From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f207.google.com (mail-il1-f207.google.com [209.85.166.207]) (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 382E620311 for ; Sat, 4 Jan 2025 02:25:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.207 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735957524; cv=none; b=FjIMIX7BnRVlkAWPQjN5WKU5c2zQE55VpidPlCrO9rI7n1PTzMX08yKZY74j1uOBxh1SLlUgdsZA03NsNq242UZB/GhNxsZRj/NsrG6bFdtFLCfqvHH72GDPHlhp7H6VWLkByCyhl97Ol/gzZeaoEIeQuD2kOI5pJiiz5MUVllU= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1735957524; c=relaxed/simple; bh=9ZDyRXP0PeqkGT9dbw3DJ8lg/X/Icf/YDuAuDrMiwLU=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=rkpodzJWT5OS8c3iyem8/I1/aU+2oz6ZrJhg+bocRmZwRdBtB6aMNZXeWqgx80VKvEfGGC+UTyLJkiKFdGnkV2R2XOdV1EyWP5WfIOBEy3uQGptUCnGatQNZPJfNriV4Grc5s39yxuI7F7QDDLoY+0+tFJ9Yl1mEzPs0C2NMKlI= 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=209.85.166.207 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-il1-f207.google.com with SMTP id e9e14a558f8ab-3cdd61a97easo4100155ab.2 for ; Fri, 03 Jan 2025 18:25:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1735957522; x=1736562322; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=0CWO+yDr+ffCG2eM2Y9qci19DwnJM+3GKncnHIIWySs=; b=kJjRbzlFaUvpi53X6mCdV82XyOQ1ZMRJhhqwx4HE6CtOr3wA3eguOzoeU8XVGvY9Eh YaGrqc4Pn50RJuPHBPdAq6npuYjMFE23ezK4rdpks+jekmsji1Pn8C16g8tlxkXzldCl oGFDbcFhZDRtjNgdLov/YuFLTxZ85CKIU4imPVus7YMJAD6/nkUUKNfZXG89YoOPrD0t zsVNxU7d10F3+bjvNY1PorcREHyWxMECxogoFLsfPATBmrmNWv8qd8Q1RyHamGczQ0dj Td4bVeajP94OqdVfcRAckATyhaZnXHjvwlZcmC4HyV7hiRPt/TRN8/TJwIcQeLfix1DD VACQ== X-Forwarded-Encrypted: i=1; AJvYcCVXX1K0RmkQPx6PNtxxCKG+ZYw/QzHs8CxSlhqH+O0W7RGn6oeeYUFjBxtvobYOAHa3ErYBi89D4h6IZmk=@vger.kernel.org X-Gm-Message-State: AOJu0Ywg827hlhBaY56mdECf/E3/B4UoCl6uLmAR9lSJXmL9HA6Ypv3j 2EoWVAF7QPOhWNd0W/tWFCFhQ24Gagt2QyMesnn5yPW/F0lI3803msINHC9zfDnOc9dUWOz7WJ/ rcKC89y2q5qzYYdNeOcWliaqZftoJgNqheUhF/s9iXKBUkwl6d/ua7vs= X-Google-Smtp-Source: AGHT+IFtAHBCDJ+PoL9k6ksv6YIP8WvND6n5SoG1x+MptbPHXoMKawMywDrqpl1N/IJSUgzLJW4tNomGcXDxFuCnLI/YpEV0o4By Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:3d07:b0:3a7:99a5:a207 with SMTP id e9e14a558f8ab-3c2d17bececmr432323525ab.5.1735957522435; Fri, 03 Jan 2025 18:25:22 -0800 (PST) Date: Fri, 03 Jan 2025 18:25:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <67789c12.050a0220.3b53b0.0043.GAE@google.com> Subject: [syzbot] [hfs?] WARNING in check_flush_dependency (3) From: syzbot To: linux-fsdevel@vger.kernel.org, linux-kernel@vger.kernel.org, syzkaller-bugs@googlegroups.com Content-Type: text/plain; charset="UTF-8" Hello, syzbot found the following issue on: HEAD commit: 8155b4ef3466 Add linux-next specific files for 20241220 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=11df6ac4580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9c90bb7161a56c88 dashboard link: https://syzkaller.appspot.com/bug?extid=3d1442173e1be9889481 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/98a974fc662d/disk-8155b4ef.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/2dea9b72f624/vmlinux-8155b4ef.xz kernel image: https://storage.googleapis.com/syzbot-assets/593a42b9eb34/bzImage-8155b4ef.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+3d1442173e1be9889481@syzkaller.appspotmail.com ------------[ cut here ]------------ workqueue: WQ_MEM_RECLAIM dio/loop6:dio_aio_complete_work is flushing !WQ_MEM_RECLAIM events_long:flush_mdb WARNING: CPU: 1 PID: 51 at kernel/workqueue.c:3712 check_flush_dependency+0x329/0x3c0 kernel/workqueue.c:3708 Modules linked in: CPU: 1 UID: 0 PID: 51 Comm: kworker/1:1 Not tainted 6.13.0-rc3-next-20241220-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 Workqueue: dio/loop6 dio_aio_complete_work RIP: 0010:check_flush_dependency+0x329/0x3c0 kernel/workqueue.c:3708 Code: 08 4c 89 f7 e8 e8 f6 9d 00 49 8b 16 49 81 c4 78 01 00 00 48 c7 c7 20 d6 09 8c 4c 89 ee 4c 89 e1 4c 8b 04 24 e8 38 3f f8 ff 90 <0f> 0b 90 90 e9 4a ff ff ff 89 d9 80 e1 07 80 c1 03 38 c1 0f 8c 09 RSP: 0018:ffffc90000bb77c0 EFLAGS: 00010046 RAX: 5c710a1b8e2d3500 RBX: ffff88802f455808 RCX: ffff88801e6a5a00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: 0000000000000008 R08: ffffffff817feaa2 R09: 1ffffffff1d026d4 R10: dffffc0000000000 R11: fffffbfff1d026d5 R12: ffff88801ac81578 R13: ffff88807c52d178 R14: ffff888020699018 R15: ffff888020699020 FS: 0000000000000000(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 0000000000000000 CR3: 000000005632e000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: start_flush_work kernel/workqueue.c:4162 [inline] __flush_work+0x286/0xc60 kernel/workqueue.c:4199 flush_work kernel/workqueue.c:4256 [inline] flush_delayed_work+0x169/0x1c0 kernel/workqueue.c:4278 hfs_file_fsync+0xea/0x140 fs/hfs/inode.c:680 generic_write_sync include/linux/fs.h:2952 [inline] dio_complete+0x55c/0x6b0 fs/direct-io.c:313 process_one_work kernel/workqueue.c:3229 [inline] process_scheduled_works+0xa66/0x1840 kernel/workqueue.c:3310 worker_thread+0x870/0xd30 kernel/workqueue.c:3391 kthread+0x7a9/0x920 kernel/kthread.c:464 ret_from_fork+0x4b/0x80 arch/x86/kernel/process.c:148 ret_from_fork_asm+0x1a/0x30 arch/x86/entry/entry_64.S:244 --- 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 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