Received: by 2002:a05:7412:251c:b0:e2:908c:2ebd with SMTP id w28csp2807676rda; Wed, 25 Oct 2023 12:56:16 -0700 (PDT) X-Google-Smtp-Source: AGHT+IHWWCka9ig4tZm6z5jI5iWtLDjxtDOOMPiU/BVCHsMhtunrzFYddC54vn2UXg+DR4mvSNCn X-Received: by 2002:a25:2d14:0:b0:d9b:4f28:f6ce with SMTP id t20-20020a252d14000000b00d9b4f28f6cemr16109098ybt.1.1698263776549; Wed, 25 Oct 2023 12:56:16 -0700 (PDT) ARC-Seal: i=1; a=rsa-sha256; t=1698263776; cv=none; d=google.com; s=arc-20160816; b=S6th50jB3xnQ6OQUeU1kUgDxyD5HoxQbdDtrDOClOGMdcW+Ep4IRx98O2U+wRMEEd6 N1f5IkR36v4KE7MCSm7jk2+5FW6bsFkaKzQZ35MW+f72jzBMfXCZUft8M8FHCxfeRyIp aQy84fiXAG5P+OetJbVAHvCKNj1we+Hfw6ZZGHfC8jayvAelVqt0XBsIjtJISqkCSM1K Baao5VN0/j5Gz+ekhSZ+a7ykadHurbh3J9zoS23/fKbOsh3Bv0sl6p/x5bsRs3gHglMh u+SGgnqRNbTkyOBa2MED9bHcioE2jEWUv6OIvppeLvjWmIAwpNoQrY2KVRf8YkhrYxUE 5Gmg== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=google.com; s=arc-20160816; h=list-id:precedence:in-reply-to:content-disposition:mime-version :references:message-id:subject:cc:to:from:date:dkim-signature; bh=egWKI6Iz0QgLqS+y6Zn0Qw6hj+csHebk5he/tWaHlZY=; fh=vX70WTOQ6VwSCFTblc1FL69QtoArcpe+IqfIIAHYp3s=; b=L+Z+4Ik2kkHExp8Y1sKwEhDqWZhJca4Fc0oMidhQM2Aaxst6uPsOgfIFRDVNI2oOMu wewyFj3kSRuRZpKV3+4L8ByKfw6qTnQSiALkWEAdHi1ZnwaQdCmcGA0Y3JYcUd1+iXTo 6jSaJHJM812uHjfwXTfcB0L+/JA4NXTo+zoeahrqNO4Uqv5OFvDvy+bBQnZXk5K6AG6T 6RRTYEJUL5lW4pB3xjVm4XnrFdJVqE7Bd//ma6fLFuu/zTPThYALR+bJMXmqICWHoCh/ zRm2eM9ucDMEQ5jUwLkOpn2YgVMpX4Mk4P8VhA5fnpczLjAEs/A+HAfSJN4y868SiIqf ENbQ== ARC-Authentication-Results: i=1; mx.google.com; dkim=pass header.i=@mit.edu header.s=outgoing header.b=T0JQ2xzb; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mit.edu Return-Path: Received: from howler.vger.email (howler.vger.email. [2620:137:e000::3:4]) by mx.google.com with ESMTPS id v1-20020a25ab81000000b00da04176841fsi5296267ybi.101.2023.10.25.12.56.15 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 25 Oct 2023 12:56:16 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) client-ip=2620:137:e000::3:4; Authentication-Results: mx.google.com; dkim=pass header.i=@mit.edu header.s=outgoing header.b=T0JQ2xzb; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::3:4 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=pass (p=NONE sp=NONE dis=NONE) header.from=mit.edu Received: from out1.vger.email (depot.vger.email [IPv6:2620:137:e000::3:0]) by howler.vger.email (Postfix) with ESMTP id 33F748022B72; Wed, 25 Oct 2023 12:56:13 -0700 (PDT) X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.103.10 at howler.vger.email Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229548AbjJYT4I (ORCPT + 99 others); Wed, 25 Oct 2023 15:56:08 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:49742 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229441AbjJYT4H (ORCPT ); Wed, 25 Oct 2023 15:56:07 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 54FC6189 for ; Wed, 25 Oct 2023 12:56:05 -0700 (PDT) Received: from cwcc.thunk.org (pool-173-48-111-143.bstnma.fios.verizon.net [173.48.111.143]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 39PJtesp008031 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Wed, 25 Oct 2023 15:55:41 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1698263743; bh=egWKI6Iz0QgLqS+y6Zn0Qw6hj+csHebk5he/tWaHlZY=; h=Date:From:Subject:Message-ID:MIME-Version:Content-Type; b=T0JQ2xzbsDgpLjFepBG8GSkJWwi7gpQ0KTulZWVXkqq2URX4iOSfjCl2PRROaSo/N vGddlVrqKXhqaxMat6EIb74sZc6l0EExVttcMjgATngbb6/b4ZwrM8L5v+I0beLO6P ZwwZFw2W2b94ZhESEN2XttKmNmLCwfMgJJMlZvxpGJB7s0OYV/KVEMRkl3gMLWJZE6 aFNukrswNMBxijO5JafhpFVncZTgn046BTw/6Fitt44oI3VTwSMxgzehTjufokRw0z aTtn2cLB0LIP/F5bwRq5lv+wE2mj0Srsird2Z7SvUeHOywwOTlcUhbmFaqnZjIaL3z SLY1GbWxIfdLg== Received: by cwcc.thunk.org (Postfix, from userid 15806) id AB7A015C0247; Wed, 25 Oct 2023 15:55:39 -0400 (EDT) Date: Wed, 25 Oct 2023 15:55:39 -0400 From: "Theodore Ts'o" To: Jens Axboe Cc: Andres Freund , Dave Chinner , Thorsten Leemhuis , Shreeya Patel , linux-ext4@vger.kernel.org, Ricardo =?iso-8859-1?Q?Ca=F1uelo?= , gustavo.padovan@collabora.com, zsm@google.com, garrick@google.com, Linux regressions mailing list , io-uring@vger.kernel.org Subject: Re: task hung in ext4_fallocate #2 Message-ID: <20231025195539.GA2897448@mit.edu> References: <20231017033725.r6pfo5a4ayqisct7@awork3.anarazel.de> <20231018004335.GA593012@mit.edu> <20231018025009.ulkykpefwdgpfvzf@awork3.anarazel.de> <74921cba-6237-4303-bb4c-baa22aaf497b@kernel.dk> <4ace2109-3d05-4ca0-b582-f7b8db88a0ca@kernel.dk> <20231025153135.kfnldzle3rglmfvp@awork3.anarazel.de> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: X-Spam-Status: No, score=-0.8 required=5.0 tests=DKIM_SIGNED,DKIM_VALID, DKIM_VALID_AU,HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI, SPF_HELO_NONE,SPF_PASS autolearn=unavailable autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on howler.vger.email Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org X-Greylist: Sender passed SPF test, not delayed by milter-greylist-4.6.4 (howler.vger.email [0.0.0.0]); Wed, 25 Oct 2023 12:56:13 -0700 (PDT) On Wed, Oct 25, 2023 at 09:36:01AM -0600, Jens Axboe wrote: > > FWIW, I wrote a small test case which does seem to trigger it very fast, > as expected: Great! I was about to ask if we had an easy reproducer. Any chance you can package this up as an test in xfstests? Or would you like some help with that? Thanks, - Ted