From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752628AbeDBOdc (ORCPT ); Mon, 2 Apr 2018 10:33:32 -0400 Received: from mail-io0-f193.google.com ([209.85.223.193]:45076 "EHLO mail-io0-f193.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752132AbeDBOdb (ORCPT ); Mon, 2 Apr 2018 10:33:31 -0400 X-Google-Smtp-Source: AIpwx49kioX2s6gefQPOkJg2bwDE883wR4n+spriDcpdNmm3z7PVPdhF0B3y3FGcvqFUNqZwu5dGng== Subject: Re: [BISECTED][REGRESSION] Hang while booting EeePC 900 To: Sitsofe Wheeler , Tejun Heo Cc: linux-kernel@vger.kernel.org, Asai Thambi SP , Stefan Haberland , Jan Hoeppner , Bart Van Assche References: From: Jens Axboe Message-ID: Date: Mon, 2 Apr 2018 08:33:28 -0600 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.0 MIME-Version: 1.0 In-Reply-To: Content-Type: text/plain; charset=utf-8 Content-Language: en-US Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On 4/1/18 8:35 AM, Sitsofe Wheeler wrote: > Hi, > > While trying to boot an EeePC 900 on the latest git mainline kernel a > hang is encountered while systemd is starting services but this did > not happen with 4.15. A bisection narrowed it down to the commit > 358f70da49d77c43f2ca11b5da584213b2add29c ("blk-mq: make > blk_abort_request() trigger timeout path"). Here's the bisection log: > > git bisect bad 358f70da49d77c43f2ca11b5da584213b2add29c > # first bad commit: [358f70da49d77c43f2ca11b5da584213b2add29c] blk-mq: > make blk_abort_request() trigger timeout path Are you using scsi-mq? Would probably also be handy to see a dmesg log from a 4.15 boot, and from a failed 4.16 boot. -- Jens Axboe