From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-2.4 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=unavailable autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 0CDAFC04AB1 for ; Sat, 11 May 2019 17:35:51 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id E03342173B for ; Sat, 11 May 2019 17:35:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726272AbfEKRfp (ORCPT ); Sat, 11 May 2019 13:35:45 -0400 Received: from outgoing-auth-1.mit.edu ([18.9.28.11]:50198 "EHLO outgoing.mit.edu" rhost-flags-OK-OK-OK-FAIL) by vger.kernel.org with ESMTP id S1725879AbfEKRfp (ORCPT ); Sat, 11 May 2019 13:35:45 -0400 Received: from callcc.thunk.org (rrcs-67-53-55-100.west.biz.rr.com [67.53.55.100]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id x4BHXkiw001051 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 11 May 2019 13:33:50 -0400 Received: by callcc.thunk.org (Postfix, from userid 15806) id DFD64420024; Sat, 11 May 2019 13:33:44 -0400 (EDT) Date: Sat, 11 May 2019 13:33:44 -0400 From: "Theodore Ts'o" To: Frank Rowand Cc: Tim.Bird@sony.com, knut.omang@oracle.com, gregkh@linuxfoundation.org, brendanhiggins@google.com, keescook@google.com, kieran.bingham@ideasonboard.com, mcgrof@kernel.org, robh@kernel.org, sboyd@kernel.org, shuah@kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, kunit-dev@googlegroups.com, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, linux-um@lists.infradead.org, Alexander.Levin@microsoft.com, amir73il@gmail.com, dan.carpenter@oracle.com, dan.j.williams@intel.com, daniel@ffwll.ch, jdike@addtoit.com, joel@jms.id.au, julia.lawall@lip6.fr, khilman@baylibre.com, logang@deltatee.com, mpe@ellerman.id.au, pmladek@suse.com, richard@nod.at, rientjes@google.com, rostedt@goodmis.org, wfg@linux.intel.com Subject: Re: [PATCH v2 00/17] kunit: introduce KUnit, the Linux kernel unit testing framework Message-ID: <20190511173344.GA8507@mit.edu> Mail-Followup-To: Theodore Ts'o , Frank Rowand , Tim.Bird@sony.com, knut.omang@oracle.com, gregkh@linuxfoundation.org, brendanhiggins@google.com, keescook@google.com, kieran.bingham@ideasonboard.com, mcgrof@kernel.org, robh@kernel.org, sboyd@kernel.org, shuah@kernel.org, devicetree@vger.kernel.org, dri-devel@lists.freedesktop.org, kunit-dev@googlegroups.com, linux-doc@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kbuild@vger.kernel.org, linux-kernel@vger.kernel.org, linux-kselftest@vger.kernel.org, linux-nvdimm@lists.01.org, linux-um@lists.infradead.org, Alexander.Levin@microsoft.com, amir73il@gmail.com, dan.carpenter@oracle.com, dan.j.williams@intel.com, daniel@ffwll.ch, jdike@addtoit.com, joel@jms.id.au, julia.lawall@lip6.fr, khilman@baylibre.com, logang@deltatee.com, mpe@ellerman.id.au, pmladek@suse.com, richard@nod.at, rientjes@google.com, rostedt@goodmis.org, wfg@linux.intel.com References: <20190509015856.GB7031@mit.edu> <580e092f-fa4e-eedc-9e9a-a57dd085f0a6@gmail.com> <20190509032017.GA29703@mit.edu> <7fd35df81c06f6eb319223a22e7b93f29926edb9.camel@oracle.com> <20190509133551.GD29703@mit.edu> <875c546d-9713-bb59-47e4-77a1d2c69a6d@gmail.com> <20190509214233.GA20877@mit.edu> <80c72e64-2665-bd51-f78c-97f50f9a53ba@gmail.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <80c72e64-2665-bd51-f78c-97f50f9a53ba@gmail.com> User-Agent: Mutt/1.10.1 (2018-07-13) Sender: linux-fsdevel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Fri, May 10, 2019 at 02:12:40PM -0700, Frank Rowand wrote: > However, the reply is incorrect. Kselftest in-kernel tests (which > is the context here) can be configured as built in instead of as > a module, and built in a UML kernel. The UML kernel can boot, > running the in-kernel tests before UML attempts to invoke the > init process. Um, Citation needed? I don't see any evidence for this in the kselftest documentation, nor do I see any evidence of this in the kselftest Makefiles. There exists test modules in the kernel that run before the init scripts run --- but that's not strictly speaking part of kselftests, and do not have any kind of infrastructure. As noted, the kselftests_harness header file fundamentally assumes that you are running test code in userspace. - Ted