diff options
Diffstat (limited to 'tools/testing/selftests/mm/run_vmtests.sh')
| -rwxr-xr-x | tools/testing/selftests/mm/run_vmtests.sh | 259 |
1 files changed, 225 insertions, 34 deletions
diff --git a/tools/testing/selftests/mm/run_vmtests.sh b/tools/testing/selftests/mm/run_vmtests.sh index 3e2bc818d566..d9173f2312b7 100755 --- a/tools/testing/selftests/mm/run_vmtests.sh +++ b/tools/testing/selftests/mm/run_vmtests.sh @@ -5,6 +5,7 @@ # Kselftest framework requirement - SKIP code is 4. ksft_skip=4 +count_total=0 count_pass=0 count_fail=0 count_skip=0 @@ -14,9 +15,11 @@ usage() { cat <<EOF usage: ${BASH_SOURCE[0]:-$0} [ options ] - -a: run all tests, including extra ones + -a: run all tests, including extra ones (other than destructive ones) -t: specify specific categories to tests to run -h: display this message + -n: disable TAP output + -d: run destructive tests The default behavior is to run required tests only. If -a is specified, will run all tests. @@ -42,6 +45,8 @@ separated by spaces: vmalloc smoke tests - hmm hmm smoke tests +- madv_guard + test madvise(2) MADV_GUARD_INSTALL and MADV_GUARD_REMOVE options - madv_populate test memadvise(2) MADV_POPULATE_{READ,WRITE} options - memfd_secret @@ -56,10 +61,18 @@ separated by spaces: memory protection key tests - soft_dirty test soft dirty page bit semantics +- pagemap + test pagemap_scan IOCTL +- pfnmap + tests for VM_PFNMAP handling +- process_madv + test for process_madv - cow test copy-on-write semantics - thp test transparent huge pages +- hugetlb + test hugetlbfs huge pages - migration invoke move_pages(2) to exercise the migration entry code paths in the kernel @@ -68,6 +81,12 @@ separated by spaces: read-only VMAs - mdwe test prctl(PR_SET_MDWE, ...) +- page_frag + test handling of page fragment allocation and freeing +- vma_merge + test VMA merge cases behave as expected +- rmap + test rmap behaves as expected example: ./run_vmtests.sh -t "hmm mmap ksm" EOF @@ -75,12 +94,16 @@ EOF } RUN_ALL=false +RUN_DESTRUCTIVE=false +TAP_PREFIX="# " -while getopts "aht:" OPT; do +while getopts "aht:n" OPT; do case ${OPT} in "a") RUN_ALL=true ;; "h") usage ;; "t") VM_SELFTEST_ITEMS=${OPTARG} ;; + "n") TAP_PREFIX= ;; + "d") RUN_DESTRUCTIVE=true ;; esac done shift $((OPTIND -1)) @@ -115,7 +138,7 @@ run_gup_matrix() { # -n: How many pages to fetch together? 512 is special # because it's default thp size (or 2M on x86), 123 to # just test partial gup when hit a huge in whatever form - for num in "-n 1" "-n 512" "-n 123"; do + for num in "-n 1" "-n 512" "-n 123" "-n -1"; do CATEGORY="gup_test" run_test ./gup_test \ $huge $test_cmd $write $share $num done @@ -141,19 +164,23 @@ done < /proc/meminfo # both of these requirements into account and attempt to increase # number of huge pages available. nr_cpus=$(nproc) -hpgsize_MB=$((hpgsize_KB / 1024)) -half_ufd_size_MB=$((((nr_cpus * hpgsize_MB + 127) / 128) * 128)) -needmem_KB=$((half_ufd_size_MB * 2 * 1024)) +uffd_min_KB=$((hpgsize_KB * nr_cpus * 2)) +hugetlb_min_KB=$((256 * 1024)) +if [[ $uffd_min_KB -gt $hugetlb_min_KB ]]; then + needmem_KB=$uffd_min_KB +else + needmem_KB=$hugetlb_min_KB +fi # set proper nr_hugepages if [ -n "$freepgs" ] && [ -n "$hpgsize_KB" ]; then - nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages) + orig_nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages) needpgs=$((needmem_KB / hpgsize_KB)) tries=2 while [ "$tries" -gt 0 ] && [ "$freepgs" -lt "$needpgs" ]; do lackpgs=$((needpgs - freepgs)) echo 3 > /proc/sys/vm/drop_caches - if ! echo $((lackpgs + nr_hugepgs)) > /proc/sys/vm/nr_hugepages; then + if ! echo $((lackpgs + orig_nr_hugepgs)) > /proc/sys/vm/nr_hugepages; then echo "Please run this test as root" exit $ksft_skip fi @@ -164,48 +191,91 @@ if [ -n "$freepgs" ] && [ -n "$hpgsize_KB" ]; then done < /proc/meminfo tries=$((tries - 1)) done + nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages) if [ "$freepgs" -lt "$needpgs" ]; then printf "Not enough huge pages available (%d < %d)\n" \ "$freepgs" "$needpgs" - exit 1 fi + HAVE_HUGEPAGES=1 else echo "no hugetlbfs support in kernel?" - exit 1 + HAVE_HUGEPAGES=0 fi # filter 64bit architectures -ARCH64STR="arm64 ia64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sparc64 x86_64" +ARCH64STR="arm64 mips64 parisc64 ppc64 ppc64le riscv64 s390x sparc64 x86_64" if [ -z "$ARCH" ]; then ARCH=$(uname -m 2>/dev/null | sed -e 's/aarch64.*/arm64/') fi VADDR64=0 echo "$ARCH64STR" | grep "$ARCH" &>/dev/null && VADDR64=1 +tap_prefix() { + sed -e "s/^/${TAP_PREFIX}/" +} + +tap_output() { + if [[ ! -z "$TAP_PREFIX" ]]; then + read str + echo $str + fi +} + +pretty_name() { + echo "$*" | sed -e 's/^\(bash \)\?\.\///' +} + # Usage: run_test [test binary] [arbitrary test arguments...] run_test() { if test_selected ${CATEGORY}; then + local skip=0 + + # On memory constrainted systems some tests can fail to allocate hugepages. + # perform some cleanup before the test for a higher success rate. + if [ ${CATEGORY} == "thp" -o ${CATEGORY} == "hugetlb" ]; then + if [ "${HAVE_HUGEPAGES}" = "1" ]; then + echo 3 > /proc/sys/vm/drop_caches + sleep 2 + echo 1 > /proc/sys/vm/compact_memory + sleep 2 + else + echo "hugepages not supported" | tap_prefix + skip=1 + fi + fi + + local test=$(pretty_name "$*") local title="running $*" local sep=$(echo -n "$title" | tr "[:graph:][:space:]" -) - printf "%s\n%s\n%s\n" "$sep" "$title" "$sep" + printf "%s\n%s\n%s\n" "$sep" "$title" "$sep" | tap_prefix - "$@" - local ret=$? + if [ "${skip}" != "1" ]; then + ("$@" 2>&1) | tap_prefix + local ret=${PIPESTATUS[0]} + else + local ret=$ksft_skip + fi + count_total=$(( count_total + 1 )) if [ $ret -eq 0 ]; then count_pass=$(( count_pass + 1 )) - echo "[PASS]" + echo "[PASS]" | tap_prefix + echo "ok ${count_total} ${test}" | tap_output elif [ $ret -eq $ksft_skip ]; then count_skip=$(( count_skip + 1 )) - echo "[SKIP]" + echo "[SKIP]" | tap_prefix + echo "ok ${count_total} ${test} # SKIP" | tap_output exitcode=$ksft_skip else count_fail=$(( count_fail + 1 )) - echo "[FAIL]" + echo "[FAIL]" | tap_prefix + echo "not ok ${count_total} ${test} # exit=$ret" | tap_output exitcode=1 fi fi # test_selected } +echo "TAP version 13" | tap_output + CATEGORY="hugetlb" run_test ./hugepage-mmap shmmax=$(cat /proc/sys/kernel/shmmax) @@ -220,11 +290,22 @@ CATEGORY="hugetlb" run_test ./map_hugetlb CATEGORY="hugetlb" run_test ./hugepage-mremap CATEGORY="hugetlb" run_test ./hugepage-vmemmap CATEGORY="hugetlb" run_test ./hugetlb-madvise +CATEGORY="hugetlb" run_test ./hugetlb_dio + +if [ "${HAVE_HUGEPAGES}" = "1" ]; then + nr_hugepages_tmp=$(cat /proc/sys/vm/nr_hugepages) + # For this test, we need one and just one huge page + echo 1 > /proc/sys/vm/nr_hugepages + CATEGORY="hugetlb" run_test ./hugetlb_fault_after_madv + CATEGORY="hugetlb" run_test ./hugetlb_madv_vs_map + # Restore the previous number of huge pages, since further tests rely on it + echo "$nr_hugepages_tmp" > /proc/sys/vm/nr_hugepages +fi if test_selected "hugetlb"; then - echo "NOTE: These hugetlb tests provide minimal coverage. Use" - echo " https://github.com/libhugetlbfs/libhugetlbfs.git for" - echo " hugetlb regression testing." + echo "NOTE: These hugetlb tests provide minimal coverage. Use" | tap_prefix + echo " https://github.com/libhugetlbfs/libhugetlbfs.git for" | tap_prefix + echo " hugetlb regression testing." | tap_prefix fi CATEGORY="mmap" run_test ./map_fixed_noreplace @@ -233,9 +314,11 @@ if $RUN_ALL; then run_gup_matrix else # get_user_pages_fast() benchmark - CATEGORY="gup_test" run_test ./gup_test -u + CATEGORY="gup_test" run_test ./gup_test -u -n 1 + CATEGORY="gup_test" run_test ./gup_test -u -n -1 # pin_user_pages_fast() benchmark - CATEGORY="gup_test" run_test ./gup_test -a + CATEGORY="gup_test" run_test ./gup_test -a -n 1 + CATEGORY="gup_test" run_test ./gup_test -a -n -1 fi # Dump pages 0, 19, and 4096, using pin_user_pages: CATEGORY="gup_test" run_test ./gup_test -ct -F 0x1 0 19 0x1000 @@ -244,19 +327,53 @@ CATEGORY="gup_test" run_test ./gup_longterm CATEGORY="userfaultfd" run_test ./uffd-unit-tests uffd_stress_bin=./uffd-stress CATEGORY="userfaultfd" run_test ${uffd_stress_bin} anon 20 16 -# Hugetlb tests require source and destination huge pages. Pass in half -# the size ($half_ufd_size_MB), which is used for *each*. +# Hugetlb tests require source and destination huge pages. Pass in almost half +# the size of the free pages we have, which is used for *each*. An adjustment +# of (nr_parallel - 1) is done (see nr_parallel in uffd-stress.c) to have some +# extra hugepages - this is done to prevent the test from failing by racily +# reserving more hugepages than strictly required. +# uffd-stress expects a region expressed in MiB, so we adjust +# half_ufd_size_MB accordingly. +adjustment=$(( (31 < (nr_cpus - 1)) ? 31 : (nr_cpus - 1) )) +half_ufd_size_MB=$((((freepgs - adjustment) * hpgsize_KB) / 1024 / 2)) CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb "$half_ufd_size_MB" 32 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} hugetlb-private "$half_ufd_size_MB" 32 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem 20 16 CATEGORY="userfaultfd" run_test ${uffd_stress_bin} shmem-private 20 16 +# uffd-wp-mremap requires at least one page of each size. +have_all_size_hugepgs=true +declare -A nr_size_hugepgs +for f in /sys/kernel/mm/hugepages/**/nr_hugepages; do + old=$(cat $f) + nr_size_hugepgs["$f"]="$old" + if [ "$old" == 0 ]; then + echo 1 > "$f" + fi + if [ $(cat "$f") == 0 ]; then + have_all_size_hugepgs=false + break + fi +done +if $have_all_size_hugepgs; then + CATEGORY="userfaultfd" run_test ./uffd-wp-mremap +else + echo "# SKIP ./uffd-wp-mremap" +fi #cleanup +for f in "${!nr_size_hugepgs[@]}"; do + echo "${nr_size_hugepgs["$f"]}" > "$f" +done echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages CATEGORY="compaction" run_test ./compaction_test -CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit +if command -v sudo &> /dev/null && sudo -u nobody ls ./on-fault-limit >/dev/null; +then + CATEGORY="mlock" run_test sudo -u nobody ./on-fault-limit +else + echo "# SKIP ./on-fault-limit" +fi CATEGORY="mmap" run_test ./map_populate @@ -269,6 +386,17 @@ CATEGORY="process_mrelease" run_test ./mrelease_test CATEGORY="mremap" run_test ./mremap_test CATEGORY="hugetlb" run_test ./thuge-gen +CATEGORY="hugetlb" run_test ./charge_reserved_hugetlb.sh -cgroup-v2 +CATEGORY="hugetlb" run_test ./hugetlb_reparenting_test.sh -cgroup-v2 +if $RUN_DESTRUCTIVE; then +nr_hugepages_tmp=$(cat /proc/sys/vm/nr_hugepages) +enable_soft_offline=$(cat /proc/sys/vm/enable_soft_offline) +echo 8 > /proc/sys/vm/nr_hugepages +CATEGORY="hugetlb" run_test ./hugetlb-soft-offline +echo "$nr_hugepages_tmp" > /proc/sys/vm/nr_hugepages +echo "$enable_soft_offline" > /proc/sys/vm/enable_soft_offline +CATEGORY="hugetlb" run_test ./hugetlb-read-hwpoison +fi if [ $VADDR64 -ne 0 ]; then @@ -276,10 +404,12 @@ if [ $VADDR64 -ne 0 ]; then # allows high virtual address allocation requests independent # of platform's physical memory. - prev_policy=$(cat /proc/sys/vm/overcommit_memory) - echo 1 > /proc/sys/vm/overcommit_memory - CATEGORY="hugevm" run_test ./virtual_address_range - echo $prev_policy > /proc/sys/vm/overcommit_memory + if [ -x ./virtual_address_range ]; then + prev_policy=$(cat /proc/sys/vm/overcommit_memory) + echo 1 > /proc/sys/vm/overcommit_memory + CATEGORY="hugevm" run_test ./virtual_address_range + echo $prev_policy > /proc/sys/vm/overcommit_memory + fi # va high address boundary switch test ARCH_ARM64="arm64" @@ -300,13 +430,29 @@ CATEGORY="mremap" run_test ./mremap_dontunmap CATEGORY="hmm" run_test bash ./test_hmm.sh smoke +# MADV_GUARD_INSTALL and MADV_GUARD_REMOVE tests +CATEGORY="madv_guard" run_test ./guard-regions + # MADV_POPULATE_READ and MADV_POPULATE_WRITE tests CATEGORY="madv_populate" run_test ./madv_populate +# PROCESS_MADV test +CATEGORY="process_madv" run_test ./process_madv + +CATEGORY="vma_merge" run_test ./merge + +if [ -x ./memfd_secret ] +then +if [ -f /proc/sys/kernel/yama/ptrace_scope ]; then + (echo 0 > /proc/sys/kernel/yama/ptrace_scope 2>&1) | tap_prefix +fi CATEGORY="memfd_secret" run_test ./memfd_secret +fi # KSM KSM_MERGE_TIME_HUGE_PAGES test with size of 100 -CATEGORY="ksm" run_test ./ksm_tests -H -s 100 +if [ "${HAVE_HUGEPAGES}" = "1" ]; then + CATEGORY="ksm" run_test ./ksm_tests -H -s 100 +fi # KSM KSM_MERGE_TIME test with size of 100 CATEGORY="ksm" run_test ./ksm_tests -P -s 100 # KSM MADV_MERGEABLE test with 10 identical pages @@ -324,9 +470,8 @@ CATEGORY="ksm_numa" run_test ./ksm_tests -N -m 0 CATEGORY="ksm" run_test ./ksm_functional_tests -run_test ./ksm_functional_tests - # protection_keys tests +nr_hugepgs=$(cat /proc/sys/vm/nr_hugepages) if [ -x ./protection_keys_32 ] then CATEGORY="pkey" run_test ./protection_keys_32 @@ -336,20 +481,53 @@ if [ -x ./protection_keys_64 ] then CATEGORY="pkey" run_test ./protection_keys_64 fi +echo "$nr_hugepgs" > /proc/sys/vm/nr_hugepages if [ -x ./soft-dirty ] then CATEGORY="soft_dirty" run_test ./soft-dirty fi +CATEGORY="pagemap" run_test ./pagemap_ioctl + +CATEGORY="pfnmap" run_test ./pfnmap + # COW tests CATEGORY="cow" run_test ./cow CATEGORY="thp" run_test ./khugepaged +CATEGORY="thp" run_test ./khugepaged -s 2 + +CATEGORY="thp" run_test ./khugepaged all:shmem + +CATEGORY="thp" run_test ./khugepaged -s 4 all:shmem + CATEGORY="thp" run_test ./transhuge-stress -d 20 -CATEGORY="thp" run_test ./split_huge_page_test +# Try to create XFS if not provided +if [ -z "${SPLIT_HUGE_PAGE_TEST_XFS_PATH}" ]; then + if [ "${HAVE_HUGEPAGES}" = "1" ]; then + if test_selected "thp"; then + if grep xfs /proc/filesystems &>/dev/null; then + XFS_IMG=$(mktemp /tmp/xfs_img_XXXXXX) + SPLIT_HUGE_PAGE_TEST_XFS_PATH=$(mktemp -d /tmp/xfs_dir_XXXXXX) + truncate -s 314572800 ${XFS_IMG} + mkfs.xfs -q ${XFS_IMG} + mount -o loop ${XFS_IMG} ${SPLIT_HUGE_PAGE_TEST_XFS_PATH} + MOUNTED_XFS=1 + fi + fi + fi +fi + +CATEGORY="thp" run_test ./split_huge_page_test ${SPLIT_HUGE_PAGE_TEST_XFS_PATH} + +if [ -n "${MOUNTED_XFS}" ]; then + umount ${SPLIT_HUGE_PAGE_TEST_XFS_PATH} + rmdir ${SPLIT_HUGE_PAGE_TEST_XFS_PATH} + rm -f ${XFS_IMG} +fi CATEGORY="migration" run_test ./migration @@ -357,6 +535,19 @@ CATEGORY="mkdirty" run_test ./mkdirty CATEGORY="mdwe" run_test ./mdwe_test -echo "SUMMARY: PASS=${count_pass} SKIP=${count_skip} FAIL=${count_fail}" +CATEGORY="page_frag" run_test ./test_page_frag.sh smoke + +CATEGORY="page_frag" run_test ./test_page_frag.sh aligned + +CATEGORY="page_frag" run_test ./test_page_frag.sh nonaligned + +CATEGORY="rmap" run_test ./rmap + +if [ "${HAVE_HUGEPAGES}" = 1 ]; then + echo "$orig_nr_hugepgs" > /proc/sys/vm/nr_hugepages +fi + +echo "SUMMARY: PASS=${count_pass} SKIP=${count_skip} FAIL=${count_fail}" | tap_prefix +echo "1..${count_total}" | tap_output exit $exitcode |