On Fri, 2025-09-26 at 11:46 +0200, Gabriele Monaco wrote:
Add a series of tests to validate the RV tracefs API and basic functionality.
- available monitors:
Check that all monitors (from the monitors folder) appear as available and have a description. Works with nested monitors.
- enable/disable:
Enable and disable all monitors and validate both the enabled file and the enabled_monitors. Check that enabling container monitors enables all nested monitors.
- reactors:
Set all reactors and validate the setting, also for nested monitors.
- wwnr with printk:
wwnr is broken on purpose, run it with a load and check that the printk reactor works. Also validate disabling reacting_on or monitoring_on prevents reactions.
These tests use the ftracetest suite. The first patch of the series adapts ftracetest to make this possible.
The enable/disable test cannot pass on upstream without the application of the fix in [1].
Steve, Nam, would you have time to have a look at this series. If possible, I'd like to get this minimal selftest to next together with Nam's (urgent) patches.
Thanks, Gabriele
[1] - https://lore.kernel.org/lkml/87tt0t4u19.fsf@yellow.woof
To: Steven Rostedt rostedt@goodmis.org To: Nam Cao namcao@linutronix.de Cc: Masami Hiramatsu mhiramat@kernel.org Cc: John Kacur jkacur@redhat.com Cc: Waylon Cude wcude@redhat.com Cc: linux-trace-kernel@vger.kernel.org Cc: linux-kselftest@vger.kernel.org
Gabriele Monaco (2): selftest/ftrace: Generalise ftracetest to use with RV selftests/verification: Add initial RV tests
MAINTAINERS | 1 + tools/testing/selftests/ftrace/ftracetest | 34 ++++++--- .../ftrace/test.d/00basic/mount_options.tc | 2 +- .../testing/selftests/ftrace/test.d/functions | 6 +- .../testing/selftests/verification/.gitignore | 2 + tools/testing/selftests/verification/Makefile | 8 ++ tools/testing/selftests/verification/config | 1 + tools/testing/selftests/verification/settings | 1 + .../selftests/verification/test.d/functions | 39 ++++++++++ .../test.d/rv_monitor_enable_disable.tc | 75 +++++++++++++++++++ .../verification/test.d/rv_monitor_reactor.tc | 68 +++++++++++++++++ .../test.d/rv_monitors_available.tc | 18 +++++ .../verification/test.d/rv_wwnr_printk.tc | 29 +++++++ .../verification/verificationtest-ktap | 8 ++ 14 files changed, 278 insertions(+), 14 deletions(-) create mode 100644 tools/testing/selftests/verification/.gitignore create mode 100644 tools/testing/selftests/verification/Makefile create mode 100644 tools/testing/selftests/verification/config create mode 100644 tools/testing/selftests/verification/settings create mode 100644 tools/testing/selftests/verification/test.d/functions create mode 100644 tools/testing/selftests/verification/test.d/rv_monitor_enable_disable.tc create mode 100644 tools/testing/selftests/verification/test.d/rv_monitor_reactor.tc create mode 100644 tools/testing/selftests/verification/test.d/rv_monitors_available.tc create mode 100644 tools/testing/selftests/verification/test.d/rv_wwnr_printk.tc create mode 100644 tools/testing/selftests/verification/verificationtest-ktap
base-commit: cec1e6e5d1ab33403b809f79cd20d6aff124ccfe