linux-kernel - [RFC PATCH 0/2] sysctl: Panic on RCU stall and schedule while atomic

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Date:	Tue, 31 May 2016 16:07:31 -0300
From:	Daniel Bristot de Oliveira <bristot@...hat.com>
To:	linux-kernel@...r.kernel.org
Cc:	Jonathan Corbet <corbet@....net>,
	"Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>,
	Josh Triplett <josh@...htriplett.org>,
	Steven Rostedt <rostedt@...dmis.org>,
	Mathieu Desnoyers <mathieu.desnoyers@...icios.com>,
	Lai Jiangshan <jiangshanlai@...il.com>,
	Ingo Molnar <mingo@...hat.com>,
	Peter Zijlstra <peterz@...radead.org>,
	Arnaldo Carvalho de Melo <acme@...nel.org>,
	"Luis Claudio R. Goncalves" <lgoncalv@...hat.com>
Subject: [RFC PATCH 0/2] sysctl: Panic on RCU stall and schedule while atomic

This patch series implements two kernel.panic_on_* like sysctl:

kernel.panic_on_rcu_stall:
	panic() on RCU Stall detection.

kernel.panic_on_sched_in_atomic:
	panic() on schedule while atomic detection.

These sysctls are useful to capture a vmcore when is not possible
to recompile the kernel to include the panic() call. For instance
when supporting enterprise users.

Daniel Bristot de Oliveira (2):
  rcu: sysctl: Panic on RCU Stall
  sched: sysctl: Panic on scheduling while atomic

 Documentation/sysctl/kernel.txt | 25 +++++++++++++++++++++++++
 include/linux/kernel.h          |  2 ++
 kernel/rcu/tree.c               |  8 ++++++++
 kernel/sched/core.c             |  7 +++++++
 kernel/sysctl.c                 | 20 ++++++++++++++++++++
 5 files changed, 62 insertions(+)

-- 
2.5.5