Re: [GIT PULL rcu/next] rcu commits for 2.6.40

[Yinghai Lu]

On 05/12/2011 12:27 AM, Yinghai Lu wrote:
> On 05/11/2011 11:03 PM, Ingo Molnar wrote:
>>
>> * Yinghai Lu <yinghai@xxxxxxxxxx> wrote:
>>
>>> e59fb3120becfb36b22ddb8bd27d065d3cdca499 is the first bad commit
>>> commit e59fb3120becfb36b22ddb8bd27d065d3cdca499
>>> Author: Paul E. McKenney <paulmck@xxxxxxxxxxxxxxxxxx>
>>> Date:   Tue Sep 7 10:38:22 2010 -0700
>>>
>>>     rcu: Decrease memory-barrier usage based on semi-formal proof
>>
>> Find below an (untested!) attempt at reverting it for debugging purposes: could 
>> you please try it, does your system now boot up fine?
>>
>> Thanks,
>>
>> 	Ingo
>>
> 
> yes, reverted manually that commit fix the problem.

on system with 8 sockets westmere-ex

it seems other commits after that commit contribute some delay too.

[   32.240739] cpu_dev_init done
[   73.587288] memory_dev_init done

Thanks

Yinghai
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