linux-kernel - Re: 2.6.24-rc8-rt1

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Message-ID: <Pine.LNX.4.58.0801171344290.28350@gandalf.stny.rr.com>
Date:	Thu, 17 Jan 2008 13:45:16 -0500 (EST)
From:	Steven Rostedt <rostedt@...dmis.org>
To:	Daniel Walker <dwalker@...sta.com>
cc:	Wolfgang Grandegger <wg@...ndegger.com>,
	LKML <linux-kernel@...r.kernel.org>,
	RT <linux-rt-users@...r.kernel.org>, Ingo Molnar <mingo@...e.hu>,
	Thomas Gleixner <tglx@...utronix.de>
Subject: Re: 2.6.24-rc8-rt1


On Thu, 17 Jan 2008, Daniel Walker wrote:

>
> On Thu, 2008-01-17 at 19:17 +0100, Wolfgang Grandegger wrote:
> > [    0.733248] TCP bind hash table entries: 2048 (order: 3, 57344
> > bytes)
> > [    0.741132] TCP: Hash tables configured (established 2048 bind
> > 2048)
> > [    0.747981] TCP reno registered
> > [    0.805896] krcupreemptd setsched 0
> > [    0.809657]   prio = 98
>
> That's interesting .. You chould try running cyclictest at priority 99
> to eliminate other threads that might get involved (using -p99 instead
> of -p80 , I think) ..
>

But, anotherthing to try is disabling CONFIG_PREEMPT_RCU_BOOST, and see if
that fixes anything.

-- Steve

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