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[2620:137:e000::1:20]) by mx.google.com with ESMTP id i3-20020a17090332c300b001a0773e915esi28069926plr.360.2023.04.30.16.32.51; Sun, 30 Apr 2023 16:33:07 -0700 (PDT) Received-SPF: pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) client-ip=2620:137:e000::1:20; Authentication-Results: mx.google.com; dkim=fail header.i=@mit.edu header.s=outgoing header.b=Aw657uuN; spf=pass (google.com: domain of linux-ext4-owner@vger.kernel.org designates 2620:137:e000::1:20 as permitted sender) smtp.mailfrom=linux-ext4-owner@vger.kernel.org; dmarc=fail (p=NONE sp=NONE dis=NONE) header.from=mit.edu Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S229531AbjD3X3H (ORCPT + 99 others); Sun, 30 Apr 2023 19:29:07 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:51756 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229519AbjD3X3H (ORCPT ); Sun, 30 Apr 2023 19:29:07 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 783E2183 for ; Sun, 30 Apr 2023 16:29:04 -0700 (PDT) Received: from letrec.thunk.org ([216.250.210.3]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 33UNSmre008397 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 30 Apr 2023 19:28:56 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1682897338; bh=Qo4pKrdIiRKoB2Q0zHTwoPbMxDyuxD6ZK4kjONCoNgI=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=Aw657uuNbYdUGVZfon+v2YwAe8MuZgKs3bif8yXCdAByunXQXThuD7CxEpllRT5Z1 idoRYmZYe6s6Q0Ogbffug0CXBDe/PbySEVFn644YybgClvpvtPISLQCP+gqucc2oIH LCL68/Hgy6yILyLpnFka7M5KY/53UByGUZjuen18F8wP+Bb+/pX7pXuDvtjBCJcz0W sjnMigxMz6bOFV++V7GNL7ODo28jPi2hfjNtiEXgzn37RjfOKDmzSd2qlxpj9WRB6k FOLATe0IFF5MWfIKkSNR4LL32DQA5tW0Tgnfef5iEnviHGuchERjY5cBEvIbj47kCp wXTMGCiR1Da4Q== Received: by letrec.thunk.org (Postfix, from userid 15806) id 4D4008C02D7; Sun, 30 Apr 2023 19:28:46 -0400 (EDT) Date: Sun, 30 Apr 2023 19:28:46 -0400 From: "Theodore Ts'o" To: syzbot Cc: adilger.kernel@dilger.ca, linux-ext4@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Subject: Re: [syzbot] possible deadlock in ext4_bmap Message-ID: References: <000000000000967c2805e5b5d4ed@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000967c2805e5b5d4ed@google.com> X-Spam-Status: No, score=-4.0 required=5.0 tests=BAYES_00,DKIM_INVALID, DKIM_SIGNED,RCVD_IN_DNSWL_MED,SPF_HELO_NONE,SPF_NONE, T_SCC_BODY_TEXT_LINE autolearn=ham autolearn_force=no version=3.4.6 X-Spam-Checker-Version: SpamAssassin 3.4.6 (2021-04-09) on lindbergh.monkeyblade.net Precedence: bulk List-ID: X-Mailing-List: linux-ext4@vger.kernel.org On Mon, Aug 08, 2022 at 12:33:22AM -0700, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: ca688bff68bc Add linux-next specific files for 20220808 > git tree: linux-next > console output: https://syzkaller.appspot.com/x/log.txt?x=177eb001080000 > kernel config: https://syzkaller.appspot.com/x/.config?x=4c20e006003cdecb > dashboard link: https://syzkaller.appspot.com/bug?extid=9543479984ae9e576000 > compiler: gcc (Debian 10.2.1-6) 10.2.1 20210110, GNU ld (GNU Binutils for Debian) 2.35.2 #syz fix: ext4, jbd2: add an optimized bmap for the journal inode