From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f69.google.com (mail-io1-f69.google.com [209.85.166.69]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id D745419D8A9 for ; Tue, 27 Aug 2024 12:38:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.69 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724762284; cv=none; b=S33Baj+JK7iWN3kY7vGjwyM/lV0DGWrlG4SURPYiv5azweiAdvM6HxjgeM1pOdjJD33IdzvStwL03BbQILWllrBVBX95nl5UyIQdM6oPvSCNT4vqjdXvgEmp2fBKoFnenOzp1DlWWF5KkkF32B8f1ykrB/HmzyY5s8hX0LnVZrQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1724762284; c=relaxed/simple; bh=PneBBWaY0SjtyPv/fNcyaurRkY5sx0Vclmfxtzmjlvg=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=PvZdt3Nf/X+Cb3kLdBGMsgsFEbiN5OrVIw+kzwFRhvqBhQI+DaUF9J5j95U8QzitLza11fAFOr2628XUnd++MQFUZP+olVdjc+bg5jVZuKlygDEmzz0p9hq63fvOFWC5+n0+BHbBNnAN+t9cVF1BM495VJoIxcuvpXKzyxG+YZk= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com; arc=none smtp.client-ip=209.85.166.69 Authentication-Results: smtp.subspace.kernel.org; dmarc=fail (p=none dis=none) header.from=syzkaller.appspotmail.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=M3KW2WVRGUFZ5GODRSRYTGD7.apphosting.bounces.google.com Received: by mail-io1-f69.google.com with SMTP id ca18e2360f4ac-81f93601444so611943239f.2 for ; Tue, 27 Aug 2024 05:38:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1724762282; x=1725367082; h=to:from:subject:message-id:in-reply-to:date:mime-version :x-gm-message-state:from:to:cc:subject:date:message-id:reply-to; bh=CfQ2CgWV47HDV4GkEW+OxKq3IqX2dW3HcTDz2QDznTM=; b=Gm+Ee4fJnv+aSKLSmkmysyoIHQrePlk6Ie6LRC9dvuXJ3WEQKfJgy/4JE8g7RgN2zp Y2CmIc+8HKVX/50o+JWwbkQNmtbml12m9mQFNvl8dnTwh7DW4X9kJr7TcxEsS43SklUU xvHC+CRGGZO99GWvmZB0Inm6SEKyVgqNFXCmLPb7zw/eTT7gqlfRP9aW1REFxGZhsdgM A8aaDIe1QwGl+g6j+NVECmYi+cCbcGL7O2h7Vpwa3lihbCfNFh8/MSBl2hd8uEyyF4rc oWTNWhD1JnZhPwrMTldMmDGqnqykNtAKJQDo0lEiCorNg2neEbkH8hg15PLBfNnhG++S MSzQ== X-Forwarded-Encrypted: i=1; AJvYcCUcNXg+Z2vy51KuG47Ux5YY/mqeKRbBqRQ6o9/nJkJEsarBTQwIsLaGtcQ3J6/mozPUknM+aqZDj/aiBHhj@vger.kernel.org X-Gm-Message-State: AOJu0YyQBSnQZTQX6LLPp9to5741jcLPVjvRkr4OT7l3/EpBHl6mCzG4 sletFN9Gx+nj0Irx+Hom9dxBQS5d3aeN3oAM/1UFGUVvg0VFHbENWoRwxVQymezSFbRpPrbBJwL BKVtRftQKVgu9Fb7O+CQ/2om+Nt46YlmHAV/L4bWxs0LkYDB69t5Hi4U= X-Google-Smtp-Source: AGHT+IG+xxzMobc+xtKYrfH8fdxyx/EEiozghUn4UEmJywnZpi7IEKNYeU34TiR52ffvh5hl0mxpdeWRMCFgpwzAKzAMRMWvM38e Precedence: bulk X-Mailing-List: linux-fsdevel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:13c3:b0:4ce:8f9d:2c31 with SMTP id 8926c6da1cb9f-4ceb4d43fa1mr160147173.0.1724762281987; Tue, 27 Aug 2024 05:38:01 -0700 (PDT) Date: Tue, 27 Aug 2024 05:38:01 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000023e3760620a98329@google.com> Subject: Re: [syzbot] [iomap?] [xfs?] WARNING in iomap_write_begin From: syzbot To: brauner@kernel.org, chandan.babu@oracle.com, djwong@kernel.org, hch@infradead.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-xfs@vger.kernel.org, nogikh@google.com, sunjunchao2870@gmail.com, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot has tested the proposed patch but the reproducer is still triggering an issue: WARNING in iomap_write_begin XFS (loop0): Mounting V5 Filesystem bfdc47fc-10d8-4eed-a562-11a831b3f791 XFS (loop0): Ending clean mount XFS (loop0): Quotacheck needed: Please wait. XFS (loop0): Quotacheck: Done. ------------[ cut here ]------------ WARNING: CPU: 0 PID: 6042 at fs/iomap/buffered-io.c:727 __iomap_write_begin fs/iomap/buffered-io.c:727 [inline] WARNING: CPU: 0 PID: 6042 at fs/iomap/buffered-io.c:727 iomap_write_begin+0x13f0/0x16f0 fs/iomap/buffered-io.c:830 Modules linked in: CPU: 0 UID: 0 PID: 6042 Comm: syz.0.15 Not tainted 6.11.0-rc5-syzkaller-00015-g3e9bff3bbe13 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 08/06/2024 RIP: 0010:__iomap_write_begin fs/iomap/buffered-io.c:727 [inline] RIP: 0010:iomap_write_begin+0x13f0/0x16f0 fs/iomap/buffered-io.c:830 Code: b6 0d 01 90 48 c7 c7 e0 53 fa 8b e8 da 10 2b ff 90 0f 0b 90 90 e9 74 ef ff ff e8 eb ec 68 ff e9 4b f6 ff ff e8 e1 ec 68 ff 90 <0f> 0b 90 bb fb ff ff ff e9 e9 fe ff ff e8 ce ec 68 ff 90 0f 0b 90 RSP: 0018:ffffc9000315f7c0 EFLAGS: 00010293 RAX: ffffffff822a9ebf RBX: 0000000000000080 RCX: ffff88801ff39e00 RDX: 0000000000000000 RSI: 0000000000000080 RDI: 0000000000000000 RBP: ffffc9000315fa50 R08: ffffffff822a9bc4 R09: 1ffff1100c1a82f9 R10: dffffc0000000000 R11: ffffed100c1a82fa R12: ffffc9000315f9b0 R13: ffffc9000315fbf0 R14: ffffc9000315f990 R15: 0000000000000800 FS: 00007f572bb8f6c0(0000) GS:ffff8880b9200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020001000 CR3: 0000000020098000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: iomap_unshare_iter fs/iomap/buffered-io.c:1351 [inline] iomap_file_unshare+0x460/0x780 fs/iomap/buffered-io.c:1391 xfs_reflink_unshare+0x173/0x5f0 fs/xfs/xfs_reflink.c:1681 xfs_file_fallocate+0x6be/0xa50 fs/xfs/xfs_file.c:997 vfs_fallocate+0x553/0x6c0 fs/open.c:334 ksys_fallocate fs/open.c:357 [inline] __do_sys_fallocate fs/open.c:365 [inline] __se_sys_fallocate fs/open.c:363 [inline] __x64_sys_fallocate+0xbd/0x110 fs/open.c:363 do_syscall_x64 arch/x86/entry/common.c:52 [inline] do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f572ad779f9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f572bb8f038 EFLAGS: 00000246 ORIG_RAX: 000000000000011d RAX: ffffffffffffffda RBX: 00007f572af05f80 RCX: 00007f572ad779f9 RDX: 0000000000000000 RSI: 0000000000000040 RDI: 0000000000000006 RBP: 00007f572ade58ee R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000002000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007f572af05f80 R15: 00007fff39de1648 Tested on: commit: 3e9bff3b Merge tag 'vfs-6.11-rc6.fixes' of gitolite.ke.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13ca847b980000 kernel config: https://syzkaller.appspot.com/x/.config?x=a0455552d0b27491 dashboard link: https://syzkaller.appspot.com/bug?extid=296b1c84b9cbf306e5a0 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Note: no patches were applied.