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This kselftest next update for Linux 6.9-rc1 consists of:
-- livepatch restructuring to move the module out of lib to be
built as a out-of-tree modules during kselftest build. This
change makes it easier change, debug and rebuild the tests by
running make on the selftests/livepatch directory, which is not
currently possible since the modules on lib/livepatch are build
and installed using the main makefile modules target.
-- livepatch restructuring fixes for problems found by kernel test
robot. The change skips the test if kernel-devel isn't installed
(default value of KDIR), or if KDIR variable passed doesn't exists.
-- resctrl test restructuring and new non-contiguous CBMs CAT test
-- new ktap_helpers to print diagnostic messages, pass/fail tests
based on exit code, abort test, and finish the test.
-- a new test verify power supply properties.
-- a new ftrace to exercise function tracer across cpu hotplug.
-- timeout increase for mqueue test to allow the test to run on
i3.metal AWS instances.
-- minor spelling corrections in several tests.
-- missing gitignore files and changes to existing gitignore files.
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Merge tag 'linux_kselftest-next-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest
Pull kselftest update from Shuah Khan:
- livepatch restructuring to move the module out of lib to be built as
a out-of-tree modules during kselftest build. This makes it easier
change, debug and rebuild the tests by running make on the
selftests/livepatch directory, which is not currently possible since
the modules on lib/livepatch are build and installed using the main
makefile modules target.
- livepatch restructuring fixes for problems found by kernel test
robot. The change skips the test if kernel-devel isn't installed
(default value of KDIR), or if KDIR variable passed doesn't exists.
- resctrl test restructuring and new non-contiguous CBMs CAT test
- new ktap_helpers to print diagnostic messages, pass/fail tests based
on exit code, abort test, and finish the test.
- a new test verify power supply properties.
- a new ftrace to exercise function tracer across cpu hotplug.
- timeout increase for mqueue test to allow the test to run on i3.metal
AWS instances.
- minor spelling corrections in several tests.
- missing gitignore files and changes to existing gitignore files.
* tag 'linux_kselftest-next-6.9-rc1' of git://git.kernel.org/pub/scm/linux/kernel/git/shuah/linux-kselftest: (57 commits)
kselftest: Add basic test for probing the rust sample modules
selftests: lib.mk: Do not process TEST_GEN_MODS_DIR
selftests: livepatch: Avoid running the tests if kernel-devel is missing
selftests: livepatch: Add initial .gitignore
selftests/resctrl: Add non-contiguous CBMs CAT test
selftests/resctrl: Add resource_info_file_exists()
selftests/resctrl: Split validate_resctrl_feature_request()
selftests/resctrl: Add a helper for the non-contiguous test
selftests/resctrl: Add test groups and name L3 CAT test L3_CAT
selftests: sched: Fix spelling mistake "hiearchy" -> "hierarchy"
selftests/mqueue: Set timeout to 180 seconds
selftests/ftrace: Add test to exercize function tracer across cpu hotplug
selftest: ftrace: fix minor typo in log
selftests: thermal: intel: workload_hint: add missing gitignore
selftests: thermal: intel: power_floor: add missing gitignore
selftests: uevent: add missing gitignore
selftests: Add test to verify power supply properties
selftests: ktap_helpers: Add a helper to finish the test
selftests: ktap_helpers: Add a helper to abort the test
selftests: ktap_helpers: Add helper to pass/fail test based on exit code
...
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|---|---|---|
| .. | ||
| test_modules | ||
| .gitignore | ||
| config | ||
| functions.sh | ||
| Makefile | ||
| README | ||
| settings | ||
| test_klp-call_getpid.c | ||
| test-callbacks.sh | ||
| test-ftrace.sh | ||
| test-livepatch.sh | ||
| test-shadow-vars.sh | ||
| test-state.sh | ||
| test-syscall.sh | ||
| test-sysfs.sh | ||
==================== Livepatch Self Tests ==================== This is a small set of sanity tests for the kernel livepatching. The test suite loads and unloads several test kernel modules to verify livepatch behavior. Debug information is logged to the kernel's message buffer and parsed for expected messages. (Note: the tests will compare the message buffer for only the duration of each individual test.) Config ------ Set CONFIG_LIVEPATCH=y option and it's prerequisites. Building the tests ------------------ To only build the tests without running them, run: % make -C tools/testing/selftests/livepatch The command above will compile all test modules and test programs, making them ready to be packaged if so desired. Running the tests ----------------- Test kernel modules are built before running the livepatch selftests. The modules are located under test_modules directory, and are built as out-of-tree modules. This is specially useful since the same sources can be built and tested on systems with different kABI, ensuring they the tests are backwards compatible. The modules will be loaded by the test scripts using insmod. To run the livepatch selftests, from the top of the kernel source tree: % make -C tools/testing/selftests TARGETS=livepatch run_tests or % make kselftest TARGETS=livepatch Adding tests ------------ See the common functions.sh file for the existing collection of utility functions, most importantly setup_config(), start_test() and check_result(). The latter function greps the kernel's ring buffer for "livepatch:" and "test_klp" strings, so tests be sure to include one of those strings for result comparison. Other utility functions include general module loading and livepatch loading helpers (waiting for patch transitions, sysfs entries, etc.)