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 EEBFF2475E3 for ; Tue, 27 May 2025 10:42:33 +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=1748342555; cv=none; b=G6TMQf1Xh6UUpN11QYdEBAJjAxzOHQPlBVyLfzrUx7aWzaQ2xL246vk5yR9qS9v6ljYPimE8E1mlDFH3Y131ourkzFvguoecb5C+dNbqni6bTZMrRpfcZtnETBmXgSOxCoQ7db3QZ4O9HAqDDdhUi9BRWxr+Y7rzl6ka8MKLW7Y= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1748342555; c=relaxed/simple; bh=ylnWf94hRcWdF9suXgclvU2TBgd4dHED5ATVeOE78X8=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=Ujl730QqSpjiBx0VWGWo4jtiaEXF5KJiXTyy1jsBCSyEsNMCfrxoxxjhR8c1GclXz2MgGrn/6+WJ7sRgCcRWrQIkus7/FAav7nPZbKecYPmMzF8SG+gqWypStj4paxKjGePTu0CzP9XGJpE5DgVHbhkU0Vd93vwtx7MeLcfg3nY= 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-3dd78bfeac0so16871985ab.2 for ; Tue, 27 May 2025 03:42:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1748342553; x=1748947353; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=GGIsTS2/wv6irS0gyfFOTsWPvGOReKGkibrvBLKqwiE=; b=s8HIQTeo9ZTTv//7ccoXRTZFsCNN5RGQ3kaNQdFqQBL+NICLxSDxCymriOh8zQonfN mAxw6AJ0w7gHFPRbyMFdsOUoBAN2R2XWm4+oKHRBvGbYGo1Q5Pv87SMZz8LSKS5NNYBr TxR8SnEKJNwOJIlPSpEYD3gCEdK8y8LBbdCLaXy48orQcETTg5G8ZAtAvQlxg5BpEs5T 8jbz73BGVICcdKSjI2Og/+Zs31hMI3kaB1w1wD9lt+KzSF51AZWGo9UEuFkk1T5TvrR0 edqziYFL4qMBOplNsRbvSOEEfzzwN8lZyCJch7CP/ogo+dAu+Cslv5dQdkAnAHn6mwpQ ZvIg== X-Forwarded-Encrypted: i=1; AJvYcCUQ8EYPtA0D3J9bZcyB+kZOolSQ1xxz1xs+oG/JjFPENEJtbC0Hc98w6RbD9qegulxgPMAT@lists.linux.dev X-Gm-Message-State: AOJu0YwivLA9eOfmeGN9z8hpl37/CYjyRpeqSL2wWQu4qo08TGaHFcqF FQng8CkhM4PNHLU2SJhWEe08IDrZQ6XLt/vHUzlafBhgG/0mpQwsQoKGkOm9o5v1Wp30FjN7O1T 2XRMkvsRiwQDfZ4zo3/vmJABalb8v+PyQrGWnkfy/zJ70lws5fENa/u27Do0= X-Google-Smtp-Source: AGHT+IFDCtCDx4Vqo4IhyglYRG3TOIGyhhy1uH3mWj6eEwwTD74jWnMD9gubSNOGF8mEm2mNVoBUPGCdtwfFJCxk3+BMxrMmJlRV Precedence: bulk X-Mailing-List: gfs2@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:2221:b0:3dc:7d79:1a5c with SMTP id e9e14a558f8ab-3dc9b7097f0mr110772535ab.20.1748342553057; Tue, 27 May 2025 03:42:33 -0700 (PDT) Date: Tue, 27 May 2025 03:42:33 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <68359719.a70a0220.253bc2.00ae.GAE@google.com> Subject: [syzbot] [gfs2?] WARNING in gfs2_put_super From: syzbot To: agruenba@redhat.com, gfs2@lists.linux.dev, 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: 176e917e010c Add linux-next specific files for 20250523 git tree: linux-next console output: https://syzkaller.appspot.com/x/log.txt?x=14389170580000 kernel config: https://syzkaller.appspot.com/x/.config?x=e7902c752bef748 dashboard link: https://syzkaller.appspot.com/bug?extid=56182be23469e01affbc compiler: Debian clang version 20.1.6 (++20250514063057+1e4d39e07757-1~exp1~20250514183223.118), Debian LLD 20.1.6 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/5f7692c642fa/disk-176e917e.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/057a442d42d0/vmlinux-176e917e.xz kernel image: https://storage.googleapis.com/syzbot-assets/8f8ebdb4dd96/bzImage-176e917e.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+56182be23469e01affbc@syzkaller.appspotmail.com ------------[ cut here ]------------ WARNING: CPU: 0 PID: 13525 at fs/gfs2/super.c:608 gfs2_put_super+0x912/0x950 fs/gfs2/super.c:608 Modules linked in: CPU: 0 UID: 0 PID: 13525 Comm: syz-executor Not tainted 6.15.0-rc7-next-20250523-syzkaller #0 PREEMPT(full) Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025 RIP: 0010:gfs2_put_super+0x912/0x950 fs/gfs2/super.c:608 Code: ff e8 42 f2 f8 ff 4c 89 ff e8 5a 30 00 00 4c 89 ff 48 83 c4 38 5b 41 5c 41 5d 41 5e 41 5f 5d e9 44 1e fc ff e8 df 34 c8 fd 90 <0f> 0b 90 e9 4d fa ff ff e8 d1 34 c8 fd e9 9c f9 ff ff 44 89 f1 80 RSP: 0018:ffffc90004e77cb0 EFLAGS: 00010293 RAX: ffffffff83f80e51 RBX: 0000000000000000 RCX: ffff888029499e00 RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000 RBP: ffff888035c58818 R08: ffff888035c580af R09: 1ffff11006b8b015 R10: dffffc0000000000 R11: ffffed1006b8b016 R12: ffff888035c580a8 R13: ffff888035c58818 R14: 0000000000000800 R15: ffff888035c58000 FS: 0000555586d88500(0000) GS:ffff888125c56000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8ca2c3f000 CR3: 0000000041d1c000 CR4: 00000000003526f0 DR0: 0000000000000000 DR1: 000000000000f978 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: generic_shutdown_super+0x135/0x2c0 fs/super.c:643 kill_block_super+0x44/0x90 fs/super.c:1753 deactivate_locked_super+0xb9/0x130 fs/super.c:474 cleanup_mnt+0x425/0x4c0 fs/namespace.c:1417 task_work_run+0x1d4/0x260 kernel/task_work.c:227 resume_user_mode_work include/linux/resume_user_mode.h:50 [inline] exit_to_user_mode_loop+0xec/0x110 kernel/entry/common.c:114 exit_to_user_mode_prepare include/linux/entry-common.h:330 [inline] syscall_exit_to_user_mode_work include/linux/entry-common.h:414 [inline] syscall_exit_to_user_mode include/linux/entry-common.h:449 [inline] do_syscall_64+0x2bd/0x3b0 arch/x86/entry/syscall_64.c:100 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f9a3158fc97 Code: a8 ff ff ff f7 d8 64 89 01 48 83 c8 ff c3 0f 1f 44 00 00 31 f6 e9 09 00 00 00 66 0f 1f 84 00 00 00 00 00 b8 a6 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 01 c3 48 c7 c2 a8 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffdc6205458 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 00007f9a3161089d RCX: 00007f9a3158fc97 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdc6205510 RBP: 00007ffdc6205510 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdc62065a0 R13: 00007f9a3161089d R14: 0000000000109e74 R15: 00007ffdc62065e0 --- 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