependencies causing an infinite schedule+wakeup 'storm' during priority
> > boosting. (like possible with your wakeup based method i think)
> No, all tasks would just settle on the highest priority and then the
> wakeups would stop.
you are right, that shouldnt be possible. But how about other, SMP
artifacts? What if the woken up task runs on another CPU, and the whole
chain of boosting is thus delayed?
Ingo
next prev parent reply other threads:[~2006-03-14 22:13 UTC|newest]
Thread overview: 29+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-03-12 22:02 2.6.16-rc6-rt1 Ingo Molnar
2006-03-12 23:17 ` 2.6.16-rc6-rt1 Michal Piotrowski
2006-03-12 23:36 ` 2.6.16-rc6-rt1 Michal Piotrowski
2006-03-13 6:43 ` 2.6.16-rc6-rt1 Thomas Gleixner
2006-03-13 9:25 ` 2.6.16-rc6-rt1 Ingo Molnar
2006-03-13 13:49 ` 2.6.16-rc6-rt1 Michal Piotrowski
2006-03-13 6:56 ` [PATCH] 2.6.16-rc6-rt1: Fix redefinition and unknown symbol Jan Altenberg
2006-03-13 9:11 ` Ingo Molnar
2006-03-13 13:21 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-13 14:29 ` 2.6.16-rc6-rt1 Ingo Molnar
2006-03-13 16:06 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 0:22 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 8:12 ` 2.6.16-rc6-rt1 Ingo Molnar
2006-03-14 8:33 ` 2.6.16-rc6-rt1 Thomas Gleixner
2006-03-14 10:02 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 10:18 ` 2.6.16-rc6-rt1 Ingo Molnar
2006-03-14 22:02 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 22:11 ` Ingo Molnar [this message]
2006-03-14 22:22 ` 2.6.16-rc6-rt1 Thomas Gleixner
2006-03-15 11:21 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 22:28 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 10:58 ` 2.6.16-rc6-rt1 Thomas Gleixner
2006-03-14 20:40 ` 2.6.16-rc6-rt1 Esben Nielsen
2006-03-14 22:00 ` 2.6.16-rc6-rt1 Thomas Gleixner
2006-03-14 1:54 ` 2.6.16-rc6-rt1 Steven Rostedt
2006-03-14 7:51 ` 2.6.16-rc6-rt1 Ingo Molnar
2006-03-14 2:22 ` 2.6.16-rc6-rt1 Steven Rostedt
2006-03-14 8:00 ` 2.6.16-rc6-rt1 Ingo Molnar
2006-03-15 16:25 ` 2.6.16-rc6-rt1 John Richard Moser
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