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[209.132.180.67]) by mx.google.com with ESMTP id bj5-v6si26067741plb.67.2018.05.09.11.32.16; Wed, 09 May 2018 11:32:31 -0700 (PDT) Received-SPF: pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) client-ip=209.132.180.67; Authentication-Results: mx.google.com; spf=pass (google.com: best guess record for domain of linux-kernel-owner@vger.kernel.org designates 209.132.180.67 as permitted sender) smtp.mailfrom=linux-kernel-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S935566AbeEISb5 (ORCPT + 99 others); Wed, 9 May 2018 14:31:57 -0400 Received: from mout.gmx.net ([212.227.15.15]:58747 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S935545AbeEISby (ORCPT ); Wed, 9 May 2018 14:31:54 -0400 Received: from homer.simpson.net ([185.191.219.118]) by mail.gmx.com (mrgmx003 [212.227.17.190]) with ESMTPSA (Nemesis) id 0MJjvw-1fHZo13t5A-0017ob; Wed, 09 May 2018 20:31:50 +0200 Message-ID: <1525890708.11382.1.camel@gmx.de> Subject: Re: bug in tag handling in blk-mq? From: Mike Galbraith To: Jens Axboe , Paolo Valente Cc: Christoph Hellwig , linux-block , Ulf Hansson , LKML , Linus Walleij , Oleksandr Natalenko Date: Wed, 09 May 2018 20:31:48 +0200 In-Reply-To: <1e51eb57-6d9b-a53c-9cd6-2adfc86b21b5@kernel.dk> References: <999DF2B3-4EE8-4BDF-89C5-EB0C2D8BF69E@linaro.org> <7760d23b-7a4c-a645-1c7a-da7569bb44dc@kernel.dk> <84145CD7-B917-4B32-8A5C-310C1910DB71@linaro.org> <1525755090.24338.1.camel@gmx.de> <1525768632.5208.4.camel@gmx.de> <1525797766.5204.2.camel@gmx.de> <3692ce7d-a767-72e6-65ae-6178b6c2e7d8@kernel.dk> <57952405-bdeb-f4e4-1aef-a7c0a8a68674@kernel.dk> <1525839089.15732.1.camel@gmx.de> <1525885030.15732.6.camel@gmx.de> <1e51eb57-6d9b-a53c-9cd6-2adfc86b21b5@kernel.dk> Content-Type: text/plain; charset="ISO-8859-15" X-Mailer: Evolution 3.22.6 Mime-Version: 1.0 Content-Transfer-Encoding: 7bit X-Provags-ID: V03:K1:FY3CyKR7HrlKiGoJ02IipwjBvaruK/6rrh3na0ctYlhvlhCqHYU HBuMF/5zMMJjeuhJfd5JTvdxfTth6xf/r8O2Emvs8uYPQEhF6FSRlKZ6vlAwYtk7mshdCnz wk4pT8Drt+NkR2MhTp5CXQEBJROmzF8iN1btAO/8ByU35m5xUWxUCkZs3kkzkpPQGX0/H33 H+d64Q1HhLCRmEX905dHw== X-UI-Out-Filterresults: notjunk:1;V01:K0:5IPBhLXSNfs=:+RVdiYAh0AfVhLkG5AFZCK kFefRlHGNWfazyUVp0svvT5FyqETXVdWhC0t3xxBu8JBLzKGrE0S6KS+b5oI95hWaJQs943+W EbBZWPTFdyTTMn2IrkAMRMokj0cLdnfUUqdIgXsnlIM8icYgePSe3NzeTzkEIqzLb+cQugz8z bATbvTxPgaVJ2l4LzyMjaS2ev8sY8zTIkg9Lj9nqG5jYzuK6wBVbi5MqdSFYq5d84anMXj3wt KxkCMtYM6hwQaU97uaWhXwK8B8F91hhViA22Txe/EomASbZq9mAgPhjv38m1zYTpm2hbhKmFV aYzF87OiO2qR+Ecmog5TaEm6RMhFiiN/1Fm/BQtWlZCtJ3H3Hl0JpxTOQPzSGyXJLjS4tV8lc SjJpkirPum5dceuZUZLUbBBIjCZwmjXVH15R7pTw7d8fFCOYb6M91RXyZ+yB4tBDHvRUFHsoe liQbKQyc3qYZRMw2ISAIVRBV7OOPlkJWkCi56Y5VwjAAzPcvWGuFyF7DgtLVz5qo0VJvD17JL lX5PkyZPo2jgErCPxcxxUE3Vgu0c86lDqDJ+t2+B5/UTe/IDr3/WTkIsObiNuyQUERzvPt2k6 dv0/sW483+jvEldGD6RgN2QhrIeBMj/ofrDcV5TbfKW2mvMpCuJPtNYON0J4BhDmh+Ymq+c2J zO0rjb7Ea+dTI4x85NEbVaoo4pAmIFC5UhhdXYM68eP9QP0XG/xz9B5dZxoLJ8F2fYou8btW6 TvHg4vEoV0ZctZW1pI5DWK4PuPOIbagkbF8QDpZRX7TustNygd8WD7/dKg+1r/EZw1yBpthrm yP2+PcF Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Wed, 2018-05-09 at 11:01 -0600, Jens Axboe wrote: > On 5/9/18 10:57 AM, Mike Galbraith wrote: > > >>> Confirmed. Impressive high speed bug stomping. > >> > >> Well, that's good news. Can I get you to try this patch? > > > > Sure thing. The original hang (minus provocation patch) being > > annoyingly non-deterministic, this will (hopefully) take a while. > > You can verify with the provocation patch as well first, if you wish. Done, box still seems fine. -Mike