Re: RCU idle CPU detection is broken in linux-next

[Paul E. McKenney]

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?

							Thanx, Paul

--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html
Please read the FAQ at  http://www.tux.org/lkml/