Re: mmotm 2020-05-11-15-43 uploaded (mm/memcontrol.c, huge pages)

From: Geert Uytterhoeven
Date: Tue May 12 2020 - 11:12:07 EST

On Tue, May 12, 2020 at 6:44 AM Randy Dunlap <rdunlap@xxxxxxxxxxxxx> wrote:
> On 5/11/20 3:44 PM, Andrew Morton wrote:
> > The mm-of-the-moment snapshot 2020-05-11-15-43 has been uploaded to
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > mmotm-readme.txt says
> >
> > README for mm-of-the-moment:
> >
> > http://www.ozlabs.org/~akpm/mmotm/
> >
> > This is a snapshot of my -mm patch queue. Uploaded at random hopefully
> > more than once a week.
> >
> > You will need quilt to apply these patches to the latest Linus release (5.x
> > or 5.x-rcY). The series file is in broken-out.tar.gz and is duplicated in
> > http://ozlabs.org/~akpm/mmotm/series
> >
> > The file broken-out.tar.gz contains two datestamp files: .DATE and
> > .DATE-yyyy-mm-dd-hh-mm-ss. Both contain the string yyyy-mm-dd-hh-mm-ss,
> > followed by the base kernel version against which this patch series is to
> > be applied.
> >
> > This tree is partially included in linux-next. To see which patches are
> > included in linux-next, consult the `series' file. Only the patches
> > within the #NEXT_PATCHES_START/#NEXT_PATCHES_END markers are included in
> > linux-next.
> >
> >
> > A full copy of the full kernel tree with the linux-next and mmotm patches
> > already applied is available through git within an hour of the mmotm
> > release. Individual mmotm releases are tagged. The master branch always
> > points to the latest release, so it's constantly rebasing.
> >
> > https://github.com/hnaz/linux-mm
> >
> > The directory http://www.ozlabs.org/~akpm/mmots/ (mm-of-the-second)
> > contains daily snapshots of the -mm tree. It is updated more frequently
> > than mmotm, and is untested.
> >
> > A git copy of this tree is also available at
> >
> > https://github.com/hnaz/linux-mm
>
> on x86_64:
>
> In file included from ../arch/x86/include/asm/atomic.h:5:0,
> from ../include/linux/atomic.h:7,
> from ../include/linux/page_counter.h:5,
> from ../mm/memcontrol.c:25:
> ../mm/memcontrol.c: In function âmemcg_stat_showâ:
> ../include/linux/compiler.h:394:38: error: call to â__compiletime_assert_383â declared with attribute error: BUILD_BUG failed
> _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> ^
> ../include/linux/compiler.h:375:4: note: in definition of macro â__compiletime_assertâ
> prefix ## suffix(); \
> ^~~~~~
> ../include/linux/compiler.h:394:2: note: in expansion of macro â_compiletime_assertâ
> _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> ^~~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:39:37: note: in expansion of macro âcompiletime_assertâ
> #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> ^~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:59:21: note: in expansion of macro âBUILD_BUG_ON_MSGâ
> #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
> ^~~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:319:28: note: in expansion of macro âBUILD_BUGâ
> #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
> ^~~~~~~~~
> ../include/linux/huge_mm.h:115:26: note: in expansion of macro âHPAGE_PMD_SHIFTâ
> #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
> ^~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:116:26: note: in expansion of macro âHPAGE_PMD_ORDERâ
> #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
> ^~~~~~~~~~~~~~~
> ../mm/memcontrol.c:3746:10: note: in expansion of macro âHPAGE_PMD_NRâ
> nr *= HPAGE_PMD_NR;
> ^~~~~~~~~~~~
> CC arch/x86/kernel/jump_label.o
> ../mm/memcontrol.c: In function âmemory_stat_formatâ:
> ../include/linux/compiler.h:394:38: error: call to â__compiletime_assert_356â declared with attribute error: BUILD_BUG failed
> _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> ^
> ../include/linux/compiler.h:375:4: note: in definition of macro â__compiletime_assertâ
> prefix ## suffix(); \
> ^~~~~~
> ../include/linux/compiler.h:394:2: note: in expansion of macro â_compiletime_assertâ
> _compiletime_assert(condition, msg, __compiletime_assert_, __COUNTER__)
> ^~~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:39:37: note: in expansion of macro âcompiletime_assertâ
> #define BUILD_BUG_ON_MSG(cond, msg) compiletime_assert(!(cond), msg)
> ^~~~~~~~~~~~~~~~~~
> ../include/linux/build_bug.h:59:21: note: in expansion of macro âBUILD_BUG_ON_MSGâ
> #define BUILD_BUG() BUILD_BUG_ON_MSG(1, "BUILD_BUG failed")
> ^~~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:319:28: note: in expansion of macro âBUILD_BUGâ
> #define HPAGE_PMD_SHIFT ({ BUILD_BUG(); 0; })
> ^~~~~~~~~
> ../include/linux/huge_mm.h:115:26: note: in expansion of macro âHPAGE_PMD_SHIFTâ
> #define HPAGE_PMD_ORDER (HPAGE_PMD_SHIFT-PAGE_SHIFT)
> ^~~~~~~~~~~~~~~
> ../include/linux/huge_mm.h:116:26: note: in expansion of macro âHPAGE_PMD_ORDERâ
> #define HPAGE_PMD_NR (1<<HPAGE_PMD_ORDER)
> ^~~~~~~~~~~~~~~
> ../mm/memcontrol.c:1405:10: note: in expansion of macro âHPAGE_PMD_NRâ
> HPAGE_PMD_NR * PAGE_SIZE);
> ^~~~~~~~~~~~
>
>
>
> Full randconfig file is attached.
>
> This might be relevant to mm-memcontrol-switch-to-native-nr_anon_thps-counter.patch

noreply@xxxxxxxxxxxxxx pointed me to a similar failure for m68k/allmodconfig:
http://kisskb.ellerman.id.au/kisskb/buildresult/14236262/

I've bisected it to 157f1f1385447604 ("mm: memcontrol: switch to native
NR_ANON_THPS counter").

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds