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[157.230.128.187]) by smtp.gmail.com with ESMTPSA id cu9sm5249668pjb.28.2020.06.24.05.08.30 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 24 Jun 2020 05:08:30 -0700 (PDT) Received: by 42.do-not-panic.com (Postfix, from userid 1000) id ADB9940430; Wed, 24 Jun 2020 12:08:29 +0000 (UTC) Date: Wed, 24 Jun 2020 12:08:29 +0000 From: Luis Chamberlain To: Johannes Thumshirn Cc: Bart Van Assche , "axboe@kernel.dk" , "viro@zeniv.linux.org.uk" , "gregkh@linuxfoundation.org" , "rostedt@goodmis.org" , "mingo@redhat.com" , "jack@suse.cz" , "ming.lei@redhat.com" , "nstange@suse.de" , "akpm@linux-foundation.org" , "mhocko@suse.com" , "yukuai3@huawei.com" , "martin.petersen@oracle.com" , "jejb@linux.ibm.com" , "linux-block@vger.kernel.org" , "linux-fsdevel@vger.kernel.org" , "linux-mm@kvack.org" , "linux-kernel@vger.kernel.org" , Christoph Hellwig Subject: Re: [PATCH v7 5/8] loop: be paranoid on exit and prevent new additions / removals Message-ID: <20200624120829.GE4332@42.do-not-panic.com> References: <20200619204730.26124-1-mcgrof@kernel.org> <20200619204730.26124-6-mcgrof@kernel.org> <7e76d892-b5fd-18ec-c96e-cf4537379eba@acm.org> <20200622122742.GU11244@42.do-not-panic.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Rspamd-Queue-Id: EAD5516225 X-Spamd-Result: default: False [0.00 / 100.00] X-Rspamd-Server: rspam05 X-Bogosity: Ham, tests=bogofilter, spamicity=0.000009, version=1.2.4 Sender: owner-linux-mm@kvack.org Precedence: bulk X-Loop: owner-majordomo@kvack.org List-ID: On Tue, Jun 23, 2020 at 05:05:01PM +0000, Johannes Thumshirn wrote: > On 22/06/2020 14:27, Luis Chamberlain wrote: > [...]> If you run run_0004.sh from break-blktrace [0]. Even with all my patches > > merged we still run into this. And so the bug lies within the block > > layer or on the driver. I haven't been able to find the issue yet. > > > > [0] https://github.com/mcgrof/break-blktrace > > Would it be a good idea to merge this into blktests? Maybe start a blktrace > section for it, which could host other regression test for blktrace. > > Thoughts? Absolutely! That is the goal as well. Luis