From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-il1-f199.google.com (mail-il1-f199.google.com [209.85.166.199]) (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 75833167D83 for ; Wed, 13 Nov 2024 15:32:23 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.199 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731511945; cv=none; b=PzziklUHMJsX7ky07Vi+/PR5Ndla2LyjxwAsIbCX4DIlRPrwrsl4LPB6jRmhMAXi8IdoCAYX3TCG7ws+MgUZxBQ5CmM3j2E5eWMGbJSOiHg9Ur/+7OrlqshVIk6WcbLrdsSibSJEE4p1FxWxqfxtdHBaEON4gACbu6OzV1KulhE= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1731511945; c=relaxed/simple; bh=cz4X2Ul+jZf2d9ttecwCoIMytroncE3J6S0B76MBUXo=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=s+Qw3/OFp5LyJoIidLCwiuiNSpkHrKl6nsklRV4DmC6u1+qWbxEBiJHnXbdBm0NXNTPEjBp7XTrVW+rSJS4NO120XIHDxQQfBg2TDL2xkXG21dDt1duqnV6cHpU1TQktEuarO32b2khdg3JhVK4BKjLmv/IfjijCc4ZDrKXzVnY= 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=209.85.166.199 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-f199.google.com with SMTP id e9e14a558f8ab-3a719b7325aso6081635ab.0 for ; Wed, 13 Nov 2024 07:32:23 -0800 (PST) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1731511942; x=1732116742; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=EUMXG3lbjeeWyC9tFJxlOYCguJIJWlyOxeQSFXRndY4=; b=DCVLh7aT7z9cURxUEDlv5VJ/5BtSKjTvat4AEkF2P7aagEDVr7M8oHoiyzHFJfP28l 9I6RZeXziFS//yawXeHBptVB8ezaoCxZbAL1xwGEQDpBwqLD0UpuUc3Roa2mFrBKbIfz TZH5RfoPVaOazofUsJ7qpxppm+dbDUeJAYqi4Z5G0RVmuxF8bEz4w2oSINKR9L3eUq6U e+InbMtN0z2G7Sltx7mVuVYvSecdlUM/JH7GrTVlJ7jjQHZe7fA/WiXhFHbNHU5YLzDp ahirm1Y8skeI4NxIAE1+kReslclk/CgDZ5HYF11nKubqrHSEsaoWhHG21rWJbC9kKII9 QxCw== X-Forwarded-Encrypted: i=1; AJvYcCWkIZ7KD8799mMMb+N6iFQ6nzLMU3Swx0zvx6G7ORhM5cWoE38AFjCFx8Mlb1jksXEWIHx/hGsgIZmxuA==@vger.kernel.org X-Gm-Message-State: AOJu0Yyq+J1itzQ6yFLbgpvyMm8C3+mJ+828Z9iSlhnaBJeLjpx1YA25 TWOW+xbw3VFF75NhCgregmperYEMY1JXuDASKTxUgwGD117yQmhw7RVtbS6I/bMQz8+RPOxHpCN N/r6MRkGBqkDszrCATUQu1WFqUYEyDVgxcBNyrwVcXzHCYtOMtZSnm8w= X-Google-Smtp-Source: AGHT+IGEDF33haZV9iQlj5U0rmVP006qyv92A1JcU3EUNHH2DfHy/JNrdzoWqJ8DDSmbhqxPNd4GwsT0ifVWoEfbw5y54g7EbP/R Precedence: bulk X-Mailing-List: linux-btrfs@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6e02:20ef:b0:3a6:c493:7395 with SMTP id e9e14a558f8ab-3a6f199ff2dmr250705525ab.5.1731511942581; Wed, 13 Nov 2024 07:32:22 -0800 (PST) Date: Wed, 13 Nov 2024 07:32:22 -0800 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <6734c686.050a0220.2a2fcc.002b.GAE@google.com> Subject: [syzbot] [btrfs?] BUG: unable to handle kernel paging request in btrfs_stop_all_workers From: syzbot To: clm@fb.com, dsterba@suse.com, josef@toxicpanda.com, linux-btrfs@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: baa007e8da32 Merge branch 'for-next/core' into for-kernelci git tree: git://git.kernel.org/pub/scm/linux/kernel/git/arm64/linux.git for-kernelci console output: https://syzkaller.appspot.com/x/log.txt?x=12df8130580000 kernel config: https://syzkaller.appspot.com/x/.config?x=9ce37d357fac206c dashboard link: https://syzkaller.appspot.com/bug?extid=828d8ee1e5e42c37d573 compiler: Debian clang version 15.0.6, GNU ld (GNU Binutils for Debian) 2.40 userspace arch: arm64 Unfortunately, I don't have any reproducer for this issue yet. Downloadable assets: disk image: https://storage.googleapis.com/syzbot-assets/091805c67446/disk-baa007e8.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/853803d703a2/vmlinux-baa007e8.xz kernel image: https://storage.googleapis.com/syzbot-assets/65373a9a8186/Image-baa007e8.gz.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+828d8ee1e5e42c37d573@syzkaller.appspotmail.com BTRFS info (device loop2): last unmount of filesystem 3a492a15-ac49-4ce6-945e-cef7a687c6c9 Unable to handle kernel paging request at virtual address f2ff9fffe0001824 KASAN: maybe wild-memory-access in range [0x9800ffff0000c120-0x9800ffff0000c127] Mem abort info: ESR = 0x0000000096000004 EC = 0x25: DABT (current EL), IL = 32 bits SET = 0, FnV = 0 EA = 0, S1PTW = 0 FSC = 0x04: level 0 translation fault Data abort info: ISV = 0, ISS = 0x00000004, ISS2 = 0x00000000 CM = 0, WnR = 0, TnD = 0, TagAccess = 0 GCS = 0, Overlay = 0, DirtyBit = 0, Xs = 0 [f2ff9fffe0001824] address between user and kernel address ranges Internal error: Oops: 0000000096000004 [#1] PREEMPT SMP Modules linked in: CPU: 1 UID: 0 PID: 6432 Comm: syz-executor Not tainted 6.12.0-rc7-syzkaller-gbaa007e8da32 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 804000c5 (Nzcv daIF +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : __lock_acquire+0xfc/0x77c8 kernel/locking/lockdep.c:5065 lr : lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 sp : ffff8000a2b47280 x29: ffff8000a2b47540 x28: ffff80008025cf24 x27: 0000000000000000 x26: ffff0001b365a4c0 x25: 0000000000000000 x24: 0000000000000001 x23: 0000000000000000 x22: 1ffff00011f020ba x21: 9800ffff0000c120 x20: 0000000000000001 x19: 0000000000000000 x18: 1fffe000366cb476 x17: ffff80008f80d000 x16: ffff8000830cd010 x15: 0000000000000001 x14: ffff80008f8105d8 x13: dfff800000000000 x12: ffff700014568e78 x11: ffff800080359190 x10: ffff80008f8105d4 x9 : 00000000000000f3 x8 : 13001fffe0001824 x7 : ffff80008025cf24 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000000 x1 : 0000000000000000 x0 : 9800ffff0000c120 Call trace: __lock_acquire+0xfc/0x77c8 kernel/locking/lockdep.c:5065 (P) lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 (L) lock_acquire+0x240/0x728 kernel/locking/lockdep.c:5825 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x58/0x70 kernel/locking/spinlock.c:170 put_pwq_unlocked kernel/workqueue.c:1662 [inline] destroy_workqueue+0x8d8/0xdc0 kernel/workqueue.c:5883 btrfs_stop_all_workers+0x10c/0x240 fs/btrfs/disk-io.c:1787 close_ctree+0x598/0xb3c fs/btrfs/disk-io.c:4362 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:75 generic_shutdown_super+0x12c/0x2bc fs/super.c:642 kill_anon_super+0x4c/0x7c fs/super.c:1237 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2114 deactivate_locked_super+0xc4/0x12c fs/super.c:473 deactivate_super+0xe0/0x100 fs/super.c:506 cleanup_mnt+0x34c/0x3dc fs/namespace.c:1373 __cleanup_mnt+0x20/0x30 fs/namespace.c:1380 task_work_run+0x230/0x2e0 kernel/task_work.c:239 exit_task_work include/linux/task_work.h:43 [inline] do_exit+0x4ec/0x1ad0 kernel/exit.c:939 do_group_exit+0x194/0x22c kernel/exit.c:1088 __do_sys_exit_group kernel/exit.c:1099 [inline] __se_sys_exit_group kernel/exit.c:1097 [inline] pid_child_should_wake+0x0/0x1dc kernel/exit.c:1097 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 Code: f007a5a8 b945d508 34008c88 d343fea8 (386d6908) ---[ end trace 0000000000000000 ]--- ---------------- Code disassembly (best guess): 0: f007a5a8 adrp x8, 0xf4b7000 4: b945d508 ldr w8, [x8, #1492] 8: 34008c88 cbz w8, 0x1198 c: d343fea8 lsr x8, x21, #3 * 10: 386d6908 ldrb w8, [x8, x13] <-- trapping instruction --- 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