BTRFS: device fsid c9fe44da-de57-406a-8241-57ec7d4412cf devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.44 (7663) ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 7663 at fs/btrfs/volumes.c:3365 btrfs_remove_chunk+0x14a8/0x1e0c fs/btrfs/volumes.c:3365 Modules linked in: CPU: 1 UID: 0 PID: 7663 Comm: syz.0.44 Not tainted syzkaller #0 PREEMPT Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 10/03/2025 pstate: 63400005 (nZCv daif +PAN -UAO +TCO +DIT -SSBS BTYPE=--) pc : btrfs_remove_chunk+0x14a8/0x1e0c fs/btrfs/volumes.c:3365 lr : btrfs_remove_chunk+0x14a8/0x1e0c fs/btrfs/volumes.c:3365 sp : ffff80009bf87700 x29: ffff80009bf87880 x28: dfff800000000000 x27: ffff80009bf87780 x26: ffff7000137f0ef0 x25: dfff800000000000 x24: ffff0000f2af1500 x23: ffffffffffffffe4 x22: dfff800000000000 x21: ffff0000defd8378 x20: 0000000000000000 x19: 0000000000000000 x18: 00000000ffffffff x17: ffff800093303000 x16: ffff800082deb6c0 x15: 0000000000000001 x14: 1ffff000137f0e54 x13: 0000000000000000 x12: 0000000000000000 x11: ffff7000137f0e55 x10: 0000000000ff0100 x9 : 0184bd0917ac6300 x8 : 0184bd0917ac6300 x7 : ffff800080564a40 x6 : 0000000000000000 x5 : 0000000000000000 x4 : 0000000000000000 x3 : ffff8000807d6130 x2 : 0000000000000002 x1 : 0000000100000000 x0 : 0000000000000000 Call trace: btrfs_remove_chunk+0x14a8/0x1e0c fs/btrfs/volumes.c:3365 (P) btrfs_relocate_chunk+0x258/0x54c fs/btrfs/volumes.c:3496 __btrfs_balance+0x1358/0x1d30 fs/btrfs/volumes.c:4227 btrfs_balance+0x8cc/0xf58 fs/btrfs/volumes.c:4604 btrfs_ioctl_balance+0x350/0x550 fs/btrfs/ioctl.c:3577 btrfs_ioctl+0xb04/0xc3c fs/btrfs/ioctl.c:5313 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:597 [inline] __se_sys_ioctl fs/ioctl.c:583 [inline] __arm64_sys_ioctl+0x14c/0x1c4 fs/ioctl.c:583 __invoke_syscall arch/arm64/kernel/syscall.c:35 [inline] invoke_syscall+0x98/0x254 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+0x5c/0x254 arch/arm64/kernel/entry-common.c:746 el0t_64_sync_handler+0x84/0x12c arch/arm64/kernel/entry-common.c:765 el0t_64_sync+0x198/0x19c arch/arm64/kernel/entry.S:596 irq event stamp: 49676 hardirqs last enabled at (49675): [] irqentry_exit+0xd8/0x108 kernel/entry/common.c:214 hardirqs last disabled at (49676): [] el1_brk64+0x20/0x54 arch/arm64/kernel/entry-common.c:434 softirqs last enabled at (49618): [] softirq_handle_end kernel/softirq.c:468 [inline] softirqs last enabled at (49618): [] handle_softirqs+0xaf8/0xc88 kernel/softirq.c:650 softirqs last disabled at (49599): [] __do_softirq+0x14/0x20 kernel/softirq.c:656 ---[ end trace 0000000000000000 ]--- BTRFS: error (device loop0 state A) in btrfs_remove_chunk:3365: errno=-28 No space left