BTRFS info (device loop2): last unmount of filesystem 395ef67a-297e-477c-816d-cd80a5b93e5d
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WARNING: CPU: 1 PID: 5830 at fs/btrfs/block-rsv.c:455 btrfs_release_global_block_rsv+0x261/0x270 fs/btrfs/block-rsv.c:455
Modules linked in:
CPU: 1 UID: 0 PID: 5830 Comm: syz-executor Not tainted 6.14.0-rc6-syzkaller-00202-ga29967be967e #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:btrfs_release_global_block_rsv+0x261/0x270 fs/btrfs/block-rsv.c:455
Code: 0f 0b 90 e9 0c ff ff ff e8 9c 0a b7 fd 90 0f 0b 90 e9 36 ff ff ff e8 8e 0a b7 fd 90 0f 0b 90 e9 67 ff ff ff e8 80 0a b7 fd 90 <0f> 0b 90 eb 89 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90 90 90
RSP: 0000:ffffc90004087ad8 EFLAGS: 00010293
RAX: ffffffff840ad4f0 RBX: ffffffffffff0000 RCX: ffff8880619c0000
RDX: 0000000000000000 RSI: ffffffffffff0000 RDI: 0000000000000000
RBP: 0000000000000001 R08: ffffffff840ad475 R09: 1ffff11006848f01
R10: dffffc0000000000 R11: ffffed1006848f02 R12: ffff888034247000
R13: ffff888034247058 R14: ffff8880594b0400 R15: dffffc0000000000
FS:  000055556abfc500(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f4dc47bb000 CR3: 0000000035546000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 btrfs_free_block_groups+0xc3c/0x1080 fs/btrfs/block-group.c:4464
 close_ctree+0x7b0/0xd90 fs/btrfs/disk-io.c:4458
 generic_shutdown_super+0x139/0x2d0 fs/super.c:642
 kill_anon_super+0x3b/0x70 fs/super.c:1237
 btrfs_kill_super+0x41/0x50 fs/btrfs/super.c:2100
 deactivate_locked_super+0xc4/0x130 fs/super.c:473
 cleanup_mnt+0x41f/0x4b0 fs/namespace.c:1413
 task_work_run+0x24f/0x310 kernel/task_work.c:227
 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:329 [inline]
 __syscall_exit_to_user_mode_work kernel/entry/common.c:207 [inline]
 syscall_exit_to_user_mode+0x13f/0x340 kernel/entry/common.c:218
 do_syscall_64+0x100/0x230 arch/x86/entry/common.c:89
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7fd48958e497
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:00007ffd294c5bf8 EFLAGS: 00000246 ORIG_RAX: 00000000000000a6
RAX: 0000000000000000 RBX: 00007fd48960e08c RCX: 00007fd48958e497
RDX: 0000000000000000 RSI: 0000000000000009 RDI: 00007ffd294c5cb0
RBP: 00007ffd294c5cb0 R08: 0000000000000000 R09: 0000000000000000
R10: 00000000ffffffff R11: 0000000000000246 R12: 00007ffd294c6d40
R13: 00007fd48960e08c R14: 000000000002253e R15: 00007ffd294c6d80
 </TASK>