BTRFS critical (device loop0): entry offset 1060864, bytes 4182016, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 2 blocks of free space at or bigger than bytes is ------------[ cut here ]------------ WARNING: CPU: 1 PID: 4643 at fs/btrfs/volumes.c:3259 btrfs_remove_chunk+0x1364/0x18e8 fs/btrfs/volumes.c:3259 Modules linked in: CPU: 1 PID: 4643 Comm: syz.0.55 Not tainted 6.1.131-syzkaller #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+0x1364/0x18e8 fs/btrfs/volumes.c:3259 lr : btrfs_remove_chunk+0x1364/0x18e8 fs/btrfs/volumes.c:3259 sp : ffff800022ff76a0 x29: ffff800022ff7820 x28: ffff0000e112497c x27: ffff0000e1124980 x26: dfff800000000000 x25: ffffffffffffffe4 x24: ffff0000f00c35b0 x23: ffff7000045feeec x22: 1fffe0001a2c4c00 x21: ffff0000d1626000 x20: 0000000000000000 x19: 0000000000000000 x18: 1fffe0003679c776 x17: ffff800015afd000 x16: ffff800008302738 x15: ffff0001b3ce3bbc x14: 1ffff00002b600b2 x13: dfff800000000000 x12: 0000000000000003 x11: 0000000000ff0100 x10: 0000000000000003 x9 : efe09c8b2b52e200 x8 : efe09c8b2b52e200 x7 : ffff800008279314 x6 : 0000000000000000 x5 : 0000000000000080 x4 : 0000000000000001 x3 : 0000000000000000 x2 : 0000000000000006 x1 : ffff80001248d5c0 x0 : ffff80019e28f000 Call trace: btrfs_remove_chunk+0x1364/0x18e8 fs/btrfs/volumes.c:3259 btrfs_relocate_chunk+0x260/0x368 fs/btrfs/volumes.c:3389 __btrfs_balance+0x1468/0x1dc8 fs/btrfs/volumes.c:4092 btrfs_balance+0xa38/0xe40 fs/btrfs/volumes.c:4468 btrfs_ioctl_balance+0x3e4/0x778 fs/btrfs/ioctl.c:4531 btrfs_ioctl+0x72c/0xb08 fs/btrfs/ioctl.c:5570 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:870 [inline] __se_sys_ioctl fs/ioctl.c:856 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:856 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2bc arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:140 do_el0_svc+0x58/0x13c 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: 78046 hardirqs last enabled at (78045): [] raw_spin_rq_unlock_irq kernel/sched/sched.h:1367 [inline] hardirqs last enabled at (78045): [] finish_lock_switch+0xbc/0x1e8 kernel/sched/core.c:5002 hardirqs last disabled at (78046): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (77996): [] softirq_handle_end kernel/softirq.c:421 [inline] softirqs last enabled at (77996): [] handle_softirqs+0xb84/0xd58 kernel/softirq.c:606 softirqs last disabled at (77989): [] __do_softirq+0x14/0x20 kernel/softirq.c:612 ---[ end trace 0000000000000000 ]--- BTRFS info (device loop0: state A): dumping space info: BTRFS info (device loop0: state A): space_info DATA+METADATA has 7962624 free, is not full BTRFS info (device loop0: state A): space_info total=11534336, used=61440, pinned=0, reserved=8192, may_use=1863680, readonly=1638400 zone_unusable=0 BTRFS info (device loop0: state A): space_info SYSTEM has 4190208 free, is not full BTRFS info (device loop0: state A): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=0 zone_unusable=0 BTRFS info (device loop0: state A): global_block_rsv: size 1441792 reserved 1437696 BTRFS info (device loop0: state A): trans_block_rsv: size 262144 reserved 262144 BTRFS info (device loop0: state A): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0: state A): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0: state A): delayed_refs_rsv: size 524288 reserved 163840 BTRFS: error (device loop0: state A) in btrfs_remove_chunk:3259: errno=-28 No space left BTRFS info (device loop0: state EA): forced readonly BTRFS info (device loop0: state EA): 1 enospc errors during balance BTRFS info (device loop0: state EA): balance: ended with status: -30