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:

quoted

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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