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authorRicardo B. Marlière <rbm@suse.com>2026-03-20 21:29:19 +0300
committerShuah Khan <skhan@linuxfoundation.org>2026-04-13 20:05:39 +0300
commitd6ea9f404b905ba7351d6b0e9ed611d9d0bf20f7 (patch)
tree6e13c09be0fd1affa9a30ca9b0ca4955aeb1c77c
parenta82e076f4a0c084b2f5470db31dd9282ba3fcbb2 (diff)
downloadlinux-d6ea9f404b905ba7351d6b0e9ed611d9d0bf20f7.tar.xz
selftests/run_kselftest.sh: Allow choosing per-test log directory
The --per-test-log option currently hard-codes /tmp. However, the system under test will most likely have tmpfs mounted there. Since it's not clear which filenames the log files will have, the user should be able to specify a persistent directory to store the logs. Keeping those logs are important because the run_kselftest.sh runner will only yield KTAP output, trimming information that is otherwise available through running individual tests directly. Allow --per-test-log to take an optional directory argument. Keep the existing behaviour when the option is passed without an argument, but if a directory is provided, create it if needed, reject non-directory paths and non-writable directories, canonicalize it, and have runner.sh write per-test logs there instead of /tmp. This also makes relative paths safe by resolving them before the runner changes into a collection directory. Signed-off-by: Ricardo B. Marlière <rbm@suse.com> Link: https://lore.kernel.org/r/20260320-selftests-fixes-v1-4-79144f76be01@suse.com Signed-off-by: Shuah Khan <skhan@linuxfoundation.org>
-rw-r--r--tools/testing/selftests/kselftest/runner.sh3
-rwxr-xr-xtools/testing/selftests/run_kselftest.sh30
2 files changed, 30 insertions, 3 deletions
diff --git a/tools/testing/selftests/kselftest/runner.sh b/tools/testing/selftests/kselftest/runner.sh
index 3eeec93c9da4..6da3390825fe 100644
--- a/tools/testing/selftests/kselftest/runner.sh
+++ b/tools/testing/selftests/kselftest/runner.sh
@@ -6,6 +6,7 @@
export timeout_rc=124
export logfile=/dev/stdout
export per_test_logging=
+export per_test_log_dir=/tmp
export RUN_IN_NETNS=
# Defaults for "settings" file fields:
@@ -196,7 +197,7 @@ run_many()
BASENAME_TEST=$(basename $TEST)
test_num=$(( test_num + 1 ))
if [ -n "$per_test_logging" ]; then
- logfile="/tmp/$BASENAME_TEST"
+ logfile="$per_test_log_dir/$BASENAME_TEST"
cat /dev/null > "$logfile"
fi
if [ -n "$RUN_IN_NETNS" ]; then
diff --git a/tools/testing/selftests/run_kselftest.sh b/tools/testing/selftests/run_kselftest.sh
index 8fa808e10455..e11b0e93ba41 100755
--- a/tools/testing/selftests/run_kselftest.sh
+++ b/tools/testing/selftests/run_kselftest.sh
@@ -22,7 +22,7 @@ usage()
cat <<EOF
Usage: $0 [OPTIONS]
-s | --summary Print summary with detailed log in output.log (conflict with -p)
- -p | --per-test-log Print test log in /tmp with each test name (conflict with -s)
+ -p | --per-test-log [DIR] Print test log in /tmp or DIR with each test name (conflict with -s)
-t | --test COLLECTION:TEST Run TEST from COLLECTION
-S | --skip COLLECTION:TEST Skip TEST from COLLECTION
-c | --collection COLLECTION Run all tests from COLLECTION
@@ -50,7 +50,33 @@ while true; do
shift ;;
-p | --per-test-log)
per_test_logging=1
- shift ;;
+ if [ -n "$2" ] && [ "${2#-}" = "$2" ]; then
+ per_test_log_dir="$2"
+ if [ -e "$per_test_log_dir" ] && [ ! -d "$per_test_log_dir" ]; then
+ echo "Per-test log path is not a dir:" \
+ "$per_test_log_dir" >&2
+ exit 1
+ fi
+ if [ ! -d "$per_test_log_dir" ] && \
+ ! mkdir -p "$per_test_log_dir"; then
+ echo "Could not create log dir:" \
+ "$per_test_log_dir" >&2
+ exit 1
+ fi
+ per_test_log_dir=$(cd "$per_test_log_dir" && pwd -P)
+ if [ -z "$per_test_log_dir" ]; then
+ echo "Could not resolve per-test log directory" >&2
+ exit 1
+ fi
+ if [ ! -w "$per_test_log_dir" ]; then
+ echo "Per-test log dir is not writable:" \
+ "$per_test_log_dir" >&2
+ exit 1
+ fi
+ shift 2
+ else
+ shift
+ fi ;;
-t | --test)
TESTS="$TESTS $2"
shift 2 ;;