BTRFS info (device loop0): last unmount of filesystem 24c7a497-3402-47dd-bef8-82358f5f30e0 ------------[ cut here ]------------ WARNING: CPU: 0 PID: 3910 at fs/btrfs/space-info.h:122 btrfs_space_info_update_bytes_may_use+0x2c3/0x6e0 Modules linked in: CPU: 0 PID: 3910 Comm: syz-executor.0 Not tainted 6.1.77-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/25/2024 RIP: 0010:btrfs_space_info_update_bytes_may_use+0x2c3/0x6e0 fs/btrfs/space-info.h:122 Code: 25 00 00 74 08 4c 89 ff e8 9a 00 36 fe 49 8b 1f 48 89 df 48 8b 6c 24 18 48 89 ee e8 27 95 de fd 48 39 eb 73 14 e8 3d 93 de fd <0f> 0b 45 31 f6 43 80 7c 25 00 00 75 ac eb b2 e8 29 93 de fd 43 80 RSP: 0000:ffffc90004e0f9f0 EFLAGS: 00010293 RAX: ffffffff83abe7e3 RBX: 00000000000df000 RCX: ffff88807db1bb80 RDX: 0000000000000000 RSI: 00000000000e0000 RDI: 00000000000df000 RBP: 00000000000e0000 R08: ffffffff83abe7d9 R09: fffffbfff1ce7f76 R10: 0000000000000000 R11: dffffc0000000001 R12: dffffc0000000000 R13: 1ffff1100437d80c R14: fffffffffff20000 R15: ffff888021bec060 FS: 000055555569a480(0000) GS:ffff8880b9800000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fb38093d100 CR3: 0000000067aa2000 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:154 [inline] block_rsv_release_bytes fs/btrfs/block-rsv.c:152 [inline] btrfs_block_rsv_release+0x477/0x550 fs/btrfs/block-rsv.c:296 btrfs_release_global_block_rsv+0x2f/0x250 fs/btrfs/block-rsv.c:469 btrfs_free_block_groups+0xa31/0xe20 fs/btrfs/block-group.c:4137 close_ctree+0x6db/0xc35 fs/btrfs/disk-io.c:4751 generic_shutdown_super+0x130/0x340 fs/super.c:501 kill_anon_super+0x37/0x60 fs/super.c:1117 btrfs_kill_super+0x3d/0x50 fs/btrfs/super.c:2449 deactivate_locked_super+0xa0/0x110 fs/super.c:332 cleanup_mnt+0x490/0x520 fs/namespace.c:1186 task_work_run+0x246/0x300 kernel/task_work.c:179 resume_user_mode_work include/linux/resume_user_mode.h:49 [inline] exit_to_user_mode_loop+0xde/0x100 kernel/entry/common.c:171 exit_to_user_mode_prepare+0xb1/0x140 kernel/entry/common.c:204 __syscall_exit_to_user_mode_work kernel/entry/common.c:286 [inline] syscall_exit_to_user_mode+0x60/0x270 kernel/entry/common.c:297 do_syscall_64+0x49/0xb0 arch/x86/entry/common.c:87 entry_SYSCALL_64_after_hwframe+0x63/0xcd RIP: 0033:0x7f6d0ca7de17 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:00007fffa19e92a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6 RAX: 0000000000000000 RBX: 0000000000000000 RCX: 00007f6d0ca7de17 RDX: 0000000000000000 RSI: 000000000000000a RDI: 00007fffa19e9360 RBP: 00007fffa19e9360 R08: 0000000000000000 R09: 0000000000000000 R10: 00000000ffffffff R11: 0000000000000246 R12: 00007fffa19ea420 R13: 00007f6d0cac73b9 R14: 00000000000142f3 R15: 0000000000000003