From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mail-io1-f80.google.com (mail-io1-f80.google.com [209.85.166.80]) (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 3D411181320 for ; Tue, 14 May 2024 20:23:33 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=209.85.166.80 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715718214; cv=none; b=MX4SIMBlOnTngKljeDfEjVaDF8hm81UWjxgS7d9QdiT7AWm9F/OEsS9CVwRSvJyGPypH/gZkTAZ6L+n+BqGDMwj0n280OWlNHrphg7wXWGXAKWJw9b1jclSvbGdXUFKLBVb6UBCWXceyZTXyTbwuZnDNhh2u2PG0OiQtczS1H38= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1715718214; c=relaxed/simple; bh=VTIB/7/r0A+xbsKG6d6v06OLFByjsDiqG8BqgoHWkcE=; h=MIME-Version:Date:Message-ID:Subject:From:To:Content-Type; b=WDOlXyjaxIA57vrBN6NVBnd/hOey0iNn/UOZfzmkKNmWPoGYJhQp8ZgJzRZnNU1YETI/368VwDlQUHdsjmp7P+yAAW4RX4+0LYHCN9mi2J8K0F8wm0rgs7UEqnadoSjwrff49Q9/toCC4tJVbMdsqnIPJ/KOGtB1e/RkVhgGJpw= 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=209.85.166.80 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-f80.google.com with SMTP id ca18e2360f4ac-7e1c22e7280so557586439f.0 for ; Tue, 14 May 2024 13:23:33 -0700 (PDT) X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1715718212; x=1716323012; h=to:from:subject:message-id:date:mime-version:x-gm-message-state :from:to:cc:subject:date:message-id:reply-to; bh=rq9iUgKR4TDRB9grFF21zTQBEC+sDHsGn0+DR4a1KJ8=; b=WmQFAdvAsygu3YapeL084o8pK/GrPYf8EGkiDD8PSGDkPTHI2KKnYhh5655dVwDdG+ 5jUSToGc4EzluLU5G+3ruCvvdc4d+Oiorn1cDhFxi+muM4DfBalrDgv595Ch7vOUipfF VVASgxfU4SGzPzEyAZo7RCtehT+V5m3zELpyiQ1cZLqNhLB/Fm8jZ4p0j4Yzg49Hr4ZO 3KcbBA4DHgREaZ0bNlqY+0wEBhww5Bt2A8FnE+lTK6cSMUz55cpgD3PahDnRA1pnd62g fJvHRQXLBV4zklycAXSliXmpheuPi7UOhniYISVs6Yd8Yk9iwn/F9qKBrkhe/DCj3tpG b1Bg== X-Forwarded-Encrypted: i=1; AJvYcCV1FQ9uaUmBKS6GMcWNHZLnylcsdXknbq+Eukp3YKXpfp8xjk/dpDbtCxkUdyUvBphEbfSWNhdjACrrKEDamhkwXP4ul9CpQpcU2DqT X-Gm-Message-State: AOJu0YxEFDSGQdLe+VnOVwWLJ5mqeB1YnHUfoU4tk7urHnp8l3+ykLKt 4a+0Orxbf9SIE+v4uAyj8keC+hQdS3FHmQsNQTsCP5nulpsVcH4LxP34yw7dKujOP5cGMpVAoh0 YbzNoHzQAseN6ib91VC+Qk0/AnPWIelvSQSETvLC9EREqLVeXutTfNQY= X-Google-Smtp-Source: AGHT+IHzyAjAze8ucBFpJ9ILU+skjgB+zENaWw3sMcBXYuE7KUnc9o3EAvaN8ewmpanBaAW+I9fbDxZJPHxkhwJT2Wrr5lMtKMdy Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Received: by 2002:a05:6638:248e:b0:488:7f72:b3ac with SMTP id 8926c6da1cb9f-489585764d4mr831595173.2.1715718212415; Tue, 14 May 2024 13:23:32 -0700 (PDT) Date: Tue, 14 May 2024 13:23:32 -0700 X-Google-Appengine-App-Id: s~syzkaller X-Google-Appengine-App-Id-Alias: syzkaller Message-ID: <00000000000096049806186fc6f9@google.com> Subject: [syzbot] [btrfs?] general protection fault in btrfs_stop_all_workers (2) 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: f03359bca01b Merge tag 'for-6.9-rc6-tag' of git://git.kern.. git tree: upstream console output: https://syzkaller.appspot.com/x/log.txt?x=17a0fbc4980000 kernel config: https://syzkaller.appspot.com/x/.config?x=3310e643b6ef5d69 dashboard link: https://syzkaller.appspot.com/bug?extid=05fd41caa517e957851d compiler: gcc (Debian 12.2.0-14) 12.2.0, 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/1b4deeb2639b/disk-f03359bc.raw.xz vmlinux: https://storage.googleapis.com/syzbot-assets/f3c3d98db8ef/vmlinux-f03359bc.xz kernel image: https://storage.googleapis.com/syzbot-assets/6f79ee1ae20f/bzImage-f03359bc.xz IMPORTANT: if you fix the issue, please add the following tag to the commit: Reported-by: syzbot+05fd41caa517e957851d@syzkaller.appspotmail.com BTRFS info (device loop2): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf general protection fault, probably for non-canonical address 0xe01ffbf11002a143: 0000 [#1] PREEMPT SMP KASAN PTI KASAN: maybe wild-memory-access in range [0x00ffff8880150a18-0x00ffff8880150a1f] CPU: 1 PID: 5087 Comm: syz-executor.2 Not tainted 6.9.0-rc6-syzkaller-00131-gf03359bca01b #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 RIP: 0010:__lock_acquire+0xe3e/0x3b30 kernel/locking/lockdep.c:5005 Code: 11 00 00 39 05 f3 80 de 11 0f 82 be 05 00 00 ba 01 00 00 00 e9 e4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 1f 00 00 49 81 3c 24 a0 2c a1 92 0f 84 98 f2 RSP: 0018:ffffc9000327f938 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 001ffff11002a143 RSI: ffff888029405a00 RDI: 00ffff8880150a18 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8f9f4fd7 R11: 0000000000000001 R12: 00ffff8880150a18 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 000055556dc0c480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c002bb5000 CR3: 00000000668d6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: lock_acquire kernel/locking/lockdep.c:5754 [inline] lock_acquire+0x1b1/0x560 kernel/locking/lockdep.c:5719 __raw_spin_lock_irq include/linux/spinlock_api_smp.h:119 [inline] _raw_spin_lock_irq+0x36/0x50 kernel/locking/spinlock.c:170 put_pwq_unlocked kernel/workqueue.c:1671 [inline] put_pwq_unlocked kernel/workqueue.c:1664 [inline] destroy_workqueue+0x5df/0xaa0 kernel/workqueue.c:5739 btrfs_stop_all_workers+0x29f/0x370 fs/btrfs/disk-io.c:1800 close_ctree+0x4e3/0xfd0 fs/btrfs/disk-io.c:4371 generic_shutdown_super+0x159/0x3d0 fs/super.c:641 kill_anon_super+0x3a/0x60 fs/super.c:1225 btrfs_kill_super+0x3b/0x50 fs/btrfs/super.c:2091 deactivate_locked_super+0xbe/0x1a0 fs/super.c:472 deactivate_super+0xde/0x100 fs/super.c:505 cleanup_mnt+0x222/0x450 fs/namespace.c:1267 task_work_run+0x14e/0x250 kernel/task_work.c:180 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:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline] syscall_exit_to_user_mode+0x278/0x2a0 kernel/entry/common.c:218 do_syscall_64+0xdc/0x260 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7f53b047f057 Code: b0 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 b0 ff ff ff f7 d8 64 89 02 b8 RSP: 002b:00007ffdaeab7cf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f53b047f057 RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffdaeab7db0 RBP: 00007ffdaeab7db0 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffdaeab8e70 R13: 00007f53b04c93b9 R14: 000000000001ac84 R15: 0000000000000007 Modules linked in: ---[ end trace 0000000000000000 ]--- RIP: 0010:__lock_acquire+0xe3e/0x3b30 kernel/locking/lockdep.c:5005 Code: 11 00 00 39 05 f3 80 de 11 0f 82 be 05 00 00 ba 01 00 00 00 e9 e4 00 00 00 48 b8 00 00 00 00 00 fc ff df 4c 89 e2 48 c1 ea 03 <80> 3c 02 00 0f 85 82 1f 00 00 49 81 3c 24 a0 2c a1 92 0f 84 98 f2 RSP: 0018:ffffc9000327f938 EFLAGS: 00010002 RAX: dffffc0000000000 RBX: 0000000000000001 RCX: 0000000000000000 RDX: 001ffff11002a143 RSI: ffff888029405a00 RDI: 00ffff8880150a18 RBP: 0000000000000000 R08: 0000000000000001 R09: 0000000000000001 R10: ffffffff8f9f4fd7 R11: 0000000000000001 R12: 00ffff8880150a18 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000001 FS: 000055556dc0c480(0000) GS:ffff8880b9500000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000000c002bb5000 CR3: 00000000668d6000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 ---------------- Code disassembly (best guess): 0: 11 00 adc %eax,(%rax) 2: 00 39 add %bh,(%rcx) 4: 05 f3 80 de 11 add $0x11de80f3,%eax 9: 0f 82 be 05 00 00 jb 0x5cd f: ba 01 00 00 00 mov $0x1,%edx 14: e9 e4 00 00 00 jmp 0xfd 19: 48 b8 00 00 00 00 00 movabs $0xdffffc0000000000,%rax 20: fc ff df 23: 4c 89 e2 mov %r12,%rdx 26: 48 c1 ea 03 shr $0x3,%rdx * 2a: 80 3c 02 00 cmpb $0x0,(%rdx,%rax,1) <-- trapping instruction 2e: 0f 85 82 1f 00 00 jne 0x1fb6 34: 49 81 3c 24 a0 2c a1 cmpq $0xffffffff92a12ca0,(%r12) 3b: 92 3c: 0f .byte 0xf 3d: 84 .byte 0x84 3e: 98 cwtl 3f: f2 repnz --- 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