From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mout.gmx.net ([212.227.17.21]:57603 "EHLO mout.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750978AbeBSFew (ORCPT ); Mon, 19 Feb 2018 00:34:52 -0500 Message-ID: <1519018484.10531.29.camel@gmx.de> Subject: Re: [PATCH BUGFIX V3] block, bfq: add requeue-request hook From: Mike Galbraith To: Jens Axboe , Paolo Valente Cc: Oleksandr Natalenko , stable Date: Mon, 19 Feb 2018 06:34:44 +0100 In-Reply-To: <1518845613.11399.6.camel@gmx.de> References: <20180207211920.6343-1-paolo.valente@linaro.org> <1518197379.26824.31.camel@gmx.de> <6394471.U0O273vb9H@natalenko.name> <9E24F648-C93A-4CEA-A1B6-B041540CEAAE@linaro.org> <1518434553.13087.7.camel@gmx.de> <805e9d5af9aed3fbc2697fdb0ce51e88@natalenko.name> <1518498175.6944.48.camel@gmx.de> <816E0B1B-B2D9-4604-A8CB-1E32AFBF6C22@linaro.org> <1518504174.6944.71.camel@gmx.de> <1518504640.6944.73.camel@gmx.de> <1518532236.15792.25.camel@gmx.de> <1518587910.5647.14.camel@gmx.de> <1518591888.6752.12.camel@gmx.de> <1518592512.6752.14.camel@gmx.de> <07DA441B-C2E8-4F65-B674-11C87D2F084B@linaro.org> <0cdbafe7-fe13-51b4-4e86-e7453026508e@kernel.dk> <6A22B75D-B033-4EB0-8CDB-91A2E6755664@linaro.org> <06d0f749-511b-885b-d55f-922d99dcc24e@kernel.dk> <1518845448.11399.4.camel@gmx.de> <1518845613.11399.6.camel@gmx.de> Content-Type: text/plain; charset="ISO-8859-15" Mime-Version: 1.0 Content-Transfer-Encoding: 8BIT Sender: stable-owner@vger.kernel.org List-ID: FWIW, my box spent the weekend running a kbuild marathon with�a52a69ea reverted, has convinced me that it _is_ the source of the hang woes (directly or indirectly). �No outright stalls, no stall for way too long but then recover, nada, not the slightest hint of trouble. -Mike