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linux/tools/testing/selftests/mm
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Mark Brown a3907a3169 selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y 
Several of the mm selftests made use of /proc/pid/mem as part of their
operation but we do not specify this in the config fragment for them, at
least mkdirty and ksm_functional_tests have this requirement.

This has been working fine in practice since PROC_MEM_ALWAYS_FORCE was the
default setting but commit 599bbba5a3 ("proc: make PROC_MEM_FORCE_PTRACE
the Kconfig default") that is no longer the case, meaning that tests run
on kernels built based on defconfigs have started having the new more
restrictive default and failing.  Add PROC_MEM_ALWAYS_FORCE to the config
fragment for the mm selftests.

Thanks to Aishwarya TCV for spotting the issue and identifying the commit
that introduced it.

Link: https://lore.kernel.org/20260416-selftests-mm-proc-mem-always-force-v1-1-3f5865153c67@kernel.org
Fixes: 599bbba5a3 ("proc: make PROC_MEM_FORCE_PTRACE the Kconfig default") 
Signed-off-by: Mark Brown <broonie@kernel.org>
Reported-by: Aishwarya TCV <aishwarya.tcv@arm.com>
Reviewed-by: Mike Rapoport (Microsoft) <rppt@kernel.org>
Acked-by: David Hildenbrand (Arm) <david@kernel.org>
Reviewed-by: Anshuman Khandual <anshuman.khandual@arm.com>
Reviewed-by: Dev Jain <dev.jain@arm.com>
Cc: Lorenzo Stoakes <ljs@kernel.org>
Cc: Michal Hocko <mhocko@suse.com>
Cc: Mike Rapoport <rppt@kernel.org>
Cc: Shuah Khan <shuah@kernel.org>
Cc: Suren Baghdasaryan <surenb@google.com>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
2026-04-27 05:54:26 -07:00
..
page_frag selftests/mm: default KDIR to build directory 2026-01-31 14:22:40 -08:00
.gitignore selftests/mm: add folio_split() and filemap_get_entry() race test 2026-04-05 13:53:36 -07:00
charge_reserved_hugetlb.sh selftests: mm: skip charge_reserved_hugetlb without killall 2026-04-18 00:10:56 -07:00
check_config.sh selftests/mm: pass down full CC and CFLAGS to check_config.sh 2026-01-31 14:22:40 -08:00
compaction_test.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
config selftests/mm: specify requirement for PROC_MEM_ALWAYS_FORCE=y 2026-04-27 05:54:26 -07:00
cow.c selftests/mm: check that FORCE_READ() succeeded 2026-01-31 14:22:41 -08:00
droppable.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
folio_split_race_test.c selftests/mm: add folio_split() and filemap_get_entry() race test 2026-04-05 13:53:36 -07:00
guard-regions.c selftests/mm/guard-regions: skip collapse test when thp not enabled 2026-04-18 00:10:54 -07:00
gup_longterm.c tools/testing/selftests: fix gup_longterm for unknown fs 2026-01-14 22:16:26 -08:00
gup_test.c Significant patch series in this pull request: 2025-12-06 14:01:20 -08:00
hmm-tests.c selftests/mm: hmm-tests: don't hardcode THP size to 2MB 2026-04-18 00:10:52 -07:00
hugepage-mmap.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
hugepage-mremap.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
hugepage-shm.c selftests/mm: remove unnecessary ia64 code and comment 2024-09-03 21:15:38 -07:00
hugepage-vmemmap.c selftests/mm: remove unnecessary ia64 code and comment 2024-09-03 21:15:38 -07:00
hugetlb_dio.c selftests/mm: skip hugetlb_dio tests when DIO alignment is incompatible 2026-04-18 00:10:52 -07:00
hugetlb_fault_after_madv.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
hugetlb_madv_vs_map.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
hugetlb_reparenting_test.sh selftests/mm: restore default nr_hugepages value during cleanup in hugetlb_reparenting_test.sh 2025-05-11 17:48:29 -07:00
hugetlb-madvise.c selftests/mm: introduce helper to read every page 2026-01-31 14:22:41 -08:00
hugetlb-read-hwpoison.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
hugetlb-soft-offline.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
khugepaged.c selftests/mm: remove PROT_EXEC req from file-collapse tests 2025-09-21 14:22:31 -07:00
ksft_compaction.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_cow.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_gup_test.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_hmm.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_hugetlb.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_hugevm.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_ksm_numa.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_ksm.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_madv_guard.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_madv_populate.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_mdwe.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_memfd_secret.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_memory_failure.sh selftests/mm: add memory failure anonymous page test 2026-02-12 15:43:01 -08:00
ksft_migration.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_mkdirty.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_mlock.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_mmap.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_mremap.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_page_frag.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_pagemap.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_pfnmap.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_pkey.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_process_madv.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_process_mrelease.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_rmap.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_soft_dirty.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_thp.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_userfaultfd.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_vma_merge.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksft_vmalloc.sh selftests/mm: have the harness run each test category separately 2026-01-31 14:22:53 -08:00
ksm_functional_tests.c Significant patch series in this pull request: 2025-12-06 14:01:20 -08:00
ksm_tests.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
madv_populate.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
Makefile selftests/mm: add folio_split() and filemap_get_entry() race test 2026-04-05 13:53:36 -07:00
map_fixed_noreplace.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
map_hugetlb.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
map_populate.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
mdwe_test.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
memfd_secret.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
memory-failure.c selftests/mm: remove duplicate include of unistd.h 2026-04-05 13:53:01 -07:00
merge.c tools/testing/selftests: add merge test for partial msealed range 2026-04-18 00:10:52 -07:00
migration.c selftests/mm: skip migration tests if NUMA is unavailable 2026-04-05 13:52:57 -07:00
mkdirty.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
mlock-random-test.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
mlock2-tests.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
mlock2.h selftests/mm/mlock: print error on failure 2025-03-16 22:06:40 -07:00
mrelease_test.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
mremap_dontunmap.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
mremap_test.c Significant patch series in this pull request: 2025-12-06 14:01:20 -08:00
mseal_helpers.h selftests/mm: mseal, self_elf: rename TEST_END_CHECK to REPORT_TEST_PASS 2024-07-03 19:30:07 -07:00
mseal_test.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
on-fault-limit.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
pagemap_ioctl.c selftests/mm: pagemap_ioctl: remove hungarian notation 2026-04-05 13:53:27 -07:00
pfnmap.c selftests/mm: report SKIP in pfnmap if a check fails 2026-01-31 14:22:42 -08:00
pkey_sighandler_tests.c selftests/mm: add -Wunreachable-code and fix warnings 2025-09-21 14:22:34 -07:00
pkey_util.c selftests/mm: fix build break when compiling pkey_util.c 2025-05-07 23:39:41 -07:00
pkey-arm64.h selftests/mm: rename pkey register macro 2025-01-13 22:40:56 -08:00
pkey-helpers.h selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
pkey-powerpc.h selftests/mm: fix a build failure on powerpc 2025-05-07 23:39:41 -07:00
pkey-x86.h selftests/mm: ensure pkey-*.h define inline functions only 2025-01-13 22:40:55 -08:00
prctl_thp_disable.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
process_madv.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
protection_keys.c selftests/mm: protection_keys: fix dead code 2025-09-21 14:22:34 -07:00
rmap.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
run_vmtests.sh selftests/mm: add folio_split() and filemap_get_entry() race test 2026-04-05 13:53:36 -07:00
settings selftests/mm: increase timeout from 180 to 900 seconds 2025-06-19 20:48:01 -07:00
soft-dirty.c selftests/mm: soft-dirty: skip two tests when thp is not available 2026-04-18 00:10:54 -07:00
split_huge_page_test.c selftests/mm: split_huge_page_test: skip the test when thp is not available 2026-04-18 00:10:54 -07:00
test_hmm.sh selftests/mm: give scripts execute permission 2023-07-14 09:24:31 -07:00
test_page_frag.sh mm: page_frag: add a test module for page_frag 2024-11-11 10:56:26 -08:00
test_vmalloc.sh lib/test_vmalloc.c: minor fixes to test_vmalloc.c 2026-01-20 19:24:47 -08:00
thp_settings.c selftests/mm: move write_file helper to vm_util 2026-04-18 00:10:54 -07:00
thp_settings.h selftests/mm: move write_file helper to vm_util 2026-04-18 00:10:54 -07:00
thuge-gen.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
transhuge-stress.c selftests/mm: transhuge_stress: skip the test when thp not available 2026-04-18 00:10:54 -07:00
uffd-common.c selftests/mm/uffd: remove static address usage in shmem_allocate_area() 2025-11-20 13:44:00 -08:00
uffd-common.h selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
uffd-stress.c selftests/mm/uffd: initialize char variable to Null 2025-11-29 10:41:09 -08:00
uffd-unit-tests.c selftests/mm: fix thread state check in uffd-unit-tests 2025-12-23 11:23:14 -08:00
uffd-wp-mremap.c selftests: complete kselftest include centralization 2025-11-27 14:24:31 -08:00
va_high_addr_switch.c selftests/mm: va_high_addr_switch return fail when either test failed 2026-01-20 19:24:52 -08:00
va_high_addr_switch.sh selftests/mm: fix comment for check_test_requirements 2026-01-20 19:24:52 -08:00
vm_util.c selftests/mm/vm_util: robust write_file() 2026-04-18 00:10:54 -07:00
vm_util.h selftests/mm: move write_file helper to vm_util 2026-04-18 00:10:54 -07:00
write_hugetlb_memory.sh selftests/mm: switch to bash from sh 2024-01-25 23:52:20 -08:00
write_to_hugetlbfs.c selftests/mm/write_to_hugetlbfs: parse -s as size_t 2026-01-20 19:24:50 -08:00