From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752105AbaAOAKB (ORCPT ); Tue, 14 Jan 2014 19:10:01 -0500 Received: from mail.linuxfoundation.org ([140.211.169.12]:35060 "EHLO mail.linuxfoundation.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751472AbaAOAJ7 (ORCPT ); Tue, 14 Jan 2014 19:09:59 -0500 Date: Tue, 14 Jan 2014 16:09:57 -0800 From: Andrew Morton To: atomlin@redhat.com Cc: linux-kernel@vger.kernel.org, mingo@kernel.org, oleg@redhat.com, riel@redhat.com Subject: Re: [RFC PATCH v2 0/2] hung_task: Display every hung task warning Message-Id: <20140114160957.949dc28b1d766598792c2ba8@linux-foundation.org> In-Reply-To: <1389742918-32598-1-git-send-email-atomlin@redhat.com> References: <1389742918-32598-1-git-send-email-atomlin@redhat.com> X-Mailer: Sylpheed 3.2.0beta5 (GTK+ 2.24.10; x86_64-pc-linux-gnu) Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Tue, 14 Jan 2014 23:41:56 +0000 atomlin@redhat.com wrote: > 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. The changelog provides no reason why you think this change should be made. This is awkward, because it means that nobody has any reason to apply the patch!