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 Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 9F8A1C6FA82 for ; Thu, 8 Sep 2022 13:15:09 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S232278AbiIHNPI (ORCPT ); Thu, 8 Sep 2022 09:15:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49476 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S232211AbiIHNO7 (ORCPT ); Thu, 8 Sep 2022 09:14:59 -0400 Received: from mail-qk1-x72f.google.com (mail-qk1-x72f.google.com [IPv6:2607:f8b0:4864:20::72f]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 4F2AF36DED for ; Thu, 8 Sep 2022 06:14:50 -0700 (PDT) Received: by mail-qk1-x72f.google.com with SMTP id f4so12805285qkl.7 for ; Thu, 08 Sep 2022 06:14:50 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=toxicpanda-com.20210112.gappssmtp.com; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:from:to:cc:subject:date; bh=6rZ+9vbPBRuVTOwvwgSEG/BRr+O1vT8zmUO6KgsWa28=; b=M02Cgjn3qXxjDYuZ0C34rsY0i+s+8J0nTE8bgANCszBPxBdJ6KiNMQtX/khFAXkLFU L30tcEWSd3oiYoT60BEmZW9uOiZi0++TPWHKbs2OVEN6SiVK8YjdIEivGO0AzoQMbg3U 1oaYx43sjz9otnzwM9ku7j4Mot+Gl2WG6T3Wj/WzF9PtMWfwWMBNC8iZz08h2O+eUosT e5J8Vjt4XdztV5LWrL8e6O7PDtiq4/EET1Z6XsX2c4BWo0OQC0Z+39evFa33eQ0k26pr AakKWgeooa7XT0rZJd6yk8GT+wRirz8/qjK3flmDJDlIWwK7a25QQ/90BCDDsC3YaULk B4wQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20210112; h=in-reply-to:content-disposition:mime-version:references:message-id :subject:cc:to:from:date:x-gm-message-state:from:to:cc:subject:date; bh=6rZ+9vbPBRuVTOwvwgSEG/BRr+O1vT8zmUO6KgsWa28=; b=YZjIWF1bcOuGL6eLBSrWlvIHyqltz+r+6kwqVTVGvAOz+TY5Q10/yTnyC8hWNim1+U AgOgnl85YWe+XNnK7ApkMWT2Q+ZIQIB0JOUOECqmQqdjVT/aRrWhERYMsM22zZDAIZpi RCXUUPl+NAB74scS8s33xQpGYjj+VyWsmQ26VqXCi1eYSlC+55xfrUFSmP8NLJKxlFHv 82fS3O/Qexv4KjYFADP9cQUyiztNCrfzcpz64xR3DQmMUNHtNbxsmmGa6EYEx9YSatNb q58splceXTlKq5kdgpliO1BOETSUiG9w+AXMr5gT5eAvN1iTHjttRSRzO7E74uef0cPI c/xQ== X-Gm-Message-State: ACgBeo38GzJ0p/68p2ONwhnh3qhNlJX+fhbF/S6o9Y+wEEy0DLN3gdw6 wAs6VFdeWwX3/9laqXV6GoTklL7Ork/IYw== X-Google-Smtp-Source: AA6agR6iqfJNTDLuFn0n54F9PEC90VpJOW+cwZyIrQOjWUQFSkGSuxrxcyifr/PR1c1AXnDUs3yTbg== X-Received: by 2002:a05:620a:1788:b0:6bb:75c3:ba06 with SMTP id ay8-20020a05620a178800b006bb75c3ba06mr5928089qkb.686.1662642889349; Thu, 08 Sep 2022 06:14:49 -0700 (PDT) Received: from localhost (cpe-174-109-172-136.nc.res.rr.com. [174.109.172.136]) by smtp.gmail.com with ESMTPSA id fu27-20020a05622a5d9b00b003434d3b5938sm15301074qtb.2.2022.09.08.06.14.48 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Thu, 08 Sep 2022 06:14:48 -0700 (PDT) Date: Thu, 8 Sep 2022 09:14:47 -0400 From: Josef Bacik To: fdmanana@kernel.org Cc: linux-btrfs@vger.kernel.org Subject: Re: [PATCH 0/3] btrfs: fix a couple of hangs during unmount caused by races Message-ID: References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org On Thu, Sep 08, 2022 at 12:31:49PM +0100, fdmanana@kernel.org wrote: > From: Filipe Manana > > Due to some races or bad timmings, we can hang during unmount when trying > to stop the block group reclaim task or one of the space reclaim tasks. > The second case if often triggered by generic/562 for a while, but the > underlying problem has been there for a long time, despite seeming to be > more frequent recently. More details in the changelogs. > You can add Reviewed-by: Josef Bacik to the entire series, thanks, Josef