Centos-kernel-stream-9/Documentation/trace/rv
Alessandro Carminati de5dc20244 rv/monitor: Add the wwnr monitor
Bugzilla: https://bugzilla.redhat.com/2129758

commit ccc319dcb450d57b7befe924453d06804d83ba73
From: Daniel Bristot de Oliveira <bristot@kernel.org>
Date: Fri, 29 Jul 2022 11:38:53 +0200

    rv/monitor: Add the wwnr monitor

    Per task wakeup while not running (wwnr) monitor.

    This model is broken, the reason is that a task can be running in the
    processor without being set as RUNNABLE. Think about a task about to
    sleep:

    1:      set_current_state(TASK_UNINTERRUPTIBLE);
    2:      schedule();

    And then imagine an IRQ happening in between the lines one and two,
    waking the task up. BOOM, the wakeup will happen while the task is
    running.

    Q: Why do we need this model, so?
    A: To test the reactors.

    Link: https://lkml.kernel.org/r/473c0fc39967250fdebcff8b620311c11dccad30.1659052063.git.bristot@kernel.org

    Cc: Wim Van Sebroeck <wim@linux-watchdog.org>
    Cc: Guenter Roeck <linux@roeck-us.net>
    Cc: Jonathan Corbet <corbet@lwn.net>
    Cc: Ingo Molnar <mingo@redhat.com>
    Cc: Thomas Gleixner <tglx@linutronix.de>
    Cc: Peter Zijlstra <peterz@infradead.org>
    Cc: Will Deacon <will@kernel.org>
    Cc: Catalin Marinas <catalin.marinas@arm.com>
    Cc: Marco Elver <elver@google.com>
    Cc: Dmitry Vyukov <dvyukov@google.com>
    Cc: "Paul E. McKenney" <paulmck@kernel.org>
    Cc: Shuah Khan <skhan@linuxfoundation.org>
    Cc: Gabriele Paoloni <gpaoloni@redhat.com>
    Cc: Juri Lelli <juri.lelli@redhat.com>
    Cc: Clark Williams <williams@redhat.com>
    Cc: Tao Zhou <tao.zhou@linux.dev>
    Cc: Randy Dunlap <rdunlap@infradead.org>
    Cc: linux-doc@vger.kernel.org
    Cc: linux-kernel@vger.kernel.org
    Cc: linux-trace-devel@vger.kernel.org
    Signed-off-by: Daniel Bristot de Oliveira <bristot@kernel.org>
    Signed-off-by: Steven Rostedt (Google) <rostedt@goodmis.org>

Signed-off-by: Alessandro Carminati <acarmina@redhat.com>
2022-11-14 15:11:32 +01:00
..
da_monitor_instrumentation.rst Documentation/rv: Add deterministic automata instrumentation documentation 2022-11-14 15:11:32 +01:00
da_monitor_synthesis.rst Documentation/rv: Add deterministic automata monitor synthesis documentation 2022-11-14 15:11:32 +01:00
deterministic_automata.rst
index.rst rv/monitor: Add the wwnr monitor 2022-11-14 15:11:32 +01:00
monitor_wip.rst rv/monitor: Add the wip monitor 2022-11-14 15:11:32 +01:00
monitor_wwnr.rst rv/monitor: Add the wwnr monitor 2022-11-14 15:11:32 +01:00
runtime-verification.rst