------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 0 PID: 7161 at fs/btrfs/volumes.c:3409 btrfs_remove_chunk+0x14a4/0x18c8 fs/btrfs/volumes.c:3409 Modules linked in: CPU: 0 UID: 0 PID: 7161 Comm: syz.3.117 Tainted: G W 6.13.0-rc6-syzkaller-g6251d1776bc5 #0 Tainted: [W]=WARN 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+0x14a4/0x18c8 fs/btrfs/volumes.c:3409 lr : btrfs_remove_chunk+0x14a4/0x18c8 fs/btrfs/volumes.c:3409 sp : ffff8000a1b27600 x29: ffff8000a1b27780 x28: 0000000000100000 x27: ffff0000dfa67188 x26: dfff800000000000 x25: ffff0000c72e2d00 x24: ffffffffffffffe4 x23: dfff800000000000 x22: ffff700014364ed8 x21: ffff0000dfa67128 x20: 0000000000000003 x19: 0000000000000000 x18: 1fffe000366fc67e x17: ffff80008f99d000 x16: ffff80008046323c x15: 0000000000000001 x14: 1fffe0001b70d630 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b70d631 x10: 1fffe0001b70d630 x9 : 8d8243fc052c8800 x8 : 8d8243fc052c8800 x7 : ffff8000803d02d8 x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000803c2de4 x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: btrfs_remove_chunk+0x14a4/0x18c8 fs/btrfs/volumes.c:3409 (P) btrfs_delete_unused_bgs+0x9d4/0xd18 fs/btrfs/block-group.c:1681 btrfs_remount_ro fs/btrfs/super.c:1357 [inline] btrfs_reconfigure+0x8fc/0x23f0 fs/btrfs/super.c:1538 reconfigure_super+0x1d0/0x6e8 fs/super.c:1083 do_remount fs/namespace.c:3047 [inline] path_mount+0xc0c/0xe04 fs/namespace.c:3826 do_mount fs/namespace.c:3847 [inline] __do_sys_mount fs/namespace.c:4057 [inline] __se_sys_mount fs/namespace.c:4034 [inline] __arm64_sys_mount+0x4d4/0x5ac fs/namespace.c:4034 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:49 el0_svc_common+0x130/0x23c arch/arm64/kernel/syscall.c:132 do_el0_svc+0x48/0x58 arch/arm64/kernel/syscall.c:151 el0_svc+0x54/0x168 arch/arm64/kernel/entry-common.c:744 el0t_64_sync_handler+0x84/0x108 arch/arm64/kernel/entry-common.c:762 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:600 irq event stamp: 1190 hardirqs last enabled at (1189): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1535 [inline] hardirqs last enabled at (1189): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5123 hardirqs last disabled at (1190): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (1182): [] softirq_handle_end kernel/softirq.c:407 [inline] softirqs last enabled at (1182): [] handle_softirqs+0xb44/0xd34 kernel/softirq.c:589 softirqs last disabled at (1161): [] __do_softirq+0x14/0x20 kernel/softirq.c:595 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop3 state MA): dumping space info: BTRFS info (device loop3 state MA): space_info DATA+METADATA has 995328 free, is not full BTRFS info (device loop3 state MA): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=2224128, readonly=0 zone_unusable=0 BTRFS info (device loop3 state MA): space_info SYSTEM has 0 free, is not full BTRFS info (device loop3 state MA): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=0, readonly=12447744 zone_unusable=0 BTRFS info (device loop3 state MA): global_block_rsv: size 1441792 reserved 1437696 BTRFS info (device loop3 state MA): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop3 state MA): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop3 state MA): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop3 state MA): delayed_refs_rsv: size 262144 reserved 262144 BTRFS: error (device loop3 state MA) in btrfs_remove_chunk:3409: errno=-28 No space left