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=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no 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 2AD1DC433B4 for ; Wed, 31 Mar 2021 14:04:47 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id E656460FDB for ; Wed, 31 Mar 2021 14:04:46 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235941AbhCaOEO convert rfc822-to-8bit (ORCPT ); Wed, 31 Mar 2021 10:04:14 -0400 Received: from mout.kundenserver.de ([212.227.126.130]:46063 "EHLO mout.kundenserver.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235947AbhCaOEB (ORCPT ); Wed, 31 Mar 2021 10:04:01 -0400 Received: from [192.168.177.84] ([91.56.89.170]) by mrelayeu.kundenserver.de (mreue009 [213.165.67.97]) with ESMTPSA (Nemesis) id 1MqatE-1lwJe1282a-00mZ19; Wed, 31 Mar 2021 16:03:57 +0200 From: "Hendrik Friedel" To: "Chris Murphy" Subject: Re[4]: Filesystem sometimes Hangs Cc: "Chris Murphy" , "Btrfs BTRFS" Date: Wed, 31 Mar 2021 14:03:58 +0000 Message-Id: In-Reply-To: References: Reply-To: "Hendrik Friedel" User-Agent: eM_Client/8.1.1060.0 Mime-Version: 1.0 Content-Type: text/plain; format=flowed; charset=utf-8 Content-Transfer-Encoding: 8BIT X-Provags-ID: V03:K1:8gn2oC32Z2Dmy+/Dqoxk/Zq4/8fIQkHMQ6kBlVvNqSVXZEL4LWT hUUfPFXDCPQew968RwPBS4lSOCuVn8SLfEUaG1lFK7kSaJtnIS4YoxshJoRhIPpLegZMH9D cMF7gyv6NBH4SQ6eUFtdypL4OuQmbdzHQh1SsoP2vNIsCIUJn5BXVs1de/xhfoquWHp2sGy ePqdRwDyvfIF2r4wd4y7Q== X-UI-Out-Filterresults: notjunk:1;V03:K0:xiQXZZN7wSo=:1rdIe3CMtgrFWk8LNVoXy5 ug6QkjtYaWrws7clwWZ64kB02Lar8C/3XJYvZjmj6lDT8AZSpsREQHgwzORxy36zplzN9OPYM zbOE/R3muaQUJHNIVDMTDjEYlL+LBOiFNRKIKA29VJBe9pnRiWkwBax/eAyL8IeKyhgjRB330 kTaZL9Wp7X/zsNYWvgIxWe/OBIn/Tcx0uphUIupMqimofNrx36sEqKgXE3CAWcrDZ+/TzRJ2X IuR24cXTLdgGwYnNqjcoT8hjrKCPE4yM3doyyXI9f7/4AcoeWKCz0gk0K9vliD4o5IpLX9bIn xCMNbFPoFOdxKQ0vSL7xgJFzrqNhnjlYon/a8DGMsQS8zKs20pk15tPjK2Cus2ZgIds91tDTQ XVPkZ0PKzXmV0JIGwFaF0ynB+ulOzVLgizlzzeAvNB1UqsGdfcPMv6VoSZU+AN26TUN7qNmkn 9L4PhuguoHe2N0cUK7FnPCyZCeH+v+fcBBWJSy++dAYqJOmSnFPF Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Hello Chris, thanks again for your reply. > >> 5.10.0-0.bpo.3-amd64 > >It's probably OK. I'm not sure what upstream stable version this >translates into, but current stable are 5.10.27 and 5.11.11. There >have been multiple btrfs bug fixes since 5.10.0 was released. > >I missed in your first email this line: Ok, I am compiling 5.11.11. >>[Mo Mär 29 09:29:21 2021] BTRFS info (device sdc2): turning on sync discard > >Remove the discard mount option for this file system and see if that >fixes the problem. Run it for a week or two, or until you're certain >the problem is still happening (or certain it's gone). Some drives >just can't handle sync discards, they become really slow and hang, >just like you're reporting. In fstab, this option is not set: /dev/disk/by-label/DataPool1 /srv/dev-disk-by-label-DataPool1 btrfs noatime,defaults,nofail 0 2 How do I deactivate discard then? These drives are spinning disks. I thought that discard is only relevant for SSDs? Regards, Hendrik > >