From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751174AbeAVVbv (ORCPT ); Mon, 22 Jan 2018 16:31:51 -0500 Received: from userp2130.oracle.com ([156.151.31.86]:44866 "EHLO userp2130.oracle.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750878AbeAVVbu (ORCPT ); Mon, 22 Jan 2018 16:31:50 -0500 To: Paul Menzel Cc: Keith Busch , Jens Axboe , Christoph Hellwig , Sagi Grimberg , linux-kernel@vger.kernel.org, linux-nvme@lists.infradead.org Subject: Re: Report long suspend times of NVMe devices (mostly firmware/device issues) From: "Martin K. Petersen" Organization: Oracle Corporation References: <9e398971-762d-bb1a-f798-bf0b18cb5b6b@molgen.mpg.de> Date: Mon, 22 Jan 2018 16:31:11 -0500 In-Reply-To: <9e398971-762d-bb1a-f798-bf0b18cb5b6b@molgen.mpg.de> (Paul Menzel's message of "Mon, 22 Jan 2018 22:02:12 +0100") Message-ID: User-Agent: Gnus/5.13 (Gnus v5.13) Emacs/25.3 (gnu/linux) MIME-Version: 1.0 Content-Type: text/plain X-Proofpoint-Virus-Version: vendor=nai engine=5900 definitions=8782 signatures=668655 X-Proofpoint-Spam-Details: rule=notspam policy=default score=0 suspectscore=0 malwarescore=0 phishscore=0 bulkscore=0 spamscore=0 mlxscore=0 mlxlogscore=570 adultscore=0 classifier=spam adjust=0 reason=mlx scancount=1 engine=8.0.1-1711220000 definitions=main-1801220290 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Paul, > In my opinion anything longer than 200 ms should be reported similar to > [2], and maybe worded like below. There are many controllers out there that take double-digit seconds to shut down. -- Martin K. Petersen Oracle Linux Engineering