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* [akpm-mm:mm-new] BUILD REGRESSION 1c2b8d2725f84b43fabe3b3e9628c91db8ca6c65
@ 2026-09-28 12:23 kernel test robot
  0 siblings, 0 replies; only message in thread
From: kernel test robot @ 2026-09-28 12:23 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: 1c2b8d2725f84b43fabe3b3e9628c91db8ca6c65  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:3450:3: 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:3452:3: error: call to undeclared function 'reacquire_rcu'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]

Unverified Error/Warning (likely false positive, kindly check if interested):

    https://lore.kernel.org/oe-kbuild/202609121707.Hya5cxAX-lkp@intel.com
    https://lore.kernel.org/oe-kbuild/202609151628.hydefVEV-lkp@intel.com

    drivers/scsi/sg.c:294:1-17: ERROR: sg_fops: .read() can deadlock .write(); change nonseekable_open -> stream_open to fix.
    fs/proc/task_mmu.c:1427 show_smaps_rollup() warn: 'vma' is an error pointer or valid

Error/Warning ids grouped by kconfigs:

recent_errors
|-- i386-randconfig-2101-20260927
|   `-- drivers-scsi-sg.c:ERROR:sg_fops:read()-can-deadlock-write()-change-nonseekable_open-stream_open-to-fix.
|-- i386-randconfig-2200-20260927
|   `-- fs-proc-task_mmu.c-show_smaps_rollup()-warn:vma-is-an-error-pointer-or-valid
|-- nios2-randconfig-r2202-20260927
|   `-- fs-proc-task_mmu.c-show_smaps_rollup()-warn:vma-is-an-error-pointer-or-valid
|-- s390-randconfig-r2107-20260927
|   `-- drivers-scsi-sg.c:ERROR:sg_fops:read()-can-deadlock-write()-change-nonseekable_open-stream_open-to-fix.
|-- x86_64-randconfig-1000-20260928
|   |-- 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
|-- x86_64-randconfig-2100-20260927
|   `-- drivers-scsi-sg.c:ERROR:sg_fops:read()-can-deadlock-write()-change-nonseekable_open-stream_open-to-fix.
|-- x86_64-randconfig-2102-20260927
|   `-- drivers-scsi-sg.c:ERROR:sg_fops:read()-can-deadlock-write()-change-nonseekable_open-stream_open-to-fix.
|-- xtensa-randconfig-r2100-20260927
|   `-- drivers-scsi-sg.c:ERROR:sg_fops:read()-can-deadlock-write()-change-nonseekable_open-stream_open-to-fix.
`-- xtensa-randconfig-r2104-20260927
    `-- drivers-scsi-sg.c:ERROR:sg_fops:read()-can-deadlock-write()-change-nonseekable_open-stream_open-to-fix.

elapsed time: 743m

configs tested: 298
configs skipped: 6

tested configs:
alpha                              allnoconfig    gcc-16.1.0
alpha                             allyesconfig    gcc-16.1.0
alpha                                defconfig    gcc-16.1.0
alpha                randconfig-r2102-20260927    gcc-8.5.0  cocci
alpha                randconfig-r2103-20260927    clang-24   cocci
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-1000-20260928    gcc-12.5.0
arc                   randconfig-1001-20260928    gcc-14.3.0
arc                  randconfig-r2104-20260928    gcc-16.1.0 cocci
arc                  randconfig-r2105-20260927    gcc-8.5.0  cocci
arc                  randconfig-r2300-20260927    gcc-9.5.0  sparse
arc                  randconfig-r2303-20260928    clang-24   sparse
arm                                allnoconfig    clang-17
arm                               allyesconfig    gcc-16.1.0
arm                        aspeed_g4_defconfig    clang-20
arm                                  defconfig    clang-24
arm                   randconfig-1000-20260928    gcc-14.3.0
arm                   randconfig-1001-20260928    clang-24
arm                   randconfig-1002-20260928    clang-24
arm                   randconfig-1003-20260928    gcc-12.5.0
arm                  randconfig-r2300-20260927    clang-22   sparse
arm                  randconfig-r2304-20260927    clang-22   sparse
arm                  randconfig-r2304-20260928    clang-24   sparse
arm                        spear13xx_defconfig    gcc-16.1.0
arm64                             allmodconfig    clang-24
arm64                              allnoconfig    gcc-16.1.0
arm64                                defconfig    gcc-16.1.0
arm64                 randconfig-1000-20260928    gcc-15.2.0
arm64                 randconfig-1001-20260928    clang-24
arm64                 randconfig-1002-20260928    gcc-15.2.0
arm64                 randconfig-1003-20260928    gcc-8.5.0
arm64                randconfig-r2305-20260927    gcc-8.5.0  sparse
csky                              allmodconfig    gcc-16.1.0
csky                               allnoconfig    gcc-16.1.0
csky                                 defconfig    gcc-16.1.0
csky                  randconfig-1000-20260928    gcc-16.1.0
csky                  randconfig-1001-20260928    gcc-14.3.0
csky                 randconfig-r2301-20260927    gcc-16.1.0 sparse
hexagon                           allmodconfig    clang-24
hexagon                            allnoconfig    clang-24
hexagon                              defconfig    clang-24
hexagon               randconfig-1000-20260928    clang-24
hexagon               randconfig-1001-20260928    clang-19
hexagon              randconfig-r2104-20260927    clang-24   cocci
hexagon              randconfig-r2106-20260927    clang-24   cocci
i386                              allmodconfig    gcc-14
i386                               allnoconfig    gcc-14
i386                              allyesconfig    gcc-14
i386        buildonly-randconfig-1000-20260928    gcc-14
i386        buildonly-randconfig-1001-20260928    gcc-14
i386        buildonly-randconfig-1002-20260928    gcc-14
i386        buildonly-randconfig-1003-20260928    clang-22
i386        buildonly-randconfig-1004-20260928    gcc-14
i386        buildonly-randconfig-1005-20260928    gcc-14
i386                                 defconfig    clang-22
i386                  randconfig-1000-20260928    clang-22
i386                  randconfig-1001-20260928    gcc-12
i386                  randconfig-1002-20260928    gcc-14
i386                  randconfig-1003-20260928    gcc-14
i386                  randconfig-1004-20260928    gcc-14
i386                  randconfig-1005-20260928    gcc-14
i386                  randconfig-1006-20260928    gcc-14
i386                  randconfig-1007-20260928    gcc-12
i386                  randconfig-1008-20260928    clang-22
i386                  randconfig-1009-20260928    gcc-14
i386                  randconfig-1010-20260928    gcc-14
i386                  randconfig-1011-20260928    clang-22
i386                  randconfig-1012-20260928    clang-22
i386                  randconfig-1013-20260928    clang-22
i386                  randconfig-2100-20260927    clang-22   cocci
i386                  randconfig-2100-20260928    gcc-14     cocci
i386                  randconfig-2101-20260927    clang-22   cocci
i386                  randconfig-2101-20260928    gcc-14     cocci
i386                  randconfig-2102-20260927    clang-22   cocci
i386                  randconfig-2102-20260928    gcc-14     cocci
i386                  randconfig-2103-20260927    clang-22   cocci
i386                  randconfig-2103-20260928    gcc-14     cocci
i386                  randconfig-2200-20260927    clang-22   smatch
i386                  randconfig-2200-20260928    clang-22   smatch
i386                  randconfig-2300-20260927    clang-22   sparse
i386                  randconfig-2300-20260928    clang-22   sparse
i386                  randconfig-2301-20260927    clang-22   sparse
i386                  randconfig-2301-20260928    clang-22   sparse
i386                  randconfig-2302-20260927    clang-22   sparse
i386                  randconfig-2302-20260928    clang-22   sparse
i386                 randconfig-r2107-20260927    clang-24   cocci
i386                 randconfig-r2308-20260927    gcc-14     sparse
loongarch                         allmodconfig    clang-19
loongarch                          allnoconfig    clang-20
loongarch                            defconfig    clang-24
loongarch             randconfig-1000-20260928    gcc-16.1.0
loongarch             randconfig-1001-20260928    gcc-16.1.0
loongarch            randconfig-r2200-20260927    clang-24   smatch
m68k                              allmodconfig    gcc-16.1.0
m68k                               allnoconfig    gcc-16.1.0
m68k                              allyesconfig    gcc-16.1.0
m68k                           atari_defconfig    gcc-16.1.0
m68k                                 defconfig    gcc-16.1.0
m68k                 randconfig-r2304-20260927    gcc-14.3.0 sparse
microblaze                         allnoconfig    gcc-16.1.0
microblaze                        allyesconfig    gcc-16.1.0
microblaze                           defconfig    gcc-16.1.0
microblaze           randconfig-r2100-20260927    clang-24   cocci
microblaze           randconfig-r2106-20260928    gcc-16.1.0 cocci
mips                               allnoconfig    gcc-16.1.0
mips                              allyesconfig    gcc-16.1.0
mips                 randconfig-r2103-20260927    gcc-8.5.0  cocci
mips                 randconfig-r2305-20260927    clang-22   sparse
mips                           rb532_defconfig    clang-24
nios2                             allmodconfig    gcc-11.5.0
nios2                              allnoconfig    gcc-11.5.0
nios2                                defconfig    gcc-11.5.0
nios2                 randconfig-1000-20260928    gcc-8.5.0
nios2                 randconfig-1001-20260928    gcc-10.5.0
nios2                randconfig-r2202-20260927    gcc-8.5.0  smatch
nios2                randconfig-r2202-20260928    gcc-11.5.0 smatch
nios2                randconfig-r2303-20260927    clang-22   sparse
nios2                randconfig-r2307-20260927    gcc-9.5.0  sparse
nios2                randconfig-r2309-20260927    gcc-11.5.0 sparse
openrisc                          allmodconfig    gcc-16.1.0
openrisc                           allnoconfig    gcc-16.1.0
openrisc                             defconfig    gcc-16.1.0
openrisc             randconfig-r2106-20260927    clang-24   cocci
openrisc             randconfig-r2200-20260927    gcc-16.1.0 smatch
openrisc             randconfig-r2302-20260928    clang-24   sparse
openrisc             randconfig-r2303-20260927    gcc-16.1.0 sparse
openrisc             randconfig-r2305-20260928    clang-24   sparse
parisc                            allmodconfig    gcc-16.1.0
parisc                             allnoconfig    gcc-16.1.0
parisc                            allyesconfig    gcc-16.1.0
parisc                               defconfig    gcc-16.1.0
parisc                randconfig-1000-20260928    gcc-10.5.0
parisc                randconfig-1001-20260928    gcc-16.1.0
parisc               randconfig-r2100-20260927    gcc-8.5.0  cocci
parisc               randconfig-r2200-20260928    gcc-8.5.0  smatch
parisc               randconfig-r2300-20260928    clang-24   sparse
parisc64                             defconfig    gcc-16.1.0
powerpc                            allnoconfig    gcc-16.1.0
powerpc               randconfig-1000-20260928    gcc-13.4.0
powerpc               randconfig-1001-20260928    clang-24
powerpc              randconfig-r2103-20260927    gcc-9.5.0  cocci
powerpc                     sam440ep_defconfig    gcc-16.1.0
powerpc                         warp_defconfig    gcc-16.1.0
powerpc64             randconfig-1000-20260928    clang-24
powerpc64             randconfig-1001-20260928    gcc-13.4.0
powerpc64            randconfig-r2201-20260927    clang-24   smatch
riscv                             allmodconfig    clang-24
riscv                              allnoconfig    gcc-16.1.0
riscv                             allyesconfig    clang-24
riscv                                defconfig    clang-24
riscv                 randconfig-1000-20260928    gcc-13.4.0
riscv                 randconfig-1001-20260928    clang-24
riscv                 randconfig-2000-20260927    clang-24
riscv                 randconfig-2001-20260927    clang-24
riscv                 randconfig-2001-20260927    gcc-11.5.0
riscv                randconfig-r2102-20260927    clang-24   cocci
riscv                randconfig-r2201-20260927    gcc-8.5.0  smatch
riscv                randconfig-r2301-20260927    clang-22   sparse
riscv                randconfig-r2302-20260927    clang-24   sparse
riscv                randconfig-r2306-20260927    clang-21   sparse
riscv                randconfig-r2307-20260927    clang-24   sparse
riscv                randconfig-r2308-20260927    clang-24   sparse
s390                              allmodconfig    clang-24
s390                               allnoconfig    clang-24
s390                                 defconfig    clang-18
s390                  randconfig-1000-20260928    clang-17
s390                  randconfig-1001-20260928    gcc-15.2.0
s390                  randconfig-2000-20260927    clang-24
s390                  randconfig-2001-20260927    clang-24
s390                  randconfig-2001-20260927    gcc-15.2.0
s390                 randconfig-r2101-20260927    clang-24   cocci
s390                 randconfig-r2107-20260927    gcc-15.2.0 cocci
sh                                allmodconfig    gcc-16.1.0
sh                                 allnoconfig    gcc-16.1.0
sh                                allyesconfig    gcc-16.1.0
sh                                   defconfig    gcc-16.1.0
sh                    randconfig-1000-20260928    gcc-12.5.0
sh                    randconfig-1001-20260928    gcc-10.5.0
sh                    randconfig-2000-20260927    clang-24
sh                    randconfig-2000-20260927    gcc-12.5.0
sh                    randconfig-2001-20260927    clang-24
sh                    randconfig-2001-20260927    gcc-14.3.0
sh                   randconfig-r2102-20260927    gcc-16.1.0 cocci
sh                   randconfig-r2107-20260928    gcc-16.1.0 cocci
sh                            se7343_defconfig    gcc-16.1.0
sparc                              allnoconfig    gcc-16.1.0
sparc                                defconfig    gcc-16.1.0
sparc                 randconfig-1000-20260928    gcc-12.5.0
sparc                 randconfig-1001-20260928    gcc-16.1.0
sparc                 randconfig-2000-20260927    gcc-16.1.0
sparc                 randconfig-2000-20260928    gcc-13.4.0
sparc                 randconfig-2001-20260927    gcc-16.1.0
sparc                 randconfig-2001-20260928    gcc-13.4.0
sparc                randconfig-r2105-20260927    clang-24   cocci
sparc                randconfig-r2306-20260927    clang-24   sparse
sparc64                           allmodconfig    clang-20
sparc64                              defconfig    clang-24
sparc64               randconfig-1000-20260928    gcc-8.5.0
sparc64               randconfig-1001-20260928    clang-21
sparc64               randconfig-2000-20260927    clang-24
sparc64               randconfig-2000-20260927    gcc-16.1.0
sparc64               randconfig-2000-20260928    gcc-13.4.0
sparc64               randconfig-2001-20260927    clang-20
sparc64               randconfig-2001-20260927    gcc-16.1.0
sparc64               randconfig-2001-20260928    gcc-13.4.0
sparc64              randconfig-r2101-20260927    gcc-8.5.0  cocci
sparc64              randconfig-r2105-20260928    gcc-16.1.0 cocci
um                                allmodconfig    clang-17
um                                 allnoconfig    clang-17
um                                allyesconfig    gcc-14
um                                   defconfig    clang-24
um                              i386_defconfig    gcc-14
um                    randconfig-1000-20260928    clang-17
um                    randconfig-1001-20260928    gcc-13
um                    randconfig-2000-20260927    gcc-14
um                    randconfig-2000-20260927    gcc-16.1.0
um                    randconfig-2000-20260928    gcc-13.4.0
um                    randconfig-2001-20260927    clang-22
um                    randconfig-2001-20260927    gcc-16.1.0
um                    randconfig-2001-20260928    gcc-13.4.0
um                   randconfig-r2202-20260927    gcc-14     smatch
um                   randconfig-r2301-20260928    clang-24   sparse
um                   randconfig-r2302-20260927    clang-22   sparse
um                            x86_64_defconfig    clang-24
x86_64                            allmodconfig    clang-22
x86_64                             allnoconfig    clang-22
x86_64                            allyesconfig    clang-22
x86_64      buildonly-randconfig-1000-20260928    gcc-14
x86_64      buildonly-randconfig-1001-20260928    gcc-14
x86_64      buildonly-randconfig-1002-20260928    gcc-14
x86_64      buildonly-randconfig-1003-20260928    gcc-14
x86_64      buildonly-randconfig-1004-20260928    gcc-14
x86_64      buildonly-randconfig-1005-20260928    gcc-12
x86_64                               defconfig    gcc-14
x86_64                                   kexec    clang-22
x86_64                randconfig-1000-20260928    clang-22
x86_64                randconfig-1001-20260928    gcc-14
x86_64                randconfig-1002-20260928    gcc-14
x86_64                randconfig-1003-20260928    clang-22
x86_64                randconfig-1004-20260928    gcc-14
x86_64                randconfig-1005-20260928    gcc-14
x86_64                randconfig-1006-20260928    gcc-14
x86_64                randconfig-1007-20260928    clang-22
x86_64                randconfig-1008-20260928    clang-22
x86_64                randconfig-1009-20260928    gcc-14
x86_64                randconfig-1010-20260928    clang-22
x86_64                randconfig-1011-20260928    clang-22
x86_64                randconfig-1012-20260928    clang-22
x86_64                randconfig-1013-20260928    clang-22
x86_64                randconfig-1014-20260928    clang-22
x86_64                randconfig-1015-20260928    gcc-14
x86_64                randconfig-1016-20260928    clang-22
x86_64                randconfig-1017-20260928    clang-22
x86_64                randconfig-2100-20260927    clang-22   cocci
x86_64                randconfig-2100-20260928    gcc-12     cocci
x86_64                randconfig-2101-20260927    clang-22   cocci
x86_64                randconfig-2101-20260928    gcc-12     cocci
x86_64                randconfig-2102-20260927    clang-22   cocci
x86_64                randconfig-2102-20260927    gcc-14     cocci
x86_64                randconfig-2102-20260928    gcc-12     cocci
x86_64                randconfig-2103-20260927    clang-22   cocci
x86_64                randconfig-2103-20260928    gcc-12     cocci
x86_64                randconfig-2200-20260927    gcc-14     smatch
x86_64                randconfig-2200-20260928    gcc-14     smatch
x86_64                randconfig-2300-20260927    clang-22   sparse
x86_64                randconfig-2300-20260927    gcc-14     sparse
x86_64                randconfig-2300-20260928    clang-22   sparse
x86_64                randconfig-2301-20260927    clang-22   sparse
x86_64                randconfig-2301-20260927    gcc-14     sparse
x86_64                randconfig-2301-20260928    clang-22   sparse
x86_64                randconfig-2302-20260927    clang-22   sparse
x86_64                randconfig-2302-20260927    gcc-13     sparse
x86_64                randconfig-2302-20260928    clang-22   sparse
x86_64               randconfig-r2101-20260927    clang-22   cocci
x86_64                                rhel-9.4    clang-22
x86_64                            rhel-9.4-bpf    clang-22
x86_64                           rhel-9.4-func    clang-22
x86_64                     rhel-9.4-kselftests    clang-22
x86_64                          rhel-9.4-kunit    clang-22
x86_64                            rhel-9.4-ltp    clang-22
x86_64                           rhel-9.4-rust    clang-22
x86_64                           rhel-9.4-rust    clang-22
xtensa                             allnoconfig    gcc-16.1.0
xtensa                            allyesconfig    gcc-16.1.0
xtensa                randconfig-1000-20260928    gcc-8.5.0
xtensa                randconfig-1001-20260928    gcc-12.5.0
xtensa                randconfig-2000-20260927    gcc-16.1.0
xtensa                randconfig-2000-20260927    gcc-8.5.0
xtensa                randconfig-2000-20260928    gcc-13.4.0
xtensa                randconfig-2001-20260927    gcc-16.1.0
xtensa                randconfig-2001-20260928    gcc-13.4.0
xtensa               randconfig-r2100-20260927    gcc-15.2.0 cocci
xtensa               randconfig-r2104-20260927    gcc-11.5.0 cocci
xtensa               randconfig-r2201-20260927    gcc-16.1.0 smatch
xtensa               randconfig-r2309-20260927    clang-24   sparse

--
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https://github.com/intel/lkp-tests/wiki


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