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: 4838 at fs/btrfs/volumes.c:3259 btrfs_remove_chunk+0x1364/0x18e8 fs/btrfs/volumes.c:3259 Modules linked in: CPU: 1 PID: 4838 Comm: syz.0.91 Not tainted 6.1.129-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 12/27/2024 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 : ffff800022a876a0 x29: ffff800022a87820 x28: ffff0000f54ad82c x27: ffff0000f54ad830 x26: dfff800000000000 x25: ffffffffffffffe4 x24: ffff0000d20a0270 x23: ffff700004550eec x22: 1fffe000197058c0 x21: ffff0000cb82c600 x20: 0000000000000000 x19: 0000000000000000 x18: 1fffe0003679cb76 x17: 0000000000000000 x16: ffff80001232163c x15: 0000000000000000 x14: 00000000ffffffff x13: 0000000000000001 x12: 0000000000000001 x11: 0000000000ff0100 x10: 0000000000000000 x9 : 7da4414b78c39200 x8 : 7da4414b78c39200 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff800022a86f98 x4 : ffff800015bd5320 x3 : ffff800008587574 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000000 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: 77514 hardirqs last enabled at (77513): [<ffff800008340490>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:261 hardirqs last disabled at (77514): [<ffff80001231d31c>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:405 softirqs last enabled at (77454): [<ffff8000081c40ac>] softirq_handle_end kernel/softirq.c:421 [inline] softirqs last enabled at (77454): [<ffff8000081c40ac>] handle_softirqs+0xb84/0xd58 kernel/softirq.c:606 softirqs last disabled at (77431): [<ffff800008020174>] __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