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| author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
|---|---|---|
| committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-11 08:27:49 +0000 |
| commit | ace9429bb58fd418f0c81d4c2835699bddf6bde6 (patch) | |
| tree | b2d64bc10158fdd5497876388cd68142ca374ed3 /tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh | |
| parent | Initial commit. (diff) | |
| download | linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.tar.xz linux-ace9429bb58fd418f0c81d4c2835699bddf6bde6.zip | |
Adding upstream version 6.6.15.upstream/6.6.15
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh')
| -rw-r--r-- | tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh b/tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh new file mode 100644 index 0000000000..ade35576e7 --- /dev/null +++ b/tools/testing/selftests/damon/sysfs_update_removed_scheme_dir.sh @@ -0,0 +1,58 @@ +#!/bin/bash +# SPDX-License-Identifier: GPL-2.0 + +# Kselftest framework requirement - SKIP code is 4. +ksft_skip=4 + +if [ $EUID -ne 0 ] +then + echo "Run as root" + exit $ksft_skip +fi + +damon_sysfs="/sys/kernel/mm/damon/admin" +if [ ! -d "$damon_sysfs" ] +then + echo "damon sysfs not found" + exit $ksft_skip +fi + +# clear log +dmesg -C + +# start DAMON with a scheme +echo 1 > "$damon_sysfs/kdamonds/nr_kdamonds" +echo 1 > "$damon_sysfs/kdamonds/0/contexts/nr_contexts" +echo "vaddr" > "$damon_sysfs/kdamonds/0/contexts/0/operations" +echo 1 > "$damon_sysfs/kdamonds/0/contexts/0/targets/nr_targets" +echo $$ > "$damon_sysfs/kdamonds/0/contexts/0/targets/0/pid_target" +echo 1 > "$damon_sysfs/kdamonds/0/contexts/0/schemes/nr_schemes" +scheme_dir="$damon_sysfs/kdamonds/0/contexts/0/schemes/0" +echo 4096000 > "$scheme_dir/access_pattern/sz/max" +echo 20 > "$scheme_dir/access_pattern/nr_accesses/max" +echo 1024 > "$scheme_dir/access_pattern/age/max" +echo "on" > "$damon_sysfs/kdamonds/0/state" +sleep 0.3 + +# remove scheme sysfs dir +echo 0 > "$damon_sysfs/kdamonds/0/contexts/0/schemes/nr_schemes" + +# try to update stat of already removed scheme sysfs dir +echo "update_schemes_stats" > "$damon_sysfs/kdamonds/0/state" +if dmesg | grep -q BUG +then + echo "update_schemes_stats triggers a kernel bug" + dmesg + exit 1 +fi + +# try to update tried regions of already removed scheme sysfs dir +echo "update_schemes_tried_regions" > "$damon_sysfs/kdamonds/0/state" +if dmesg | grep -q BUG +then + echo "update_schemes_tried_regions triggers a kernel bug" + dmesg + exit 1 +fi + +echo "off" > "$damon_sysfs/kdamonds/0/state" |