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SubjectRe: RCU idle CPU detection is broken in linux-next
On 09/23/2012 02:21 AM, Paul E. McKenney wrote:
> On Sat, Sep 22, 2012 at 02:27:35PM -0700, Paul E. McKenney wrote:
>> On Sat, Sep 22, 2012 at 07:50:29PM +0200, Sasha Levin wrote:
>>> On 09/22/2012 05:56 PM, Paul E. McKenney wrote:
>>>> And now the prime suspect is the new CONFIG_RCU_USER_QS=y. Do these
>>>> warnings ever show up with CONFIG_RCU_USER_QS=n?
>>> It seems that disabling that does make the warnings go away.
>>> I'll keep the tests running in case it just reduces the chances or something
>>> like that.
>> Thank you for testing this!
>> And of course the reason that I didn't see these problems is that I
>> failed to update my tests to enable CONFIG_RCU_USER_QS. :-/
> Also the fact that I run 32-bit guests on x86. Sigh!
> I take it that you are running 64-bit guests?

Yes, that's correct.


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