From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754144Ab0LIQZI (ORCPT ); Thu, 9 Dec 2010 11:25:08 -0500 Received: from freeflow.nu ([178.79.134.28]:41063 "EHLO freeflow.nu" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751631Ab0LIQZH (ORCPT ); Thu, 9 Dec 2010 11:25:07 -0500 Subject: Re: linux-next: build failure after merge of the slab tree From: Pekka Enberg To: Stephen Rothwell Cc: Christoph Lameter , linux-next@vger.kernel.org, linux-kernel@vger.kernel.org, Steven Rostedt , Richard Kennedy In-Reply-To: <20101209140325.bec98c5c.sfr@canb.auug.org.au> References: <20101209140325.bec98c5c.sfr@canb.auug.org.au> Content-Type: text/plain; charset="ISO-8859-1" Date: Thu, 09 Dec 2010 18:25:04 +0200 Message-ID: <1291911904.29040.4.camel@jaguar> Mime-Version: 1.0 X-Mailer: Evolution 2.28.3 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, 2010-12-09 at 14:03 +1100, Stephen Rothwell wrote: > Hi all, > > After merging the slab tree, today's linux-next build (powerpc > ppc64_defconfig) failed like this: > > lib/built-in.o: In function `.zlib_inflate_blob': > (.text+0x8640): undefined reference to `.kmem_cache_alloc_notrace' > > This build failure went away when I removed the lib directory from the > object tree and rebuilt. So I guess we have an unexpressed dependency. Did your config change from SLAB to SLUB or something? lib/zlib_inflate/infutil.c includes but if your config changes, I'm guessing it doesn't work all that well if you change the allocator because those tracing functions are in . Pekka