On Mon, 2007-02-05 at 16:06 +0530, Sunil Naidu wrote:

On 2/5/07, Ingo Molnar [off-list ref] wrote:

quoted

i have released the v2.6.20-rt1 kernel, which can be downloaded from the
usual place:

Clean boot for me with 2.6.20 & 2.6.20-rt1. There isn't any error
(like in 2.6.20-rc7-rt3).

But here is an interesting dmesg:

rcu_boost_dat: idx=1 b=0 ul=0 ub=0 boost: a=0 b=0
rcu_boost_dat block:    0  0  0  0?
rcu_boost_dat boost:    0! 0  0  0?
rcu_boost_dat unlock:   0? 0  0  0?

I didn'tunderstand this with ? Am I missing anything here or please
give some inputs.

That is Paul McKenney's RCU priority boosting stuff.

Look here:
  http://lkml.org/lkml/2007/1/24/294