linux-kernel - [RFC PATCH v2 0/2] hung_task: Display every hung task warning

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Date:	Tue, 14 Jan 2014 23:41:56 +0000
From:	atomlin@...hat.com
To:	linux-kernel@...r.kernel.org
Cc:	mingo@...nel.org, oleg@...hat.com, riel@...hat.com,
	akpm@...ux-foundation.org
Subject: [RFC PATCH v2 0/2] hung_task: Display every hung task warning

From: Aaron Tomlin <atomlin@...hat.com>

The khungtaskd thread limits how many hung task warnings it displays
at a time, when a timeout occurs. This patch allows that limit to be
set to "unlimited", by setting hung_task_warnings to -1, which will
cause khungtaskd to display information about all hung tasks.

While ULONG_MAX is practically "inf", this patch takes it one step
further. Note: The maximum is now 2^31-1 (INT_MAX) which should
hopefully be sufficient.

Rebased against v3.13-rc8.

Aaron Tomlin (2):
  sysctl: Make neg_one a standard constraint
  hung_task: Display every hung task warning

 include/linux/sched/sysctl.h | 2 +-
 kernel/hung_task.c           | 9 +++++----
 kernel/sysctl.c              | 6 ++++--
 3 files changed, 10 insertions(+), 7 deletions(-)

-- 
1.8.4.2

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