From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752199AbaANXmn (ORCPT ); Tue, 14 Jan 2014 18:42:43 -0500 Received: from mx1.redhat.com ([209.132.183.28]:20462 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751599AbaANXmk (ORCPT ); Tue, 14 Jan 2014 18:42:40 -0500 From: atomlin@redhat.com To: linux-kernel@vger.kernel.org Cc: mingo@kernel.org, oleg@redhat.com, riel@redhat.com, akpm@linux-foundation.org Subject: [RFC PATCH v2 0/2] hung_task: Display every hung task warning Date: Tue, 14 Jan 2014 23:41:56 +0000 Message-Id: <1389742918-32598-1-git-send-email-atomlin@redhat.com> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: Aaron Tomlin 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