BTRFS info (device loop0: state EA): last unmount of filesystem e417788f-7a09-42b2-9266-8ddc5d5d35d2 ------------[ cut here ]------------ WARNING: CPU: 1 PID: 5402 at fs/btrfs/space-info.h:199 btrfs_space_info_update_bytes_may_use+0x2a0/0x610 fs/btrfs/space-info.h:199 Modules linked in: CPU: 1 PID: 5402 Comm: syz-executor.0 Not tainted 6.7.0-syzkaller-09928-g052d534373b7 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 11/17/2023 RIP: 0010:btrfs_space_info_update_bytes_may_use+0x2a0/0x610 fs/btrfs/space-info.h:199 Code: 00 00 74 08 4c 89 ff e8 ee e0 2f fe 49 8b 1f 48 89 df 48 8b 6c 24 20 48 89 ee e8 7b 50 d3 fd 48 39 eb 73 16 e8 61 4e d3 fd 90 <0f> 0b 90 45 31 f6 43 80 7c 25 00 00 75 aa eb b0 e8 4b 4e d3 fd 43 RSP: 0018:ffffc900051f7a00 EFLAGS: 00010293 RAX: ffffffff83bb9f9f RBX: 000000000015f000 RCX: ffff88807ccf8000 RDX: 0000000000000000 RSI: 0000000000160000 RDI: 000000000015f000 RBP: 0000000000160000 R08: ffffffff83bb9f95 R09: 1ffffffff1e03e4d R10: dffffc0000000000 R11: fffffbfff1e03e4e R12: dffffc0000000000 R13: 1ffff1100e6d8f0c R14: ffffffffffea0000 R15: ffff8880736c7860 FS: 0000555556201480(0000) GS:ffff8880b9900000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 000056437bdb2fd0 CR3: 000000001c3cb000 CR4: 00000000003506f0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400 Call Trace: btrfs_space_info_free_bytes_may_use fs/btrfs/space-info.h:231 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:154 [inline] btrfs_block_rsv_release+0x4fb/0x5f0 fs/btrfs/block-rsv.c:295 btrfs_release_global_block_rsv+0x33/0x270 fs/btrfs/block-rsv.c:451 btrfs_free_block_groups+0xc39/0x1070 fs/btrfs/block-group.c:4338 close_ctree+0x75a/0xd30 fs/btrfs/disk-io.c:4375 generic_shutdown_super+0x132/0x2c0 fs/super.c:646 kill_anon_super+0x3b/0x70 fs/super.c:1230 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2085 deactivate_locked_super+0xc1/0x130 fs/super.c:477 cleanup_mnt+0x426/0x4c0 fs/namespace.c:1267 task_work_run+0x24a/0x300 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:108 [inline] exit_to_user_mode_prepare include/linux/entry-common.h:328 [inline] __syscall_exit_to_user_mode_work kernel/entry/common.c:201 [inline] syscall_exit_to_user_mode+0x167/0x370 kernel/entry/common.c:212 do_syscall_64+0x102/0x230 arch/x86/entry/common.c:89 entry_SYSCALL_64_after_hwframe+0x63/0x6b RIP: 0033:0x7f77cd67dc07 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:00007ffe9400edc8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f77cd67dc07 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007ffe9400ee80 RBP: 00007ffe9400ee80 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffe9400ff40 R13: 00007f77cd6d7af2 R14: 000000000001c328 R15: 0000000000000004