From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1751991AbeDJRaG convert rfc822-to-8bit (ORCPT ); Tue, 10 Apr 2018 13:30:06 -0400 Received: from mondschein.lichtvoll.de ([194.150.191.11]:37753 "EHLO mail.lichtvoll.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751929AbeDJRaF (ORCPT ); Tue, 10 Apr 2018 13:30:05 -0400 Authentication-Results: auth=pass smtp.auth=martin smtp.mailfrom=martin@lichtvoll.de From: Martin Steigerwald To: Hans de Goede Cc: Thorsten Leemhuis , Linux Kernel Mailing List , Tejun Heo , Bart Van Assche Subject: Re: [Possible REGRESSION, 4.16-rc4] Error updating SMART data during runtime and could not connect to lvmetad at some boot attempts Date: Tue, 10 Apr 2018 19:30:03 +0200 Message-ID: <3388323.DMBn0mQjXY@merkaba> In-Reply-To: References: <27165802.vQ9JbjrmvU@merkaba> MIME-Version: 1.0 Content-Transfer-Encoding: 8BIT Content-Type: text/plain; charset="UTF-8" Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hans de Goede - 19.03.18, 10:50: > > Martin (or someone else): Could you gibe a status update? I have this > > issue on my list or regressions, but it's hard to follow as two > > different issues seem to be discussed. Or is it just one issue? Did the > > patch/discussion that Bart pointed to help? Is the issue still showing > > up in rc6? > > Your right there are 2 issues here: […] > 2) There seem to be some latency issues in the MU03 version of the > firmware, triggered by polling SMART data, which causes lvmetad to > timeout in some cases. Note I'm not involved in that part of this > thread, but I believe that issue is currently unresolved. The second issue consists of what Hans described + an occassional hang on boot for resume from hibernation to disk. The second issue is still unfixed as of 4.16 + [PATCH v2] block: Change a rcu_read_{lock,unlock}_sched() pair into rcu_read_{lock,unlock}() vom Bart Van Asche, which Jens Axboe accepted¹. [1] https://patchwork.kernel.org/patch/10294287/ Currently compiling 4.16.1, but I do not expect a change, as there is nothing about blk-mq subsystem in the changelog as far as I saw. Will update [Bug 199077] [Possible REGRESSION, 4.16-rc4] Error updating SMART data during runtime and boot failures with blk_mq_terminate_expired in backtrace https://bugzilla.kernel.org/show_bug.cgi?id=199077 as well about the current state. The bug report contains a screenshot of one of the boot hangs. I had two more on Monday, but did not take the chance to make another photo. I will do so next time in case its convenient enough and compare whether it reveals anything more than my first photo. Thanks, -- Martin