From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 8F291CA9 for ; Wed, 5 Jul 2017 18:17:08 +0000 (UTC) Received: from mail-it0-f66.google.com (mail-it0-f66.google.com [209.85.214.66]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id 80BD51CE for ; Wed, 5 Jul 2017 18:17:07 +0000 (UTC) Received: by mail-it0-f66.google.com with SMTP id k3so14353366ita.3 for ; Wed, 05 Jul 2017 11:17:07 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <20170705103658.226099c6@gandalf.local.home> References: <576cea07-770a-4864-c3f5-0832ff211e94@leemhuis.info> <20170703123025.7479702e@gandalf.local.home> <20170705084528.67499f8c@gandalf.local.home> <4080ecc7-1aa8-2940-f230-1b79d656cdb4@redhat.com> <20170705092757.63dc2328@gandalf.local.home> <20170705140607.GA30187@kroah.com> <20170705143341.oees22k2snhtmkxo@sirena.org.uk> <20170705103658.226099c6@gandalf.local.home> From: Daniel Vetter Date: Wed, 5 Jul 2017 20:17:05 +0200 Message-ID: To: Steven Rostedt Content-Type: text/plain; charset="UTF-8" Cc: "ksummit-discuss@lists.linuxfoundation.org" , Carlos O'Donell , "open list:ABI/API" , Shuah Khan , Thorsten Leemhuis Subject: Re: [Ksummit-discuss] [MAINTAINERS SUMMIT] & [TECH TOPIC] Improve regression tracking List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , On Wed, Jul 5, 2017 at 4:36 PM, Steven Rostedt wrote: > On Wed, 5 Jul 2017 15:33:41 +0100 > Mark Brown wrote: >> On Wed, Jul 05, 2017 at 04:06:07PM +0200, Greg KH wrote: >> > I don't mean to poo-poo the idea, but please realize that around 75% of >> > the kernel is hardware/arch support, so that means that 75% of the >> > changes/fixes deal with hardware things (yes, change is in direct >> > correlation to size of the codebase in the tree, strange but true). >> >> Then add in all the fixes for concurrency/locking issues and so on >> that're hard to reliably reproduce as well... > > All tests should be run with lockdep enabled ;-) Which a surprising > few developers appear to do :-p We're slowly working towards running the i915 testsuite with kasan enabled as the next level of evil. It's ... interesting, to say the least. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch From mboxrd@z Thu Jan 1 00:00:00 1970 From: Daniel Vetter Subject: Re: [Ksummit-discuss] [MAINTAINERS SUMMIT] & [TECH TOPIC] Improve regression tracking Date: Wed, 5 Jul 2017 20:17:05 +0200 Message-ID: References: <576cea07-770a-4864-c3f5-0832ff211e94@leemhuis.info> <20170703123025.7479702e@gandalf.local.home> <20170705084528.67499f8c@gandalf.local.home> <4080ecc7-1aa8-2940-f230-1b79d656cdb4@redhat.com> <20170705092757.63dc2328@gandalf.local.home> <20170705140607.GA30187@kroah.com> <20170705143341.oees22k2snhtmkxo@sirena.org.uk> <20170705103658.226099c6@gandalf.local.home> Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Return-path: In-Reply-To: <20170705103658.226099c6-f9ZlEuEWxVcJvu8Pb33WZ0EMvNT87kid@public.gmane.org> Sender: linux-api-owner-u79uwXL29TY76Z2rM5mHXA@public.gmane.org To: Steven Rostedt Cc: Mark Brown , "ksummit-discuss-cunTk1MwBs98uUxBSJOaYoYkZiVZrdSR2LY78lusg7I@public.gmane.org" , Carlos O'Donell , Shuah Khan , Thorsten Leemhuis , "open list:ABI/API" List-Id: linux-api@vger.kernel.org On Wed, Jul 5, 2017 at 4:36 PM, Steven Rostedt wrote: > On Wed, 5 Jul 2017 15:33:41 +0100 > Mark Brown wrote: >> On Wed, Jul 05, 2017 at 04:06:07PM +0200, Greg KH wrote: >> > I don't mean to poo-poo the idea, but please realize that around 75% of >> > the kernel is hardware/arch support, so that means that 75% of the >> > changes/fixes deal with hardware things (yes, change is in direct >> > correlation to size of the codebase in the tree, strange but true). >> >> Then add in all the fixes for concurrency/locking issues and so on >> that're hard to reliably reproduce as well... > > All tests should be run with lockdep enabled ;-) Which a surprising > few developers appear to do :-p We're slowly working towards running the i915 testsuite with kasan enabled as the next level of evil. It's ... interesting, to say the least. -Daniel -- Daniel Vetter Software Engineer, Intel Corporation +41 (0) 79 365 57 48 - http://blog.ffwll.ch