------------[ cut here ]------------ WARNING: CPU: 1 PID: 11855 at fs/btrfs/volumes.c:3227 btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3227 Modules linked in: CPU: 1 PID: 11855 Comm: syz-executor356 Not tainted 6.1.115-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3227 lr : btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3227 sp : ffff8000255d75e0 x29: ffff8000255d7760 x28: 0000000000100000 x27: ffff0000cf3fb050 x26: dfff800000000000 x25: ffffffffffffffe4 x24: ffff0000c93c39c0 x23: ffff700004abaed4 x22: 1fffe0001a5dd060 x21: ffff0000d2ee8300 x20: 0000000000000006 x19: 0000000000000000 x18: 1fffe000367a3376 x17: ffff8000159cd000 x16: ffff8000083065fc x15: ffff0001b3d19bbc x14: 1ffff00002b3a0b0 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000003 x9 : 7c2269706605e000 x8 : 7c2269706605e000 x7 : ffff80000827db90 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff8000123ec6e0 x0 : ffff80019e3f6000 Call trace: btrfs_remove_chunk+0x1378/0x1904 fs/btrfs/volumes.c:3227 btrfs_delete_unused_bgs+0x9c0/0xd00 fs/btrfs/block-group.c:1528 btrfs_remount+0xb84/0x121c fs/btrfs/super.c:2076 legacy_reconfigure+0xfc/0x114 fs/fs_context.c:655 reconfigure_super+0x318/0x7a4 fs/super.c:977 do_remount fs/namespace.c:2712 [inline] path_mount+0xc70/0xe5c fs/namespace.c:3378 do_mount fs/namespace.c:3399 [inline] __do_sys_mount fs/namespace.c:3607 [inline] __se_sys_mount fs/namespace.c:3584 [inline] __arm64_sys_mount+0x45c/0x594 fs/namespace.c:3584 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2c0 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x64/0x218 arch/arm64/kernel/syscall.c:204 el0_svc+0x58/0x168 arch/arm64/kernel/entry-common.c:637 el0t_64_sync_handler+0x84/0xf0 arch/arm64/kernel/entry-common.c:655 el0t_64_sync+0x18c/0x190 arch/arm64/kernel/entry.S:585 irq event stamp: 2382 hardirqs last enabled at (2381): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (2381): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5000 hardirqs last disabled at (2382): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (2142): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (2140): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop1: state MA): dumping space info: BTRFS info (device loop1: state MA): space_info DATA+METADATA has 1798144 free, is not full BTRFS info (device loop1: state MA): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=1421312, readonly=0 zone_unusable=0 BTRFS info (device loop1: state MA): space_info SYSTEM has 8253440 free, is not full BTRFS info (device loop1: state MA): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=0, readonly=4194304 zone_unusable=0 BTRFS info (device loop1: state MA): global_block_rsv: size 1441792 reserved 1159168 BTRFS info (device loop1: state MA): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop1: state MA): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop1: state MA): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop1: state MA): delayed_refs_rsv: size 262144 reserved 0 BTRFS: error (device loop1: state MA) in btrfs_remove_chunk:3227: errno=-28 No space left