From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org X-Spam-Level: X-Spam-Status: No, score=-7.2 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,MENTIONS_GIT_HOSTING,SPF_HELO_NONE,SPF_PASS, USER_AGENT_SANE_1 autolearn=ham autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id ED06EC282DD for ; Fri, 10 Jan 2020 16:22:48 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id C74BD206ED for ; Fri, 10 Jan 2020 16:22:48 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728978AbgAJQWs (ORCPT ); Fri, 10 Jan 2020 11:22:48 -0500 Received: from magic.merlins.org ([209.81.13.136]:52836 "EHLO mail1.merlins.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1728868AbgAJQWr (ORCPT ); Fri, 10 Jan 2020 11:22:47 -0500 Received: from [161.30.203.8] (port=58232 helo=saruman.merlins.org) by mail1.merlins.org with esmtpsa (Cipher TLS1.2:DHE_RSA_AES_128_CBC_SHA1:128) (Exim 4.92 #3) id 1ipx3c-0007Ty-Cq by authid with srv_auth_plain; Fri, 10 Jan 2020 08:22:45 -0800 Received: from merlin by saruman.merlins.org with local (Exim 4.80) (envelope-from ) id 1ipx3R-0001iX-Bm; Fri, 10 Jan 2020 08:22:33 -0800 Date: Fri, 10 Jan 2020 08:22:33 -0800 From: Marc MERLIN To: Josef Bacik Cc: linux-btrfs@vger.kernel.org Subject: Re: 5.4.8: WARNING: errors detected during scrubbing, corrected Message-ID: <20200110162233.GJ4510@merlins.org> References: <20200109162839.GA29989@merlins.org> <5b11d0a5-b1be-decb-bc74-5b28866637ee@toxicpanda.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <5b11d0a5-b1be-decb-bc74-5b28866637ee@toxicpanda.com> X-Sysadmin: BOFH X-URL: http://marc.merlins.org/ User-Agent: Mutt/1.10.1 (2018-07-13) X-SA-No-Run: Yes X-Broken-Reverse-DNS: no host name for IP address 161.30.203.8 X-SA-Exim-Connect-IP: 161.30.203.8 X-SA-Exim-Mail-From: marc@merlins.org Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Fri, Jan 10, 2020 at 10:03:57AM -0500, Josef Bacik wrote: > On 1/9/20 11:28 AM, Marc MERLIN wrote: > > Howdy, > > > > I have 6 btrfs pools on my laptop on 3 different SSDs. > > After a few years, one of them is now very slow to scrub > > and hands my laptop while it runs. > > This started under 5.3.8, but upgrading to 5.4.8 didn't fix it. > > What the hell kind of laptop are you running that has 3 different SSDs? > That thing has got to weight a ton. Eheh :) Thinkpad P70, one M2 drive (room for one mor) and 2x 2.5" SSDs > Can you run the bcc tool offcputime > > https://github.com/iovisor/bcc/blob/master/tools/offcputime.py > > while scrub is running to get a few stack traces of where we're spending all > of our time? It'll help narrow down who is to blame. Thanks, Will do and report back, thanks. Marc -- "A mouse is a device used to point at the xterm you want to type in" - A.S.R. Home page: http://marc.merlins.org/ | PGP 7F55D5F27AAF9D08