From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f70.google.com (mail-io1-f70.google.com [209.85.166.70]) (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 9BAA31798C for ; Sun, 11 Aug 2024 14:33:02 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.70 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723386784; cv=none; b=N7LJGaiSguFT55NDCdYNSIARGjMafRNzU6HEvDHayGHUFcaORwbJ/uCpigqpU5y/tgCq47/FhjIlkgJoPGMDy3xFmDq3tjmvkzB890cNejq5UzIxmV0AUwrCFEKaJN+Q69NHh3RxDOKKKyoqoNgpV9+4Ua5Ekz57KA6QSePKBdA= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1723386784; c=relaxed/simple; bh=1qxA6gdXrx3Bh4Vb32h+/uLtTqf9J6agBrFOcJnWxiI=; h=MIME-Version:Date:In-Reply-To:Message-ID:Subject:From:To: Content-Type; b=nUciKQqIZsFK9hu2f9FjFzZAwp2TWEV+lOaQt5RFPTqNdtb8KJv91lxad99waLxgtAgTCGduaqnuBCKKnsAY9/OQgcl8XCs5Mvufh7IxaZGj+sNL+FjEzk9TeF+mesZ6U/v5qQEN0Pw/Vd3Ouh88u3fnVTYYABAT/51dKCNlFYE= 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=209.85.166.70 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-f70.google.com with SMTP id ca18e2360f4ac-81faf98703eso478554439f.3 for ; Sun, 11 Aug 2024 07:33:02 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1723386781; x=1723991581; 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=0PgIS2zfsxKODMuDp8kp4cSzi3TYPfrmeL0DlFXiVt4=; b=MKJG8EQTdsPp9d84elhSo2eAzpRYXYDeRUENDxLubjR9LvcdQ20PDJfYQYBD8PtTWd 821hnUK/c5kE17tezWF8ncDSoEd5RtVK/n+tfwAt2FnxZ6fFLmoSBzsy8wmcxHqfr+5e 1fxaJNSfuCNYT8Kfh1PbuaaBKjyIQUJJh3bMqNLPnflZARAxib/1G/uC1d88jFaJnu+2 dtSzhR+ZrgrFMZICosCRx+cJDwdk75a+YDtt00bHBnp2SxktFRUkoNuze9B5GVmcE8/i Sov3uv08SKUvzkHCZg2xnhjp1U/PFOpGo7quTFq92nIPZalU2AAS81vTNlwMazwcBmrz OWNw== X-Forwarded-Encrypted: i=1; AJvYcCWDAvrJWkMl3rxBgvUGpIutqmqjhTHSMwyJVZK5XomPW1vwyiHS5MfiBRSPIVXREazVTwQOBlXBzIvAa0sBAD3KNweomeLkasFl3XFn X-Gm-Message-State: AOJu0YyBlRna1KvQPd6ZL8G+Nj7aHrhCyFEA7qfwQwNwbwGmhckghNRW ermgra1rWzd6LfxV8Iw4c/f/P33bcYkKsWJAKbfYoDL1pggdMwMcJsBS1RR5ITLSe0ZIqas6XLo /42sLERh5opV2lSZ/mlDhnWAHP5O4Y8K1k6+mG6M98SJ/QklVp6uv1GY= X-Google-Smtp-Source: AGHT+IEkDHPxMeuH1TpNq4t6DHDG7IGNI/8KeTQ3mdvYQF8I8eFYLTWv6k2QayPpAuTp5y20HlvA9Fu4t3kfOwtiok8ehfNMEnS0 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6602:15d4:b0:80c:826f:ae77 with SMTP id ca18e2360f4ac-8225ee44169mr16737439f.2.1723386781503; Sun, 11 Aug 2024 07:33:01 -0700 (PDT) Date: Sun, 11 Aug 2024 07:33:01 -0700 In-Reply-To: X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <000000000000ec2483061f69409d@google.com> Subject: Re: [syzbot] [v9fs?] WARNING in v9fs_begin_writeback From: syzbot To: eadavis@qq.com, linux-kernel@vger.kernel.org, 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 v9fs_begin_writeback ino state: 393351, ino: 190133a, comm: kworker/u32:0, folio: ffffea0000de1400, netfs_writepages ino: 190133a, v9fs_begin_writeback ------------[ cut here ]------------ folio expected an open fid inode->i_ino=190133a WARNING: CPU: 2 PID: 11 at fs/9p/vfs_addr.c:40 v9fs_begin_writeback+0x24c/0x2c0 fs/9p/vfs_addr.c:40 Modules linked in: CPU: 2 UID: 0 PID: 11 Comm: kworker/u32:0 Not tainted 6.11.0-rc1-syzkaller-00154-gc0ecd6388360-dirty #0 Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 Workqueue: writeback wb_workfn (flush-9p-212) RIP: 0010:v9fs_begin_writeback+0x24c/0x2c0 fs/9p/vfs_addr.c:40 Code: 00 fc ff df 48 8b 5b 48 48 8d 7b 40 48 89 fa 48 c1 ea 03 80 3c 02 00 75 7a 48 8b 73 40 48 c7 c7 e0 9f 8e 8b e8 35 40 0d fe 90 <0f> 0b 90 90 eb 80 e8 19 29 a8 fe e9 6f ff ff ff e8 7f 28 a8 fe e9 RSP: 0018:ffffc900000e7478 EFLAGS: 00010282 RAX: 0000000000000000 RBX: ffff888032acd3b0 RCX: ffffffff814cc379 RDX: ffff888017ea2440 RSI: ffffffff814cc386 RDI: 0000000000000001 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000000 R12: ffff888032acd3b0 R13: ffff888026ce12d8 R14: dffffc0000000000 R15: ffffc900000e7840 FS: 0000000000000000(0000) GS:ffff88806b200000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000020000740 CR3: 000000001efc6000 CR4: 0000000000350ef0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: netfs_writepages+0x97c/0x10a0 fs/netfs/write_issue.c:546 do_writepages+0x1ae/0x940 mm/page-writeback.c:2683 __writeback_single_inode+0x163/0xf90 fs/fs-writeback.c:1651 writeback_sb_inodes+0x611/0x1150 fs/fs-writeback.c:1947 wb_writeback+0x199/0xb50 fs/fs-writeback.c:2127 wb_do_writeback fs/fs-writeback.c:2274 [inline] wb_workfn+0x28d/0xf40 fs/fs-writeback.c:2314 process_one_work+0x9c5/0x1b40 kernel/workqueue.c:3231 process_scheduled_works kernel/workqueue.c:3312 [inline] worker_thread+0x6c8/0xf20 kernel/workqueue.c:3390 kthread+0x2c1/0x3a0 kernel/kthread.c:389 ret_from_fork+0x45/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Tested on: commit: c0ecd638 Merge tag 'pci-v6.11-fixes-1' of git://git.ke.. git tree: git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git console output: https://syzkaller.appspot.com/x/log.txt?x=15b7d95d980000 kernel config: https://syzkaller.appspot.com/x/.config?x=8da8b059e43c5370 dashboard link: https://syzkaller.appspot.com/bug?extid=0b74d367d6e80661d6df compiler: gcc (Debian 12.2.0-14) 12.2.0, GNU ld (GNU Binutils for Debian) 2.40 patch: https://syzkaller.appspot.com/x/patch.diff?x=16d13d11980000