linux-kernel - Re: [ANNOUNCE] 3.0.1-rt8

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Date:	Thu, 11 Aug 2011 14:52:28 +0200
From:	"Tim Sander" <tim.sander@....com>
To:	"Peter Zijlstra" <peterz@...radead.org>
Cc:	"linux-kernel" <linux-kernel@...r.kernel.org>,
	"Thomas Gleixner" <tglx@...utronix.de>,
	"Paul E. McKenney" <paulmck@...ibm.com>,
	"linux-rt-users" <linux-rt-users@...r.kernel.org>
Subject: Re: [ANNOUNCE] 3.0.1-rt8 - Regression to 3.0-rt7

Hi Peter

Am Donnerstag, 11. August 2011, 14:02:22 schrieb Peter Zijlstra:
> On Thu, 2011-08-11 at 13:30 +0200, Tim Sander wrote:
> > The error does not occur  when configured with
> > CONFIG_PREEMPT_RT_FULL=y
> > but with
> > CONFIG_PREEMPT_RTB=y.
> > The same error also happens with
> > CONFIG_PREEMPT_LL=y. (A log is appended after the other log just
> > search for CONFIG_PREEMPT_LL
> > for starting point).
> 
> Does the below (on top of -rt8) cure things for you? Shouldn't make a
> difference for PREEMPT_LL though, so maybe there's something else busted
> as well. But from what I can tell PREEMPT_BASE should be fine with such
> things disabling preemption..
I havent tested but i tested appling rt8 to 3.0 and then git diffstat.
Kind of a manual bisecting. Since you still seem to be currently looking at 
this: 
The current remaining offenders on the list from 3.0-rt7 are:
 git diff --stat rt8-test
 kernel/ksysfs.c       |   12 ------
 kernel/lockdep.c      |    5 ++-
 kernel/sched_cpupri.c |   28 ++-------------
 localversion-rt       |    2 +-
 mm/memory.c           |    2 -
 mm/slab.c             |   92 +++++++++++-------------------------------------
 6 files changed, 29 insertions(+), 112 deletions(-)

Will test the patch later on.

Best regards
Tim

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