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=-0.8 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS 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 F2DC6ECDE44 for ; Mon, 5 Nov 2018 00:32:06 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id F40AE2081D for ; Mon, 5 Nov 2018 00:32:05 +0000 (UTC) DMARC-Filter: OpenDMARC Filter v1.3.2 mail.kernel.org F40AE2081D Authentication-Results: mail.kernel.org; dmarc=none (p=none dis=none) header.from=cox.net Authentication-Results: mail.kernel.org; spf=none smtp.mailfrom=linux-btrfs-owner@vger.kernel.org Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1729718AbeKEJs6 (ORCPT ); Mon, 5 Nov 2018 04:48:58 -0500 Received: from [195.159.176.226] ([195.159.176.226]:59683 "EHLO blaine.gmane.org" rhost-flags-FAIL-FAIL-OK-OK) by vger.kernel.org with ESMTP id S1726727AbeKEJs5 (ORCPT ); Mon, 5 Nov 2018 04:48:57 -0500 Received: from list by blaine.gmane.org with local (Exim 4.84_2) (envelope-from ) id 1gJSm7-0008Jq-V0 for linux-btrfs@vger.kernel.org; Mon, 05 Nov 2018 01:29:51 +0100 X-Injected-Via-Gmane: http://gmane.org/ To: linux-btrfs@vger.kernel.org From: Duncan <1i5t5.duncan@cox.net> Subject: Re: Filesystem mounts fine but hangs on access Date: Mon, 5 Nov 2018 00:29:45 +0000 (UTC) Message-ID: References: <20181104195530.6q2pkiy2aad5u53g@angband.pl> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: 8bit X-Complaints-To: usenet@blaine.gmane.org User-Agent: Pan/0.146 (Hic habitat felicitas; 22c743dad) Sender: linux-btrfs-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-btrfs@vger.kernel.org Adam Borowski posted on Sun, 04 Nov 2018 20:55:30 +0100 as excerpted: > On Sun, Nov 04, 2018 at 06:29:06PM +0000, Duncan wrote: >> So do consider adding noatime to your mount options if you haven't done >> so already. AFAIK, the only /semi-common/ app that actually uses >> atimes these days is mutt (for read-message tracking), and then not for >> mbox, so you should be safe to at least test turning it off. > > To the contrary, mutt uses atimes only for mbox. Figures that I'd get it reversed. >> And YMMV, but if you do use mutt or something else that uses atimes, >> I'd go so far as to recommend finding an alternative, replacing either >> btrfs (because as I said, relatime is arguably enough on a traditional >> non-COW filesystem) or whatever it is that uses atimes, your call, >> because IMO it really is that big a deal. > > Fortunately, mutt's use could be fixed by teaching it to touch atimes > manually. And that's already done, for both forks (vanilla and > neomutt). Thanks. -- Duncan - List replies preferred. No HTML msgs. "Every nonfree program has a lord, a master -- and if you use the program, he is your master." Richard Stallman