BTRFS info (device loop5): last unmount of filesystem c9fe44da-de57-406a-8241-57ec7d4412cf
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WARNING: CPU: 0 PID: 7639 at fs/btrfs/block-rsv.c:466 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466
Modules linked in:
CPU: 0 UID: 0 PID: 7639 Comm: syz.5.143 Not tainted 6.16.0-rc7-syzkaller-g82af5ea7c611 #0 PREEMPT 
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 06/18/2025
pstate: 83400005 (Nzcv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--)
pc : btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466
lr : btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466
sp : ffff80009dfd7440
x29: ffff80009dfd7440 x28: 1fffe0001ba9152c x27: dfff800000000000
x26: ffff0000dd48b9c0 x25: 0000000000000001 x24: ffff0000dd48a9a8
x23: ffff0000dd48a800 x22: 0000000000000000 x21: dfff800000000000
x20: 0000000000000000 x19: fffffffffffe0000 x18: 1fffe000337d1c76
x17: ffff80008f67e000 x16: ffff80008052b68c x15: 0000000000000001
x14: 1fffe0001ba91604 x13: 0000000000000000 x12: 0000000000000000
x11: ffff60001ba91605 x10: 0000000000ff0100 x9 : 0000000000000000
x8 : ffff000105e88000 x7 : ffff8000824e6bdc x6 : 0000000000000000
x5 : 0000000000000000 x4 : 0000000000000001 x3 : ffff80008052b794
x2 : 0000000000000001 x1 : fffffffffffe0000 x0 : 0000000000000000
Call trace:
 btrfs_release_global_block_rsv+0x224/0x22c fs/btrfs/block-rsv.c:466 (P)
 btrfs_free_block_groups+0xa48/0xd0c fs/btrfs/block-group.c:4557
 close_ctree+0x64c/0xb48 fs/btrfs/disk-io.c:4426
 btrfs_put_super+0x70/0x80 fs/btrfs/super.c:74
 generic_shutdown_super+0x12c/0x2b8 fs/super.c:643
 kill_anon_super+0x4c/0x7c fs/super.c:1282
 btrfs_kill_super+0x40/0x58 fs/btrfs/super.c:2095
 deactivate_locked_super+0xc4/0x12c fs/super.c:474
 deactivate_super+0xe0/0x100 fs/super.c:507
 cleanup_mnt+0x31c/0x3ac fs/namespace.c:1417
 __cleanup_mnt+0x20/0x30 fs/namespace.c:1424
 task_work_run+0x1dc/0x260 kernel/task_work.c:227
 exit_task_work include/linux/task_work.h:40 [inline]
 do_exit+0x524/0x19fc kernel/exit.c:964
 do_group_exit+0x194/0x22c kernel/exit.c:1105
 get_signal+0x11dc/0x12f8 kernel/signal.c:3034
 do_signal+0x1c0/0x4434 arch/arm64/kernel/signal.c:1618
 do_notify_resume+0xb0/0x1f4 arch/arm64/kernel/entry-common.c:152
 exit_to_user_mode_prepare arch/arm64/kernel/entry-common.c:173 [inline]
 exit_to_user_mode arch/arm64/kernel/entry-common.c:182 [inline]
 el0_da+0xc4/0x164 arch/arm64/kernel/entry-common.c:698
 el0t_64_sync_handler+0x90/0x12c arch/arm64/kernel/entry-common.c:901
 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596
irq event stamp: 65080
hardirqs last  enabled at (65079): [<ffff800080c3ccc8>] kasan_quarantine_put+0x1a0/0x1c8 mm/kasan/quarantine.c:234
hardirqs last disabled at (65080): [<ffff80008aefc634>] el1_brk64+0x1c/0x48 arch/arm64/kernel/entry-common.c:574
softirqs last  enabled at (62330): [<ffff8000801fc608>] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32
softirqs last disabled at (62328): [<ffff8000801fc5d4>] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19
---[ end trace 0000000000000000 ]---