BTRFS info (device loop2): last unmount of filesystem eec7a1ff-fd3d-4b31-a136-2183fd294382
VFS: Busy inodes after unmount of loop2 (btrfs)
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kernel BUG at fs/super.c:652!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP PTI
CPU: 0 UID: 0 PID: 5159 Comm: syz-executor Not tainted 6.12.0-rc7-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:generic_shutdown_super+0x175/0x180 fs/super.c:650
Code: 41 5f c3 cc cc cc cc e8 a9 90 c6 ff 48 8b 43 28 48 81 c3 50 06 00 00 48 8b 10 48 c7 c7 cc fd d3 85 48 89 de e8 fc d1 47 03 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90002fe3df8 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff88811d4c6650 RCX: f34a0af2649d6b00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 000000000000003d R08: ffffffff81361ccf R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003
R13: 00000000fffffff8 R14: ffffffff820c6f70 R15: ffffffff851594a0
FS:  0000555583375500(0000) GS:ffff88813ba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000001b2dd5ffff CR3: 000000010ac5e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 kill_anon_super+0x1e/0x40 fs/super.c:1237
 btrfs_kill_super+0x1e/0x30 fs/btrfs/super.c:2112
 deactivate_locked_super+0x5c/0xd0 fs/super.c:473
 cleanup_mnt+0x19d/0x200 fs/namespace.c:1373
 task_work_run+0x103/0x140 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:328 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0xc6/0x230 kernel/entry/common.c:218
 do_syscall_64+0xed/0x220 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f46e8f7fb47
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:00007ffc69e9d298 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f46e8f7fb47
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffc69e9d350
RBP: 00007ffc69e9d350 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffc69e9e3d0
R13: 00007f46e8ff15fc R14: 0000000000029934 R15: 00007ffc69e9e410
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:generic_shutdown_super+0x175/0x180 fs/super.c:650
Code: 41 5f c3 cc cc cc cc e8 a9 90 c6 ff 48 8b 43 28 48 81 c3 50 06 00 00 48 8b 10 48 c7 c7 cc fd d3 85 48 89 de e8 fc d1 47 03 90 <0f> 0b 66 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90 90 90 90 90
RSP: 0018:ffffc90002fe3df8 EFLAGS: 00010246
RAX: 000000000000002f RBX: ffff88811d4c6650 RCX: f34a0af2649d6b00
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: 000000000000003d R08: ffffffff81361ccf R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000003
R13: 00000000fffffff8 R14: ffffffff820c6f70 R15: ffffffff851594a0
FS:  0000555583375500(0000) GS:ffff88813bb00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007ffd03768748 CR3: 000000010ac5e000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400