BTRFS info (device loop4): balance: start -s ------------[ cut here ]------------ WARNING: CPU: 1 PID: 6098 at fs/btrfs/block-group.c:2421 btrfs_create_pending_block_groups+0xba4/0xebc fs/btrfs/block-group.c:2421 Modules linked in: CPU: 1 PID: 6098 Comm: syz-executor.4 Not tainted 5.15.157-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/27/2024 pstate: 60401005 (nZCv daif +PAN -UAO -TCO -DIT +SSBS BTYPE=--) pc : btrfs_create_pending_block_groups+0xba4/0xebc fs/btrfs/block-group.c:2421 lr : btrfs_create_pending_block_groups+0xba4/0xebc fs/btrfs/block-group.c:2421 sp : ffff80001cd67460 x29: ffff80001cd676a0 x28: ffff0000d7c71440 x27: ffff0000da0a31b0 x26: ffff0000dc0c4f78 x25: ffff0000da0a3050 x24: dfff800000000000 x23: 1fffe0001b41460b x22: 1fffe0001b41460a x21: ffff0000d7c719d0 x20: ffff0000da0a3058 x19: 00000000ffffffe4 x18: 0000000000000001 x17: 0000000000000002 x16: ffff800011997d7c x15: 00000000ffffffff x14: ffff0000c1088000 x13: 0000000000000001 x12: 0000000000040000 x11: 000000000003ffff x10: ffff80001dfdf000 x9 : a0e70f82dccabc00 x8 : a0e70f82dccabc00 x7 : 0000000000000001 x6 : 0000000000000001 x5 : ffff80001cd66bd8 x4 : ffff800014a1f7c0 x3 : ffff800008550224 x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026 Call trace: btrfs_create_pending_block_groups+0xba4/0xebc fs/btrfs/block-group.c:2421 __btrfs_end_transaction+0x13c/0x610 fs/btrfs/transaction.c:1014 btrfs_end_transaction+0x24/0x34 fs/btrfs/transaction.c:1050 btrfs_inc_block_group_ro+0x4dc/0x54c fs/btrfs/block-group.c:2644 btrfs_relocate_block_group+0x2c0/0x8bc fs/btrfs/relocation.c:4041 btrfs_relocate_chunk+0xb8/0x280 fs/btrfs/volumes.c:3289 __btrfs_balance+0x1214/0x1e20 fs/btrfs/volumes.c:4029 btrfs_balance+0xaa8/0x111c fs/btrfs/volumes.c:4419 btrfs_ioctl_balance+0x50c/0x7b4 fs/btrfs/ioctl.c:4152 btrfs_ioctl+0x8d4/0xa5c fs/btrfs/ioctl.c:5012 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:874 [inline] __se_sys_ioctl fs/ioctl.c:860 [inline] __arm64_sys_ioctl+0x14c/0x1c8 fs/ioctl.c:860 __invoke_syscall arch/arm64/kernel/syscall.c:38 [inline] invoke_syscall+0x98/0x2b8 arch/arm64/kernel/syscall.c:52 el0_svc_common+0x138/0x258 arch/arm64/kernel/syscall.c:142 do_el0_svc+0x58/0x14c arch/arm64/kernel/syscall.c:181 el0_svc+0x7c/0x1f0 arch/arm64/kernel/entry-common.c:608 el0t_64_sync_handler+0x84/0xe4 arch/arm64/kernel/entry-common.c:626 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584 irq event stamp: 87700 hardirqs last enabled at (87699): [] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257 hardirqs last disabled at (87700): [] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396 softirqs last enabled at (87418): [] local_bh_enable+0x10/0x34 include/linux/bottom_half.h:31 softirqs last disabled at (87416): [] local_bh_disable+0x10/0x34 include/linux/bottom_half.h:18 ---[ end trace d03dd4529090d9ea ]--- BTRFS: error (device loop4) in btrfs_create_pending_block_groups:2421: errno=-28 No space left BTRFS info (device loop4): forced readonly BTRFS: error (device loop4) in btrfs_create_pending_block_groups:2432: errno=-28 No space left BTRFS: error (device loop4) in add_block_group_free_space:1315: errno=-28 No space left BTRFS info (device loop4): balance: ended with status: -30