kernel.git/tools/testing/selftests/kselftest, branch linux-6.10.y

selftests: ktap_helpers: Make it POSIX-compliant

2024-05-06T19:57:20Z

There are a couple uses of bash specific syntax in the script. Change them to the equivalent POSIX syntax. This doesn't change functionality and allows non-bash test scripts to make use of these helpers. Reported-by: Mike Looijmans Closes: https://lore.kernel.org/all/efae4037-c22a-40be-8ba9-7c1c12ece042@topic.nl/ Fixes: 2dd0b5a8fcc4 ("selftests: ktap_helpers: Add a helper to finish the test") Fixes: 14571ab1ad21 ("kselftest: Add new test for detecting unprobed Devicetree devices") Signed-off-by: Nícolas F. R. A. Prado Reviewed-by: Muhammad Usama Anjum Signed-off-by: Shuah Khan

selftests: ktap_helpers: Add a helper to finish the test

2024-02-20T22:53:20Z

Similar to the C counterpart, keep track of the number of test cases in the test plan and add a helper function to be called at the end of the test to print the results and exit with the corresponding exit code. Signed-off-by: Nícolas F. R. A. Prado Signed-off-by: Shuah Khan

selftests: ktap_helpers: Add a helper to abort the test

2024-02-20T22:53:15Z

Similar to the C counterpart, add a helper function to abort the remainder of the test. Signed-off-by: Nícolas F. R. A. Prado Signed-off-by: Shuah Khan

selftests: ktap_helpers: Add helper to pass/fail test based on exit code

2024-02-20T22:53:08Z

Similar to the C counterpart, add a helper function that runs a command and passes or fails the test based on the result. Signed-off-by: Nícolas F. R. A. Prado Signed-off-by: Shuah Khan

selftests: ktap_helpers: Add helper to print diagnostic messages

2024-02-20T22:53:02Z

Similar to the C counterpart, add a helper to print a diagnostic message. Signed-off-by: Nícolas F. R. A. Prado Signed-off-by: Shuah Khan

selftests: Move KTAP bash helpers to selftests common folder

2024-02-20T22:52:55Z

Move bash helpers for outputting in KTAP format to the common selftests folder. This allows kselftests other than the dt one to source the file and make use of the helper functions. Define pass, fail and skip codes in the same file too. Signed-off-by: Laura Nao Reviewed-by: Nícolas F. R. A. Prado Tested-by: Nícolas F. R. A. Prado Acked-by: Rob Herring Signed-off-by: Shuah Khan

kselftest/runner.sh: add netns support

2023-12-23T00:26:32Z

Add a variable RUN_IN_NETNS if the user wants to run all the selected tests in namespace in parallel. With this, we can save a lot of testing time. Note that some tests may not fit to run in namespace, e.g. net/drop_monitor_tests.sh, as the dwdump needs to be run in init ns. I also added another parameter -p to make all the logs reported separately instead of mixing them in the stdout or output.log. Nit: the NUM in run_one is not used, rename it to test_num. Acked-by: David Ahern Signed-off-by: Hangbin Liu Signed-off-by: David S. Miller

Merge tag 'linux-kselftest-next-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest

2023-09-12T16:10:36Z

Pull kselftest fixes from Shuah Khan: - kselftest runner script to propagate SIGTERM to runner child to avoid kselftest hang - install symlinks required for test execution to avoid test failures - kselftest dependency checker script argument parsing * tag 'linux-kselftest-next-6.6-rc2' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: selftests: Keep symlinks, when possible selftests: fix dependency checker script kselftest/runner.sh: Propagate SIGTERM to runner child selftests/ftrace: Correctly enable event in instance-event.tc

kselftest/runner.sh: Propagate SIGTERM to runner child

2023-09-08T16:06:11Z

Timeouts in kselftest are done using the "timeout" command with the "--foreground" option. Without the "foreground" option, it is not possible for a user to cancel the runner using SIGINT, because the signal is not propagated to timeout which is running in a different process group. The "forground" options places the timeout in the same process group as its parent, but only sends the SIGTERM (on timeout) signal to the forked process. Unfortunately, this does not play nice with all kselftests, e.g. "net:fcnal-test.sh", where the child processes will linger because timeout does not send SIGTERM to the group. Some users have noted these hangs [1]. Fix this by nesting the timeout with an additional timeout without the foreground option. Link: https://lore.kernel.org/all/7650b2eb-0aee-a2b0-2e64-c9bc63210f67@alu.unizg.hr/ # [1] Fixes: 651e0d881461 ("kselftest/runner: allow to properly deliver signals to tests") Signed-off-by: Björn Töpel Signed-off-by: Shuah Khan

selftests: line buffer test program's stdout

2023-08-18T17:12:42Z

Patch series "selftests/mm fixes for arm64", v3. Given my on-going work on large anon folios and contpte mappings, I decided it would be a good idea to start running mm selftests to help guard against regressions. However, it soon became clear that I couldn't get the suite to run cleanly on arm64 with a vanilla v6.5-rc1 kernel (perhaps I'm just doing it wrong??), so got stuck in a rabbit hole trying to debug and fix all the issues. Some were down to misconfigurations, but I also found a number of issues with the tests and even a couple of issues with the kernel. This patch (of 8): The selftests runner pipes the test program's stdout to tap_prefix. The presence of the pipe means that the test program sets its stdout to be fully buffered (as aposed to line buffered when directly connected to the terminal). The block buffering means that there is often content in the buffer at fork() time, which causes the output to end up duplicated. This was causing problems for mm:cow where test results were duplicated 20-30x. Solve this by using `stdbuf`, when available to force the test program to use line buffered mode. This means previously printf'ed results are flushed out of the program before any fork(). Additionally, explicitly set line buffer mode in ksft_print_header(), which means that all test programs that use the ksft framework will benefit even if stdbuf is not present on the system. [ryan.roberts@arm.com: add setvbuf() to set buffering mode] Link: https://lkml.kernel.org/r/20230726070655.2713530-1-ryan.roberts@arm.com Link: https://lkml.kernel.org/r/20230724082522.1202616-1-ryan.roberts@arm.com Link: https://lkml.kernel.org/r/20230724082522.1202616-2-ryan.roberts@arm.com Signed-off-by: Ryan Roberts Reviewed-by: Mark Brown Cc: David Hildenbrand Cc: Florent Revest Cc: Jérôme Glisse Cc: John Hubbard Cc: Peter Xu Cc: Shuah Khan Signed-off-by: Andrew Morton