From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S1753508AbdBJQsJ convert rfc822-to-8bit (ORCPT <rfc822;w@1wt.eu>);
        Fri, 10 Feb 2017 11:48:09 -0500
Received: from esa1.hgst.iphmx.com ([68.232.141.245]:15536 "EHLO
        esa1.hgst.iphmx.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
        with ESMTP id S1753371AbdBJQsE (ORCPT
        <rfc822;linux-kernel@vger.kernel.org>);
        Fri, 10 Feb 2017 11:48:04 -0500
X-IronPort-AV: E=Sophos;i="5.33,348,1477929600"; 
   d="scan'208";a="82956673"
X-AuditID: ac1c2133-ab7ff7000001a7e2-38-589dee244026
From: Bart Van Assche <Bart.VanAssche@sandisk.com>
To: "tj@kernel.org" <tj@kernel.org>,
        "paolo.valente@linaro.org" <paolo.valente@linaro.org>,
        "axboe@kernel.dk" <axboe@kernel.dk>
CC: "ulf.hansson@linaro.org" <ulf.hansson@linaro.org>,
        "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
        "linux-block@vger.kernel.org" <linux-block@vger.kernel.org>,
        "broonie@kernel.org" <broonie@kernel.org>,
        "linus.walleij@linaro.org" <linus.walleij@linaro.org>
Subject: Re: [WIP PATCHSET 0/4] WIP branch for bfq-mq
Thread-Topic: [WIP PATCHSET 0/4] WIP branch for bfq-mq
Thread-Index: AQHSg70Si5qPlMga8EyBCA5JLElYmQ==
Date: Fri, 10 Feb 2017 16:45:23 +0000
Message-ID: <1486745110.2840.3.camel@sandisk.com>
References: <20170207172446.4528-1-paolo.valente@linaro.org>
In-Reply-To: <20170207172446.4528-1-paolo.valente@linaro.org>
Accept-Language: nl-NL, en-US
Content-Language: en-US
X-MS-Has-Attach: 
X-MS-TNEF-Correlator: 
x-originating-ip: [172.28.1.254]
Content-Type: text/plain; charset="iso-8859-1"
Content-ID: <FE431ACC56F6CC45812BB6646E05B99B@sandisk.com>
Content-Transfer-Encoding: 8BIT
MIME-Version: 1.0
X-Brightmail-Tracker: H4sIAAAAAAAAA+NgFtrFIsWRmVeSWpSXmKPExsWyRobxn67Gu7kRBu9kLFbf7WezmPrwCZvF
        lD/LmSz23tK2uLxrDpvFqz97mSx+LT/KaHF8bbgDh8fls6Uem1Z1snncubaHzePzJrkAligu
        m5TUnMyy1CJ9uwSujJ/vX7EX7GWrmHflJlMD4xbWLkZODgkBE4nb806xdDFycQgJLGGSmHTg
        BiuEc4xRYsXca8wgVWwCRhKzJ+wBqxIRaGSUmN1+kx3EYRaYzSRxecNTJpAqYQFTiTuLWsHm
        igiYSfz4fIQFwtaTuDF5IRuIzSKgKtHddxesnlfAUOLP5DlgNUICNhIdU5+B9XIK2Eq0Pr4M
        FOfgYBSQlWh5zQ0SZhYQl7j1ZD4TxNkCEkv2nGeGsEUlXj7+B/WOgsTnFf/YIOqB1k6dAmVb
        SUxtP8wIYWtLLFv4mhniBEGJkzOfsExgFJuFZMUsJO2zkLTPQtI+C0n7AkbWVYxixYnJxbnp
        qQWGJnrFiXkpmcXZesn5uZsYwTGqaLyD8d8G90OMAhyMSjy8HEfnRgixJpYVV+YeYpTgYFYS
        4ZV/AxTiTUmsrEotyo8vKs1JLT7EKM3BoiTOGzN7aoSQQHpiSWp2ampBahFMlomDU6qBcWv6
        6SdpPlNaY275lC7aLZd7xnXNikUSTI8jVZ9OrnHLX6T61TGN0eIVm5Ff1+WCTyH3dsl0fGNe
        EZ1V7/HzdfarDUmTLSWN/rDWfqzSXFG+SfvFl+A7TrGd89wZbxyMtv9xSbVr0+LN+/MS+ANO
        q2xNf2Ub382lcLWkv2bHvqKPjg3rxS5VKrEUZyQaajEXFScCAOxjVhLNAgAA
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

On Tue, 2017-02-07 at 18:24 +0100, Paolo Valente wrote:
> 2) Enable people to test this first version bfq-mq.

Hello Paolo,

I installed this version of bfq-mq on a server that boots from a SATA
disk. That server boots fine with kernel v4.10-rc7 but not with this
tree. The first 30 seconds of the boot process seem to proceed normally
but after that time the messages on the console stop scrolling and
about another 30 seconds later the server reboots. I haven't found
anything useful in the system log. I configured the block layer as
follows:

$ grep '^C.*_MQ_' .config
CONFIG_BLK_MQ_PCI=y
CONFIG_MQ_IOSCHED_BFQ=y
CONFIG_MQ_IOSCHED_DEADLINE=y
CONFIG_MQ_IOSCHED_NONE=y
CONFIG_DEFAULT_MQ_BFQ_MQ=y
CONFIG_DEFAULT_MQ_IOSCHED="bfq-mq"
CONFIG_SCSI_MQ_DEFAULT=y
CONFIG_DM_MQ_DEFAULT=y

Bart.