------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 8850 at fs/btrfs/volumes.c:3426 btrfs_remove_chunk+0x16a0/0x1ae8 fs/btrfs/volumes.c:3426 Modules linked in: CPU: 1 UID: 0 PID: 8850 Comm: syz.6.362 Not tainted 6.14.0-rc5-syzkaller-g77c95b8c7a16 #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025 pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--) pc : btrfs_remove_chunk+0x16a0/0x1ae8 fs/btrfs/volumes.c:3426 lr : btrfs_remove_chunk+0x16a0/0x1ae8 fs/btrfs/volumes.c:3426 sp : ffff8000a37b75e0 x29: ffff8000a37b77a0 x28: ffff0000d3afa800 x27: ffff8000a37b7700 x26: ffff0000f5d21624 x25: ffff0000c6fd8a00 x24: ffffffffffffffe4 x23: dfff800000000000 x22: ffff8000a37b76a0 x21: ffff0000f5d215c8 x20: dfff800000000000 x19: 0000000000000000 x18: 1fffe000366f6086 x17: ffff80008fbbd000 x16: ffff8000804696fc x15: 0000000000000001 x14: 1fffe0001b3b3aa0 x13: 0000000000000000 x12: 0000000000000000 x11: ffff60001b3b3aa1 x10: 1fffe0001b3b3aa0 x9 : 92aa263bdcfab000 x8 : 92aa263bdcfab000 x7 : ffff8000803d4bfc x6 : 0000000000000000 x5 : 0000000000000001 x4 : 0000000000000001 x3 : ffff8000803c76d0 x2 : 0000000000000001 x1 : 0000000000000004 x0 : 0000000000000001 Call trace: btrfs_remove_chunk+0x16a0/0x1ae8 fs/btrfs/volumes.c:3426 (P) btrfs_delete_unused_bgs+0x9d0/0xd14 fs/btrfs/block-group.c:1677 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:3100 [inline] path_mount+0xc0c/0xe04 fs/namespace.c:3879 do_mount fs/namespace.c:3900 [inline] __do_sys_mount fs/namespace.c:4111 [inline] __se_sys_mount fs/namespace.c:4088 [inline] __arm64_sys_mount+0x4f4/0x5d0 fs/namespace.c:4088 __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: 1482 hardirqs last enabled at (1481): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1533 [inline] hardirqs last enabled at (1481): [] finish_lock_switch+0xbc/0x1e4 kernel/sched/core.c:5132 hardirqs last disabled at (1482): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:488 softirqs last enabled at (1072): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:32 softirqs last disabled at (1070): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:19 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop6 state MA): dumping space info: BTRFS info (device loop6 state MA): space_info DATA+METADATA has 995328 free, is not full BTRFS info (device loop6 state MA): space_info total=3276800, used=53248, pinned=0, reserved=4096, may_use=2224128, readonly=0 zone_unusable=0 BTRFS info (device loop6 state MA): space_info SYSTEM has 8155136 free, is not full BTRFS info (device loop6 state MA): space_info total=12451840, used=4096, pinned=0, reserved=0, may_use=98304, readonly=4194304 zone_unusable=0 BTRFS info (device loop6 state MA): global_block_rsv: size 1441792 reserved 1437696 BTRFS info (device loop6 state MA): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop6 state MA): chunk_block_rsv: size 98304 reserved 98304 BTRFS info (device loop6 state MA): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop6 state MA): delayed_refs_rsv: size 262144 reserved 262144 BTRFS: error (device loop6 state MA) in btrfs_remove_chunk:3426: errno=-28 No space left