* [akpm-mm:mm-new] BUILD REGRESSION 892f5b3b07e5b07f2f29c87750ff94fa58dcab73
@ 2026-09-17 10:00 kernel test robot
2026-09-17 16:22 ` Andrew Morton
0 siblings, 1 reply; 4+ messages in thread
From: kernel test robot @ 2026-09-17 10:00 UTC (permalink / raw)
To: David Hildenbrand; +Cc: Andrew Morton, Linux Memory Management List, mm-commits
tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
branch HEAD: 892f5b3b07e5b07f2f29c87750ff94fa58dcab73 mm/swap, PM: hibernate: atomically replace hibernation pin
Error/Warning (recently discovered and may have been fixed):
https://lore.kernel.org/oe-kbuild-all/202609171159.oaB1OaSG-lkp@intel.com
fs/proc/task_mmu.c:3448:3: error: call to undeclared function 'drop_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
fs/proc/task_mmu.c:3450:3: error: call to undeclared function 'reacquire_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
Error/Warning ids grouped by kconfigs:
recent_errors
`-- x86_64-randconfig-1014-20260917
|-- fs-proc-task_mmu.c:error:call-to-undeclared-function-drop_rcu-ISO-C99-and-later-do-not-support-implicit-function-declarations
`-- fs-proc-task_mmu.c:error:call-to-undeclared-function-reacquire_rcu-ISO-C99-and-later-do-not-support-implicit-function-declarations
elapsed time: m
configs tested: 238
configs skipped: 7
tested configs:
alpha allnoconfig gcc-16.1.0
alpha allyesconfig gcc-16.1.0
alpha defconfig gcc-16.1.0
arc allmodconfig gcc-16.1.0
arc allnoconfig gcc-16.1.0
arc allyesconfig gcc-16.1.0
arc defconfig gcc-16.1.0
arc randconfig-1000-20260917 gcc-8.5.0
arc randconfig-1001-20260917 gcc-15.2.0
arc randconfig-r1300-20260917 gcc-12.5.0 sparse
arc vdk_hs38_defconfig clang-24
arm allnoconfig clang-17
arm allnoconfig gcc-16.1.0
arm allyesconfig gcc-16.1.0
arm aspeed_g5_defconfig gcc-16.1.0
arm clps711x_defconfig clang-24
arm defconfig clang-24
arm defconfig gcc-16.1.0
arm integrator_defconfig clang-24
arm pxa_defconfig gcc-16.1.0
arm randconfig-1000-20260917 gcc-8.5.0
arm randconfig-1001-20260917 gcc-8.5.0
arm randconfig-1002-20260917 clang-17
arm randconfig-1003-20260917 gcc-8.5.0
arm s5pv210_defconfig clang-24
arm tegra_defconfig gcc-16.1.0
arm64 allmodconfig clang-24
arm64 allnoconfig gcc-16.1.0
arm64 defconfig gcc-16.1.0
arm64 randconfig-1000-20260917 gcc-8.5.0
arm64 randconfig-1001-20260917 gcc-8.5.0
arm64 randconfig-1002-20260917 clang-24
arm64 randconfig-1003-20260917 clang-17
csky allmodconfig gcc-16.1.0
csky allnoconfig gcc-16.1.0
csky defconfig gcc-16.1.0
csky randconfig-1000-20260917 gcc-9.5.0
csky randconfig-1001-20260917 gcc-11.5.0
hexagon allmodconfig clang-24
hexagon allnoconfig clang-24
hexagon allnoconfig gcc-16.1.0
hexagon defconfig clang-24
hexagon defconfig gcc-16.1.0
hexagon randconfig-1000-20260917 clang-20
hexagon randconfig-1001-20260917 clang-17
i386 allmodconfig gcc-14
i386 allnoconfig gcc-14
i386 allnoconfig gcc-16.1.0
i386 buildonly-randconfig-1000-20260917 clang-22
i386 buildonly-randconfig-1000-20260917 gcc-13
i386 buildonly-randconfig-1001-20260917 gcc-13
i386 buildonly-randconfig-1002-20260917 gcc-13
i386 buildonly-randconfig-1002-20260917 gcc-14
i386 buildonly-randconfig-1003-20260917 clang-22
i386 buildonly-randconfig-1003-20260917 gcc-13
i386 buildonly-randconfig-1004-20260917 clang-22
i386 buildonly-randconfig-1004-20260917 gcc-13
i386 buildonly-randconfig-1005-20260917 clang-22
i386 buildonly-randconfig-1005-20260917 gcc-13
i386 defconfig clang-22
i386 defconfig gcc-16.1.0
i386 randconfig-1000-20260917 clang-22
i386 randconfig-1001-20260917 clang-22
i386 randconfig-1002-20260917 clang-22
i386 randconfig-1003-20260917 clang-22
i386 randconfig-1003-20260917 gcc-14
i386 randconfig-1004-20260917 clang-22
i386 randconfig-1005-20260917 clang-22
i386 randconfig-1006-20260917 clang-22
i386 randconfig-1007-20260917 clang-22
i386 randconfig-1007-20260917 gcc-13
i386 randconfig-1008-20260917 clang-22
i386 randconfig-1009-20260917 clang-22
i386 randconfig-1010-20260917 clang-22
i386 randconfig-1011-20260917 clang-22
i386 randconfig-1011-20260917 gcc-14
i386 randconfig-1012-20260917 clang-22
i386 randconfig-1012-20260917 gcc-12
i386 randconfig-1013-20260917 clang-22
i386 randconfig-1300-20260917 gcc-14 sparse
i386 randconfig-1301-20260917 gcc-14 sparse
i386 randconfig-1302-20260917 gcc-12 sparse
i386 randconfig-1302-20260917 gcc-14 sparse
i386 randconfig-r1305-20260917 clang-22 sparse
i386 randconfig-r1306-20260917 clang-22 sparse
loongarch allmodconfig clang-19
loongarch allnoconfig clang-20
loongarch allnoconfig gcc-16.1.0
loongarch defconfig clang-24
loongarch randconfig-1000-20260917 clang-24
loongarch randconfig-1001-20260917 clang-24
m68k allmodconfig gcc-16.1.0
m68k allnoconfig gcc-16.1.0
m68k allyesconfig gcc-16.1.0
m68k defconfig clang-24
m68k defconfig gcc-16.1.0
microblaze allnoconfig gcc-16.1.0
microblaze allyesconfig gcc-16.1.0
microblaze defconfig clang-24
microblaze defconfig gcc-16.1.0
mips allmodconfig gcc-16.1.0
mips allnoconfig gcc-16.1.0
mips allyesconfig gcc-16.1.0
mips bmips_stb_defconfig clang-17
mips gcw0_defconfig clang-24
mips omega2p_defconfig clang-24
nios2 allmodconfig gcc-11.5.0
nios2 allnoconfig clang-24
nios2 allnoconfig gcc-11.5.0
nios2 defconfig clang-24
nios2 defconfig gcc-11.5.0
nios2 randconfig-1000-20260917 gcc-11.5.0
nios2 randconfig-1001-20260917 gcc-11.5.0
nios2 randconfig-r1307-20260917 gcc-11.5.0 sparse
openrisc allmodconfig gcc-16.1.0
openrisc allnoconfig clang-24
openrisc allnoconfig gcc-16.1.0
openrisc defconfig gcc-16.1.0
parisc allmodconfig gcc-16.1.0
parisc allnoconfig clang-24
parisc allnoconfig gcc-16.1.0
parisc allyesconfig gcc-16.1.0
parisc defconfig gcc-16.1.0
parisc randconfig-1000-20260917 gcc-11.5.0
parisc randconfig-1001-20260917 gcc-9.5.0
parisc randconfig-r1309-20260917 gcc-16.1.0 sparse
parisc64 defconfig clang-24
parisc64 defconfig gcc-16.1.0
powerpc allmodconfig gcc-16.1.0
powerpc allnoconfig clang-24
powerpc allnoconfig gcc-16.1.0
powerpc ebony_defconfig clang-24
powerpc g5_defconfig clang-24
powerpc randconfig-1000-20260917 clang-24
powerpc randconfig-1001-20260917 clang-24
powerpc randconfig-r1308-20260917 clang-24 sparse
powerpc64 randconfig-1000-20260917 clang-24
powerpc64 randconfig-1001-20260917 clang-22
riscv allmodconfig clang-24
riscv allnoconfig clang-24
riscv allnoconfig gcc-16.1.0
riscv allyesconfig clang-24
riscv defconfig clang-24
riscv nommu_k210_sdcard_defconfig clang-24
riscv randconfig-1000-20260917 gcc-16.1.0
riscv randconfig-1001-20260917 clang-17
riscv randconfig-r1303-20260917 gcc-14.3.0 sparse
s390 allmodconfig clang-24
s390 allnoconfig clang-24
s390 allyesconfig gcc-16.1.0
s390 defconfig clang-18
s390 randconfig-1000-20260917 clang-17
s390 randconfig-1001-20260917 clang-20
sh allmodconfig gcc-16.1.0
sh allnoconfig clang-24
sh allnoconfig gcc-16.1.0
sh allyesconfig gcc-16.1.0
sh defconfig gcc-14
sh defconfig gcc-16.1.0
sh randconfig-1000-20260917 gcc-16.1.0
sh randconfig-1001-20260917 gcc-11.5.0
sh randconfig-r1302-20260917 gcc-11.5.0 sparse
sh se7750_defconfig clang-24
sh sh7785lcr_32bit_defconfig gcc-16.1.0
sparc allnoconfig clang-24
sparc allnoconfig gcc-16.1.0
sparc defconfig gcc-16.1.0
sparc randconfig-1000-20260917 clang-17
sparc randconfig-1000-20260917 gcc-8.5.0
sparc randconfig-1001-20260917 clang-17
sparc randconfig-1001-20260917 gcc-15.2.0
sparc randconfig-r1301-20260917 gcc-16.1.0 sparse
sparc64 allmodconfig clang-20
sparc64 defconfig clang-24
sparc64 defconfig gcc-14
sparc64 randconfig-1000-20260917 clang-17
sparc64 randconfig-1000-20260917 clang-24
sparc64 randconfig-1001-20260917 clang-17
sparc64 randconfig-1001-20260917 gcc-8.5.0
um allmodconfig clang-17
um allnoconfig clang-17
um allnoconfig clang-24
um allyesconfig gcc-14
um defconfig clang-24
um defconfig gcc-14
um i386_defconfig gcc-14
um randconfig-1000-20260917 clang-17
um randconfig-1000-20260917 gcc-14
um randconfig-1001-20260917 clang-17
um x86_64_defconfig clang-24
um x86_64_defconfig gcc-14
x86_64 allnoconfig clang-22
x86_64 allnoconfig clang-24
x86_64 buildonly-randconfig-1000-20260917 gcc-13
x86_64 buildonly-randconfig-1000-20260917 gcc-14
x86_64 buildonly-randconfig-1001-20260917 gcc-14
x86_64 buildonly-randconfig-1002-20260917 gcc-14
x86_64 buildonly-randconfig-1003-20260917 gcc-14
x86_64 buildonly-randconfig-1004-20260917 gcc-14
x86_64 buildonly-randconfig-1005-20260917 clang-22
x86_64 buildonly-randconfig-1005-20260917 gcc-14
x86_64 defconfig gcc-14
x86_64 randconfig-1000-20260917 clang-22
x86_64 randconfig-1000-20260917 gcc-14
x86_64 randconfig-1001-20260917 clang-22
x86_64 randconfig-1002-20260917 clang-22
x86_64 randconfig-1002-20260917 gcc-14
x86_64 randconfig-1003-20260917 clang-22
x86_64 randconfig-1004-20260917 clang-22
x86_64 randconfig-1004-20260917 gcc-14
x86_64 randconfig-1005-20260917 clang-22
x86_64 randconfig-1005-20260917 gcc-14
x86_64 randconfig-1006-20260917 gcc-14
x86_64 randconfig-1007-20260917 gcc-14
x86_64 randconfig-1008-20260917 gcc-14
x86_64 randconfig-1009-20260917 clang-22
x86_64 randconfig-1010-20260917 clang-22
x86_64 randconfig-1011-20260917 gcc-14
x86_64 randconfig-1012-20260917 clang-22
x86_64 randconfig-1012-20260917 gcc-14
x86_64 randconfig-1013-20260917 clang-22
x86_64 randconfig-1013-20260917 gcc-14
x86_64 randconfig-1014-20260917 clang-22
x86_64 randconfig-1015-20260917 clang-22
x86_64 randconfig-1016-20260917 clang-22
x86_64 randconfig-1017-20260917 clang-22
x86_64 randconfig-1300-20260917 clang-22 sparse
x86_64 randconfig-1300-20260917 gcc-14 sparse
x86_64 randconfig-1301-20260917 gcc-14 sparse
x86_64 randconfig-1302-20260917 gcc-14 sparse
x86_64 rhel-9.4-rust clang-22
xtensa allnoconfig clang-24
xtensa allnoconfig gcc-16.1.0
xtensa allyesconfig gcc-16.1.0
xtensa randconfig-1000-20260917 clang-17
xtensa randconfig-1000-20260917 gcc-8.5.0
xtensa randconfig-1001-20260917 clang-17
xtensa randconfig-1001-20260917 gcc-13.4.0
--
0-DAY CI Kernel Test Service
https://github.com/intel/lkp-tests/wiki
^ permalink raw reply [flat|nested] 4+ messages in thread* Re: [akpm-mm:mm-new] BUILD REGRESSION 892f5b3b07e5b07f2f29c87750ff94fa58dcab73
2026-09-17 10:00 [akpm-mm:mm-new] BUILD REGRESSION 892f5b3b07e5b07f2f29c87750ff94fa58dcab73 kernel test robot
@ 2026-09-17 16:22 ` Andrew Morton
2026-09-17 16:57 ` Suren Baghdasaryan
0 siblings, 1 reply; 4+ messages in thread
From: Andrew Morton @ 2026-09-17 16:22 UTC (permalink / raw)
To: kernel test robot
Cc: David Hildenbrand, Linux Memory Management List, mm-commits,
Suren Baghdasaryan
On Thu, 17 Sep 2026 18:00:02 +0800 kernel test robot <lkp@intel.com> wrote:
> tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
> branch HEAD: 892f5b3b07e5b07f2f29c87750ff94fa58dcab73 mm/swap, PM: hibernate: atomically replace hibernation pin
>
> Error/Warning (recently discovered and may have been fixed):
>
> https://lore.kernel.org/oe-kbuild-all/202609171159.oaB1OaSG-lkp@intel.com
>
> fs/proc/task_mmu.c:3448:3: error: call to undeclared function 'drop_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
> fs/proc/task_mmu.c:3450:3: error: call to undeclared function 'reacquire_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
argh, we already fixed this five times.
Confirmed with x86_64 and
https://download.01.org/0day-ci/archive/20260917/202609171159.oaB1OaSG-lkp@intel.com/config
Suren, I'll drop the series. Please check this (and the 'lock_ctx_mm'
defined but not used failure) when preparing the planned respin.
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [akpm-mm:mm-new] BUILD REGRESSION 892f5b3b07e5b07f2f29c87750ff94fa58dcab73
2026-09-17 16:22 ` Andrew Morton
@ 2026-09-17 16:57 ` Suren Baghdasaryan
2026-09-18 15:36 ` Suren Baghdasaryan
0 siblings, 1 reply; 4+ messages in thread
From: Suren Baghdasaryan @ 2026-09-17 16:57 UTC (permalink / raw)
To: Andrew Morton
Cc: kernel test robot, David Hildenbrand,
Linux Memory Management List, mm-commits
On Thu, Sep 17, 2026 at 9:22 AM Andrew Morton <akpm@linux-foundation.org> wrote:
>
> On Thu, 17 Sep 2026 18:00:02 +0800 kernel test robot <lkp@intel.com> wrote:
>
> > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
> > branch HEAD: 892f5b3b07e5b07f2f29c87750ff94fa58dcab73 mm/swap, PM: hibernate: atomically replace hibernation pin
> >
> > Error/Warning (recently discovered and may have been fixed):
> >
> > https://lore.kernel.org/oe-kbuild-all/202609171159.oaB1OaSG-lkp@intel.com
> >
> > fs/proc/task_mmu.c:3448:3: error: call to undeclared function 'drop_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
> > fs/proc/task_mmu.c:3450:3: error: call to undeclared function 'reacquire_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
>
> argh, we already fixed this five times.
>
> Confirmed with x86_64 and
> https://download.01.org/0day-ci/archive/20260917/202609171159.oaB1OaSG-lkp@intel.com/config
>
> Suren, I'll drop the series. Please check this (and the 'lock_ctx_mm'
> defined but not used failure) when preparing the planned respin
Yep, I was planning to send the fixed series today anyway. Thanks!
>
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [akpm-mm:mm-new] BUILD REGRESSION 892f5b3b07e5b07f2f29c87750ff94fa58dcab73
2026-09-17 16:57 ` Suren Baghdasaryan
@ 2026-09-18 15:36 ` Suren Baghdasaryan
0 siblings, 0 replies; 4+ messages in thread
From: Suren Baghdasaryan @ 2026-09-18 15:36 UTC (permalink / raw)
To: Andrew Morton
Cc: kernel test robot, David Hildenbrand,
Linux Memory Management List, mm-commits
On Thu, Sep 17, 2026 at 9:57 AM Suren Baghdasaryan <surenb@google.com> wrote:
>
> On Thu, Sep 17, 2026 at 9:22 AM Andrew Morton <akpm@linux-foundation.org> wrote:
> >
> > On Thu, 17 Sep 2026 18:00:02 +0800 kernel test robot <lkp@intel.com> wrote:
> >
> > > tree/branch: https://git.kernel.org/pub/scm/linux/kernel/git/akpm/mm.git mm-new
> > > branch HEAD: 892f5b3b07e5b07f2f29c87750ff94fa58dcab73 mm/swap, PM: hibernate: atomically replace hibernation pin
> > >
> > > Error/Warning (recently discovered and may have been fixed):
> > >
> > > https://lore.kernel.org/oe-kbuild-all/202609171159.oaB1OaSG-lkp@intel.com
> > >
> > > fs/proc/task_mmu.c:3448:3: error: call to undeclared function 'drop_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
> > > fs/proc/task_mmu.c:3450:3: error: call to undeclared function 'reacquire_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
> >
> > argh, we already fixed this five times.
> >
> > Confirmed with x86_64 and
> > https://download.01.org/0day-ci/archive/20260917/202609171159.oaB1OaSG-lkp@intel.com/config
> >
> > Suren, I'll drop the series. Please check this (and the 'lock_ctx_mm'
> > defined but not used failure) when preparing the planned respin
>
> Yep, I was planning to send the fixed series today anyway. Thanks!
v5 of the patchset is posted at
https://lore.kernel.org/all/20260918153318.758387-1-surenb@google.com/
It should fix all the warnings including lock_ctx_mm one.
Thanks,
Suren.
>
> >
> >
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2026-09-18 15:36 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2026-09-17 10:00 [akpm-mm:mm-new] BUILD REGRESSION 892f5b3b07e5b07f2f29c87750ff94fa58dcab73 kernel test robot
2026-09-17 16:22 ` Andrew Morton
2026-09-17 16:57 ` Suren Baghdasaryan
2026-09-18 15:36 ` Suren Baghdasaryan
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