From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from out30-132.freemail.mail.aliyun.com (out30-132.freemail.mail.aliyun.com [115.124.30.132]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id EBC551E8833; Tue, 15 Oct 2024 09:10:50 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=115.124.30.132 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728983454; cv=none; b=QnRofdlP5fr4bPX35p/DsJRAa1ABu1LdATfgqiO4fQ4YMcalMmg3GDKVShZHIi+djhxzfhBjiq9SvxP97My9V2SKhAZeH1TX3T3XS/tQ8kQxejmVixRosDP8Tdi8ASH7L5VZMPAbuMdioQ8l0WyD1m8q3nFtXazJ+d9a2zI+xQQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1728983454; c=relaxed/simple; bh=8xehucyXkfFfHp6IAPa2xOvlPkm5n/BEyTygnCKw0b4=; h=Message-ID:Date:MIME-Version:Subject:To:References:From: In-Reply-To:Content-Type; b=r+OTQCkhSCEeo8lh0jm2SY3BemEkADru8ig4UnDzBgva6Hf6q+KkE5aQqkjdGaoNRZNj/1Oni6vLobM89lgg0w0nXYEMUKEAv/pQw45HlSGixXBvcUJm+p09XNX3W5EsNWFyig1bT4GwNp/O6FVjSUufcHGz984uyj+5CmSn2TU= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com; spf=pass smtp.mailfrom=linux.alibaba.com; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b=rCl6tHSh; arc=none smtp.client-ip=115.124.30.132 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.alibaba.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (1024-bit key) header.d=linux.alibaba.com header.i=@linux.alibaba.com header.b="rCl6tHSh" DKIM-Signature:v=1; a=rsa-sha256; c=relaxed/relaxed; d=linux.alibaba.com; s=default; t=1728983448; h=Message-ID:Date:MIME-Version:Subject:To:From:Content-Type; bh=h5D/bFMKCf9XcwyqPiJ32DXbOFzCGsMRYuzWv6PI5jA=; b=rCl6tHShAPVKzFXuNZ1rJehpV6vGG/CY05/eTDh58fYqriNbPTfEGzQhhpkAjeb34hVY8C1xI8VD4lUCLRWx8RlerXopTX9ohoEnjAsA3GIErw+408Y1sR3C2fWUavJTIPsOWePEwGbTJIonLl85ldRWz976LMj2Fl+8xd3AGlw= Received: from 30.221.130.176(mailfrom:hsiangkao@linux.alibaba.com fp:SMTPD_---0WHD3S.B_1728983446 cluster:ay36) by smtp.aliyun-inc.com; Tue, 15 Oct 2024 17:10:47 +0800 Message-ID: <5f85c28d-5d06-4639-9453-41c38854173e@linux.alibaba.com> Date: Tue, 15 Oct 2024 17:10:46 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [syzbot] [iomap?] WARNING in iomap_iter (3) To: syzbot , brauner@kernel.org, chao@kernel.org, dhavale@google.com, djwong@kernel.org, huyue2@coolpad.com, jefflexu@linux.alibaba.com, linux-erofs@lists.ozlabs.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, syzkaller-bugs@googlegroups.com, xiang@kernel.org References: <670e2fe1.050a0220.d5849.0004.GAE@google.com> From: Gao Xiang In-Reply-To: <670e2fe1.050a0220.d5849.0004.GAE@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Hi, On 2024/10/15 17:03, syzbot wrote: > Hello, > > syzbot found the following issue on: > > HEAD commit: d61a00525464 Add linux-next specific files for 20241011 > git tree: linux-next > console+strace: https://syzkaller.appspot.com/x/log.txt?x=175a3b27980000 > kernel config: https://syzkaller.appspot.com/x/.config?x=8554528c7f4bf3fb > dashboard link: https://syzkaller.appspot.com/bug?extid=74cc7d98ae5484c2744d > compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 > syz repro: https://syzkaller.appspot.com/x/repro.syz?x=1513b840580000 > C reproducer: https://syzkaller.appspot.com/x/repro.c?x=1313b840580000 > > Downloadable assets: > disk image: https://storage.googleapis.com/syzbot-assets/f615720e9964/disk-d61a0052.raw.xz > vmlinux: https://storage.googleapis.com/syzbot-assets/c4a45c7583c6/vmlinux-d61a0052.xz > kernel image: https://storage.googleapis.com/syzbot-assets/d767ab86d0d0/bzImage-d61a0052.xz > mounted in repro: https://storage.googleapis.com/syzbot-assets/fce276498eea/mount_0.gz > > The issue was bisected to: > > commit 56bd565ea59192bbc7d5bbcea155e861a20393f4 > Author: Gao Xiang > Date: Thu Oct 10 09:04:20 2024 +0000 > > erofs: get rid of kaddr in `struct z_erofs_maprecorder` I will look into that, but it seems it's just a trivial cleanup, not quite sure what happens here... Thanks, Gao Xiang