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 1D649C77B60 for ; Sun, 30 Apr 2023 06:40:52 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231814AbjD3Gkq (ORCPT ); Sun, 30 Apr 2023 02:40:46 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:33202 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231809AbjD3Gko (ORCPT ); Sun, 30 Apr 2023 02:40:44 -0400 Received: from outgoing.mit.edu (outgoing-auth-1.mit.edu [18.9.28.11]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 18D9B1993 for ; Sat, 29 Apr 2023 23:40:42 -0700 (PDT) Received: from letrec.thunk.org ([76.150.80.181]) (authenticated bits=0) (User authenticated as tytso@ATHENA.MIT.EDU) by outgoing.mit.edu (8.14.7/8.12.4) with ESMTP id 33U6eNoc011311 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-GCM-SHA384 bits=256 verify=NOT); Sun, 30 Apr 2023 02:40:25 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=mit.edu; s=outgoing; t=1682836829; bh=iBfl+AI+TPXIjruYn9BTakCU2j/MI6yZMdHCd0wR+w0=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=UwX75s5X9ohAWnGAWjLY809SChJuRowRZKwj3Iw1SuH+lgRoEhz65oefP4hGEWZop CoLfdbjQlerDCy3vn+gYbrNUfGSEiaLccdXlQ3gWeUmzTTAyxoRMLVI9Z4dQ8mSSR7 GsiQ3Q/Jz8ASWZ5Y+ffCdB6OcWzKUaBauVze6rvqYK4HcXnaq/MG1lXCwCt9ThyJzY SE+ui5CErQDhhbL3EkOL+40rLiXUlDAqK2KdbMduYZiUKO5Jv/U/jWitAKfuhiS/Ry 2ibVSrIRtAPKvrb1xasY7YaFRLA8nG9u1FxCiA3YLV8FW/HiQQYKRa6bDCniijz0dz LRoVhCld8IHww== Received: by letrec.thunk.org (Postfix, from userid 15806) id 158158C023E; Sun, 30 Apr 2023 02:40:22 -0400 (EDT) Date: Sun, 30 Apr 2023 02:40:22 -0400 From: "Theodore Ts'o" To: syzbot Cc: hch@infradead.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com, viro@zeniv.linux.org.uk Subject: Re: [syzbot] [sysv?] [vfs?] WARNING in invalidate_bh_lru Message-ID: References: <000000000000eccdc505f061d47f@google.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <000000000000eccdc505f061d47f@google.com> Precedence: bulk List-ID: X-Mailing-List: linux-fsdevel@vger.kernel.org On Wed, Dec 21, 2022 at 06:57:38PM -0800, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: a5541c0811a0 Merge branch 'for-next/core' into for-kernelci > git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci > console output: https://syzkaller.appspot.com/x/log.txt?x=1560b830480000 > kernel config: https://syzkaller.appspot.com/x/.config?x=cbd4e584773e9397 > dashboard link: https://syzkaller.appspot.com/bug?extid=9743a41f74f00e50fc77 > compiler: Debian clang version 13.0.1-++20220126092033+75e33f71c2da-1~exp1~20220126212112.63, GNU ld (GNU Binutils for Debian) 2.35.2 > userspace arch: arm64 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=15e320b3880000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=147c0577880000 #syz set subsystems: sysv, udf There are two reproducers, one that mounts a sysv file system, and the other which mounts a udf file system. There is no mention of ext4 in the stack trace, and yet syzbot has assigned this to the ext4 subsystem for some unknown reason. - Ted