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SubjectRe: [tip:core/rcu] Revert "rcu: Decrease memory-barrier usage based on semi-formal proof"
On 05/20/2011 04:49 PM, Paul E. McKenney wrote:
> On Fri, May 20, 2011 at 04:16:28PM -0700, Yinghai Lu wrote:
...
>>
>> the same one i sent out before, but let DEBUG_LOCKING_API_SELFTESTS disabled.
>
> OK, just to make sure I understand... You are compiling exactly the
> same kernel source tree with exactly the same .config, just with two
> different versions of gcc, correct?
yes.
>
> If so, it is quite possible that the slow one is the correct one. :-/
yeah, new version always have problem.

looks like opensuse11.3 has 4.5.0 and fedora14 has 4.5.1

Yinghai


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