d56b699d76
Documentation: Fix typos
...
Fix typos in Documentation.
Signed-off-by: Bjorn Helgaas <bhelgaas@google.com >
Link: https://lore.kernel.org/r/20230814212822.193684-4-helgaas@kernel.org
Signed-off-by: Jonathan Corbet <corbet@lwn.net >
2023-08-18 11:29:03 -06:00
ccc319dcb4
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 >
2022-07-30 14:01:30 -04:00
10bde81c74
rv/monitor: Add the wip monitor
...
The wakeup in preemptive (wip) monitor verifies if the
wakeup events always take place with preemption disabled:
|
|
v
#==================#
H preemptive H <+
#==================# |
| |
| preempt_disable | preempt_enable
v |
sched_waking +------------------+ |
+--------------- | | |
| | non_preemptive | |
+--------------> | | -+
+------------------+
The wakeup event always takes place with preemption disabled because
of the scheduler synchronization. However, because the preempt_count
and its trace event are not atomic with regard to interrupts, some
inconsistencies might happen.
The documentation illustrates one of these cases.
Link: https://lkml.kernel.org/r/c98ca678df81115fddc04921b3c79720c836b18f.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 >
2022-07-30 14:01:30 -04:00
b6172b5185
Documentation/rv: Add deterministic automata instrumentation documentation
...
Add the da_monitor_instrumentation.rst. It describes the basics
of RV monitor instrumentation.
Link: https://lkml.kernel.org/r/0557d5c68e2fc252f2643c2cc5295a67e2b73277.1659052063.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 >
2022-07-30 14:01:29 -04:00
d57aff2479
Documentation/rv: Add deterministic automata monitor synthesis documentation
...
Add the da_monitor_synthesis.rst introduces some concepts behind the
Deterministic Automata (DA) monitor synthesis and interface.
Link: https://lkml.kernel.org/r/7873bdb7b2e5d2bc0b2eb6ca0b324af9a0ba27a0.1659052063.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 >
2022-07-30 14:01:29 -04:00
4041b9bbfb
Documentation/rv: Add deterministic automaton documentation
...
Add documentation about deterministic automaton and its possible
representations (formal, graphic, .dot and C).
Link: https://lkml.kernel.org/r/387edaed87630bd5eb37c4275045dfd229700aa6.1659052063.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 >
2022-07-30 14:01:29 -04:00
ff0aaf6712
Documentation/rv: Add a basic documentation
...
Add the runtime-verification.rst document, explaining the basics of RV
and how to use the interface.
Link: https://lkml.kernel.org/r/4be7d1a88ab1e2eb0767521e1ab52a149a154bc4.1659052063.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 >
2022-07-30 14:01:29 -04:00
