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 <linux/slab.h> 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 <linux/sl{a,u}b_def.h>.
Pekka
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