From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752504AbeAXCym (ORCPT ); Tue, 23 Jan 2018 21:54:42 -0500 Received: from mail.kernel.org ([198.145.29.99]:58292 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752221AbeAXCyl (ORCPT ); Tue, 23 Jan 2018 21:54:41 -0500 DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org 2679A204EE Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=goodmis.org Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=rostedt@goodmis.org Date: Tue, 23 Jan 2018 21:54:38 -0500 From: Steven Rostedt To: Sergey Senozhatsky Cc: Tejun Heo , Rik van Riel , Peter Zijlstra , Ingo Molnar , linux-kernel@vger.kernel.org, kernel-team@fb.com, Sergey Senozhatsky , Petr Mladek Subject: Re: [PATCH] lockdep: Avoid triggering hardlockup from debug_show_all_locks() Message-ID: <20180123215438.0257fa3e@vmware.local.home> In-Reply-To: <20180124024955.GB651@jagdpanzerIV> References: <20180122220055.GB1771050@devbig577.frc2.facebook.com> <1516734237.31954.17.camel@fb.com> <20180123205706.GH1771050@devbig577.frc2.facebook.com> <20180123160054.325ff326@gandalf.local.home> <20180123211154.GI1771050@devbig577.frc2.facebook.com> <20180124024955.GB651@jagdpanzerIV> X-Mailer: Claws Mail 3.15.1 (GTK+ 2.24.31; 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 Wed, 24 Jan 2018 11:49:55 +0900 Sergey Senozhatsky wrote: > Another problem, and I mentioned it somewhere in another email, is that > upstream printk people don't receive enough [if any at all] feedback from > guys who face printk issues. That's why every time printk_kthread re-surfaces > the reaction is "this is not a real problem, no one is seeing printk issues > like these, you idiot!". It'd be great to have more "we need ABC, because of > XYZ, but printk crashes the system. Here is the backtrace, fix it" reports. > As of now, those things mostly are not reported, that's why people are not > convinced. Just my 5 cents. If you are seeing these issues, have whoever is reporting them to Cc LKML, and those of us that would care to listen. -- Steve