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 218B82144C8 for ; Sun, 24 Nov 2024 13:45:18 +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=1732455921; cv=none; b=tkynZjko2NFDIwXMOQgDcOpaFNxfbzhUG0OZjRek0ReOag6UPpc+o6D6PnvGNUw0usAPBacSZFzpHFj4IS1wxBtbtEsqLfaNunAfjvEDRacZjR6FMRpPKnd/0wZoBI22hB+s6hYaJrTOA4/CMuDKp4WHV3Pyc9KHSJ3m30KKGPQ= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1732455921; c=relaxed/simple; bh=gBCA6PvhsD68CM59+LDlo4RQBIZiH2mLYih1G5oOcD4=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=AHtWBwAF1Wa8KCMSs4nAl/dJYwLt/i+cNEmUGtAa5vlUp9sI2sdwxBnwIVT87psDwmUcFajpt8rsWhv4sDm3GhUHMigZ6BuAVxyup0OMOn+S3nABg651b+0eRFFtFi0CmSuGd9vTrEplyFm82k9hiXy8Dbn7AJs3Bb8oZac9xr0= 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-83ab3d46472so382456739f.2 for ; Sun, 24 Nov 2024 05:45:18 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1732455918; x=1733060718; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=a81M4efnjatMHVgJX7A227EncQOmk61XuBnuORvoZ3Y=; b=w3/OaIFcZyjGnkMKK+aBt98v6iGL3jFiOD4NqQUG4l/abA8QQXs+oNNg+ZbpiCxflq Ej3sdb2uElg3K0txTI/qcrRoZEvdH7rlCuilB2sbeKOQz9tM9APPnN/2VdqhaN8igNGc 3GmXS85Zl0pLf5vfavFxbSJ82Hd7vr9oYOvpACbustFFfccOhBmFbMlMwzhe29lvwfiV tnOBjC8KpajyTju5lCNn+O4TyqgqhnKdIuJGZ/XjA26nu+QDIJ6OD4eHKvEiD9xYFCFg 9P/4AnmbrioyvxhNxSkXc2BfaoBF0QviWXRlhZMcooirkTpmSOuSyV1xPiR0Jxzj3DZr yHSQ== X-Forwarded-Encrypted: i=1; AJvYcCXNcsjDtzV3t7NOfFWa3G9J0SpgOK8LG45JBB3hACH6uPlIbPrL/lTwHl+ErjTUFzDdaJIQgte1g5M+7g==@vger.kernel.org X-Gm-Message-State: AOJu0Yz+BLAyLZrbw7FUX/fHloj6+ORbpPn1HXe2xKeQFXvzxogYBClo qwk4Uq9YFuN4uhmBcacooJJZ89aOb3YHEy+AhuSd8p0DHFuBzL1QNVzYpd3HeDbX1xWyyJ2/Md5 iNaLM+8/tOy2qG4aPbJOTXH4LuwiobYxgZLIt+JELNUwUl2JLxwHZV1E= X-Google-Smtp-Source: AGHT+IFpf92NeJYFxU9gLOtHQWOMGi4CPunFrp6hEzgy12y0qdbEpdXOPeIXOk5eDbM6qrzAD0q4COZzziVxCCKzXfh50C0PeRrs Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:164c:b0:3a7:15aa:3fcc with SMTP id e9e14a558f8ab-3a79acea4e0mr111445195ab.1.1732455918361; Sun, 24 Nov 2024 05:45:18 -0800 (PST) Date: Sun, 24 Nov 2024 05:45:18 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67432dee.050a0220.1cc393.0041.GAE@google.com> Subject: [syzbot] [btrfs?] kernel BUG in __folio_start_writeback From: syzbot To: akpm@linux-foundation.org, clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@vger.kernel.org, linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, linux-mm@kvack.org, syzkaller-bugs@googlegroups.com, willy@infradead.org Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 228a1157fb9f Merge tag '6.13-rc-part1-SMB3-client-fixes' o.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=13820530580000 kernel config: https://syzkaller.appspot.com/x/.config?x=402159daa216c89d dashboard link: https://syzkaller.appspot.com/bug?extid=aac7bff85be224de5156 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=13840778580000 C reproducer: https://syzkaller.appspot.com/x/repro.c?x=17840778580000 Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/d32a8e8c5aae/disk-228a1157.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/28d5c070092e/vmlinux-228a1157.xz kernel image: https://storage.googleapis.com/syzbot-assets/45af4bfd9e8e/bzImage-228a1157.xz mounted in repro: https://storage.googleapis.com/syzbot-assets/69603aa12e8f/mount_0.gz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+aac7bff85be224de5156@syzkaller.appspotmail.com __fput+0x5ba/0xa50 fs/file_table.c:458 task_work_run+0x24f/0x310 kernel/task_work.c:239 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop kernel/entry/common.c:114 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:329 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f ------------[ cut here ]------------ kernel BUG at mm/page-writeback.c:3119! Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI CPU: 0 UID: 0 PID: 12 Comm: kworker/u8:1 Not tainted 6.12.0-syzkaller-08446-g228a1157fb9f #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: btrfs-delalloc btrfs_work_helper RIP: 0010:__folio_start_writeback+0xc06/0x1050 mm/page-writeback.c:3119 Code: 25 ff 0f 00 00 0f 84 d3 00 00 00 e8 14 ae c3 ff e9 ba f5 ff ff e8 0a ae c3 ff 4c 89 f7 48 c7 c6 00 2e 14 8c e8 8b 4f 0d 00 90 <0f> 0b e8 f3 ad c3 ff 4c 89 f7 48 c7 c6 60 34 14 8c e8 74 4f 0d 00 RSP: 0018:ffffc90000117500 EFLAGS: 00010246 RAX: ed413247a2060f00 RBX: 0000000000000002 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: ffffffff8c0ad620 RDI: 0000000000000001 RBP: ffffc90000117670 R08: ffffffff942b2967 R09: 1ffffffff285652c R10: dffffc0000000000 R11: fffffbfff285652d R12: 0000000000000000 R13: 1ffff92000022eac R14: ffffea0001cab940 R15: ffff888077139710 FS: 0000000000000000(0000) GS:ffff8880b8600000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f6661870000 CR3: 00000000792b2000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: process_one_folio fs/btrfs/extent_io.c:187 [inline] __process_folios_contig+0x31c/0x540 fs/btrfs/extent_io.c:216 submit_one_async_extent fs/btrfs/inode.c:1229 [inline] submit_compressed_extents+0xdb3/0x16e0 fs/btrfs/inode.c:1632 run_ordered_work fs/btrfs/async-thread.c:245 [inline] btrfs_work_helper+0x56b/0xc50 fs/btrfs/async-thread.c:324 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa63/0x1850 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x2f0/0x390 kernel/kthread.c:389 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:147 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__folio_start_writeback+0xc06/0x1050 mm/page-writeback.c:3119 Code: 25 ff 0f 00 00 0f 84 d3 00 00 00 e8 14 ae c3 ff e9 ba f5 ff ff e8 0a ae c3 ff 4c 89 f7 48 c7 c6 00 2e 14 8c e8 8b 4f 0d 00 90 <0f> 0b e8 f3 ad c3 ff 4c 89 f7 48 c7 c6 60 34 14 8c e8 74 4f 0d 00 RSP: 0018:ffffc90000117500 EFLAGS: 00010246 RAX: ed413247a2060f00 RBX: 0000000000000002 RCX: 0000000000000001 RDX: dffffc0000000000 RSI: ffffffff8c0ad620 RDI: 0000000000000001 RBP: ffffc90000117670 R08: ffffffff942b2967 R09: 1ffffffff285652c R10: dffffc0000000000 R11: fffffbfff285652d R12: 0000000000000000 R13: 1ffff92000022eac R14: ffffea0001cab940 R15: ffff888077139710 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000055ec8463e668 CR3: 000000007ed5e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 --- This report is generated by a bot. It may contain errors. See https://goo.gl/tpsmEJ for more information about syzbot. syzbot engineers can be reached at syzkaller@googlegroups.com. syzbot will keep track of this issue. See: https://goo.gl/tpsmEJ#status for how to communicate with syzbot. If the report is already addressed, let syzbot know by replying with: #syz fix: exact-commit-title If you want syzbot to run the reproducer, reply with: #syz test: git://repo/address.git branch-or-commit-hash If you attach or paste a git patch, syzbot will apply it before testing. If you want to overwrite report's subsystems, reply with: #syz set subsystems: new-subsystem (See the list of subsystem names on the web dashboard) If the report is a duplicate of another one, reply with: #syz dup: exact-subject-of-another-report If you want to undo deduplication, reply with: #syz undup