Re: randconfig chosing more than one slab allocator

[David Rientjes]

On Tue, 27 Mar 2012, Pekka Enberg wrote:

> > > make randconfig seems to allow chosing more than one slab allocator 
> > > although they are all part of a choice,endchoice block (and none are 
> > > tristate).  The following quickly finds both CONFIG_SLUB and CONFIG_SLOB 
> > > enabled:
> > > 
> > > $ while [ 1 ]; do make randconfig &> /dev/null; if [ $(grep "CONFIG_SL[OU]B=y" .config | wc -l) == 2 ]; then break; fi; done
> > > $ grep CONFIG_SL[OU]B=y .config
> > > CONFIG_SLUB=y
> > > CONFIG_SLOB=y
> > 
> > Ping on this?
> 
> I'm fairly sure this is a kbuild issue and that init/Kconfig is correct.
> 

Right, but it happens because SLOB is only available for CONFIG_EXPERT 
(the CONFIG_EMBEDDED restriction dates back to 81819f0fc828 in May 2007) 
so I was wondering if the kconfig folks would know what's going on without 
having to investigate it myself.
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