On Thu, 16 Jun 2022 10:44:55 +0200 Daniel Bristot de Oliveira <bristot@xxxxxxxxxx> wrote: > Sample reactor that panics the system when an exception is found. This > is useful both to capture a vmcore, or to fail-safe a critical system. > > Cc: Wim Van Sebroeck <wim@xxxxxxxxxxxxxxxxxx> > Cc: Guenter Roeck <linux@xxxxxxxxxxxx> > Cc: Jonathan Corbet <corbet@xxxxxxx> > Cc: Steven Rostedt <rostedt@xxxxxxxxxxx> > Cc: Ingo Molnar <mingo@xxxxxxxxxx> > Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx> > Cc: Peter Zijlstra <peterz@xxxxxxxxxxxxx> > Cc: Will Deacon <will@xxxxxxxxxx> > Cc: Catalin Marinas <catalin.marinas@xxxxxxx> > Cc: Marco Elver <elver@xxxxxxxxxx> > Cc: Dmitry Vyukov <dvyukov@xxxxxxxxxx> > Cc: "Paul E. McKenney" <paulmck@xxxxxxxxxx> > Cc: Shuah Khan <skhan@xxxxxxxxxxxxxxxxxxx> > Cc: Gabriele Paoloni <gpaoloni@xxxxxxxxxx> > Cc: Juri Lelli <juri.lelli@xxxxxxxxxx> > Cc: Clark Williams <williams@xxxxxxxxxx> > Cc: linux-doc@xxxxxxxxxxxxxxx > Cc: linux-kernel@xxxxxxxxxxxxxxx > Cc: linux-trace-devel@xxxxxxxxxxxxxxx > Signed-off-by: Daniel Bristot de Oliveira <bristot@xxxxxxxxxx> > --- > kernel/trace/rv/Kconfig | 8 ++++++ > kernel/trace/rv/Makefile | 1 + > kernel/trace/rv/reactor_panic.c | 44 +++++++++++++++++++++++++++++++++ > 3 files changed, 53 insertions(+) > create mode 100644 kernel/trace/rv/reactor_panic.c > > diff --git a/kernel/trace/rv/Kconfig b/kernel/trace/rv/Kconfig > index be8e3dab0a52..91a17b13a080 100644 > --- a/kernel/trace/rv/Kconfig > +++ b/kernel/trace/rv/Kconfig > @@ -60,4 +60,12 @@ config RV_REACT_PRINTK > Enables the printk reactor. The printk reactor emmits a printk() > message if an exception is found. > > +config RV_REACT_PANIC > + bool "Panic reactor" > + depends on RV_REACTORS > + default y if RV_REACTORS Just put default y if it already depends on RV_REACTORS. -- Steve > + help > + Enables the panic reactor. The panic reactor emmits a printk() > + message if an exception is found and panic()s the system. > + > endif # RV > diff --git a/kernel/trace/rv/Makefile b/kernel/trace/rv/Makefile
