linux-kernel - Re: next Feb 10: mm/slqb build break

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Message-ID: <20090212014503.GD30043@wotan.suse.de>
Date:	Thu, 12 Feb 2009 02:45:03 +0100
From:	Nick Piggin <npiggin@...e.de>
To:	Pekka Enberg <penberg@...helsinki.fi>
Cc:	"Sachin P. Sant" <sachinp@...ibm.com>,
	Stephen Rothwell <sfr@...b.auug.org.au>,
	linux-next@...r.kernel.org, LKML <linux-kernel@...r.kernel.org>,
	linuxppc-dev@...abs.org
Subject: Re: next Feb 10: mm/slqb build break

On Tue, Feb 10, 2009 at 01:53:51PM +0200, Pekka Enberg wrote:
> On Tue, Feb 10, 2009 at 11:54 AM, Sachin P. Sant <sachinp@...ibm.com> wrote:
> > Sachin P. Sant wrote:
> >>
> >> Hi Stephen,
> >>
> >> Todays next randconfig build on powerpc fails with
> >>
> >>  CC      mm/slqb.o
> >> mm/slqb.c: In function __slab_free:
> >> mm/slqb.c:1648: error: implicit declaration of function
> >> slab_free_to_remote
> >> mm/slqb.c: In function kmem_cache_open:
> >> mm/slqb.c:2174: error: implicit declaration of function
> >> kmem_cache_dyn_array_free
> >> mm/slqb.c:2175: warning: label error_cpu_array defined but not used
> >> mm/slqb.c: In function kmem_cache_destroy:
> >> mm/slqb.c:2294: error: implicit declaration of function
> >> claim_remote_free_list
> >> mm/slqb.c: In function kmem_cache_reap_percpu:
> >> mm/slqb.c:2547: error: implicit declaration of function
> >> flush_remote_free_cache
> >> mm/slqb.c: In function kmem_cache_init:
> >> mm/slqb.c:2783: error: per_cpu__kmem_cpu_nodes undeclared (first use in
> >> this function)
> >> mm/slqb.c:2783: error: (Each undeclared identifier is reported only once
> >> mm/slqb.c:2783: error: for each function it appears in.)
> >> mm/slqb.c:2784: error: kmem_cpu_cache undeclared (first use in this
> >> function)
> >> make[1]: *** [mm/slqb.o] Error 1
> >> make: *** [mm] Error 2
> >
> > CONFIG_SMP is not set hence the failure.
> 
> Actually, that's not the root cause here. You seem to have CONFIG_SMP
> disabled but CONFIG_NUMA enabled. That's not possible on x86 which
> makes me think it's a ppc kconfig bug. Hmm?

If it is really a valid config, then we should be able to make
slqb build with it...

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