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 Received: from kanga.kvack.org (kanga.kvack.org [205.233.56.17]) by smtp.lore.kernel.org (Postfix) with ESMTP id 069E8C433F5 for ; Sat, 19 Mar 2022 22:50:08 +0000 (UTC) Received: by kanga.kvack.org (Postfix) id 23BC98D0002; Sat, 19 Mar 2022 18:50:08 -0400 (EDT) Received: by kanga.kvack.org (Postfix, from userid 40) id 1EBA38D0001; Sat, 19 Mar 2022 18:50:08 -0400 (EDT) X-Delivered-To: int-list-linux-mm@kvack.org Received: by kanga.kvack.org (Postfix, from userid 63042) id 0DACE8D0002; Sat, 19 Mar 2022 18:50:08 -0400 (EDT) X-Delivered-To: linux-mm@kvack.org Received: from forelay.hostedemail.com (smtprelay0096.hostedemail.com [216.40.44.96]) by kanga.kvack.org (Postfix) with ESMTP id F30D28D0001 for ; Sat, 19 Mar 2022 18:50:07 -0400 (EDT) Received: from smtpin28.hostedemail.com (10.5.19.251.rfc1918.com [10.5.19.251]) by forelay02.hostedemail.com (Postfix) with ESMTP id 8A545A326D for ; Sat, 19 Mar 2022 22:50:07 +0000 (UTC) X-FDA: 79262630454.28.44D0D30 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by imf17.hostedemail.com (Postfix) with ESMTP id 18D8740017 for ; Sat, 19 Mar 2022 22:50:06 +0000 (UTC) Received: from cwcc.thunk.org (pool-108-7-220-252.bstnma.fios.verizon.net [108.7.220.252]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 22JMn9Ad026583 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sat, 19 Mar 2022 18:49:10 -0400 Received: by cwcc.thunk.org (Postfix, from userid 15806) id 6AFEB15C0038; Sat, 19 Mar 2022 18:49:09 -0400 (EDT) Date: Sat, 19 Mar 2022 18:49:09 -0400 From: "Theodore Ts'o" To: Byungchul Park Cc: torvalds@linux-foundation.org, damien.lemoal@opensource.wdc.com, linux-ide@vger.kernel.org, adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, mingo@redhat.com, linux-kernel@vger.kernel.org, peterz@infradead.org, will@kernel.org, tglx@linutronix.de, rostedt@goodmis.org, joel@joelfernandes.org, sashal@kernel.org, daniel.vetter@ffwll.ch, chris@chris-wilson.co.uk, duyuyang@gmail.com, johannes.berg@intel.com, tj@kernel.org, willy@infradead.org, david@fromorbit.com, amir73il@gmail.com, bfields@fieldses.org, gregkh@linuxfoundation.org, kernel-team@lge.com, linux-mm@kvack.org, akpm@linux-foundation.org, mhocko@kernel.org, minchan@kernel.org, hannes@cmpxchg.org, vdavydov.dev@gmail.com, sj@kernel.org, jglisse@redhat.com, dennis@kernel.org, cl@linux.com, penberg@kernel.org, rientjes@google.com, vbabka@suse.cz, ngupta@vflare.org, linux-block@vger.kernel.org, paolo.valente@linaro.org, josef@toxicpanda.com, linux-fsdevel@vger.kernel.org, viro@zeniv.linux.org.uk, jack@suse.cz, jack@suse.com, jlayton@kernel.org, dan.j.williams@intel.com, hch@infradead.org, djwong@kernel.org, dri-devel@lists.freedesktop.org, airlied@linux.ie, rodrigosiqueiramelo@gmail.com, melissa.srw@gmail.com, hamohammed.sa@gmail.com Subject: Re: [PATCH RFC v5 00/21] DEPT(Dependency Tracker) Message-ID: References: <1647397593-16747-1-git-send-email-byungchul.park@lge.com> <20220318074945.GA17484@X58A-UD3R> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20220318074945.GA17484@X58A-UD3R> X-Stat-Signature: bq9ax1dyr6er45ufnuhkpiq3sbj7gjiw Authentication-Results: imf17.hostedemail.com; dkim=none; dmarc=fail reason="No valid SPF, No valid DKIM" header.from=mit.edu (policy=none); spf=none (imf17.hostedemail.com: domain of tytso@mit.edu has no SPF policy when checking 18.9.28.11) smtp.mailfrom=tytso@mit.edu X-Rspam-User: X-Rspamd-Server: rspam08 X-Rspamd-Queue-Id: 18D8740017 X-HE-Tag: 1647730206-530979 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000000, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Fri, Mar 18, 2022 at 04:49:45PM +0900, Byungchul Park wrote: > > I guess it was becasue of the commit b1fca27d384e8("kernel debug: > support resetting WARN*_ONCE"). Your script seems to reset WARN*_ONCE > repeatedly. I wasn't aware this was being done, but your guess was correct. The WARN_ONCE state is getting cleared between each test in xfstests, with the rationale (which IMO is quite reasonable) why this done in the xfstests commit descrition: commit c67ea2347454aebbe8eb6e825e9314d099b683da Author: Lukas Czerner Date: Wed Jul 15 13:42:19 2020 +0200 check: clear WARN_ONCE state before each test clear WARN_ONCE state before each test to allow a potential problem to be reported for each test [Eryu: replace "/sys/kernel/debug" with $DEBUGFS_MNT ] Signed-off-by: Lukas Czerner Reviewed-by: Zorro Lang Signed-off-by: Eryu Guan Cheers, - Ted