BTRFS critical (device loop4): entry offset 8523776, bytes 8253440, bitmap no
BTRFS info (device loop4): block group has cluster?: no
BTRFS info (device loop4): 1 blocks of free space at or bigger than bytes is
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WARNING: CPU: 0 PID: 4325 at fs/btrfs/volumes.c:3253 btrfs_remove_chunk+0x1024/0x15a0 fs/btrfs/volumes.c:3253
Modules linked in:
CPU: 0 PID: 4325 Comm: syz.4.39 Not tainted 5.15.183-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 05/07/2025
pstate: 60400005 (nZCv daif +PAN -UAO -TCO -DIT -SSBS BTYPE=--)
pc : btrfs_remove_chunk+0x1024/0x15a0 fs/btrfs/volumes.c:3253
lr : btrfs_remove_chunk+0x1024/0x15a0 fs/btrfs/volumes.c:3253
sp : ffff80001f717680
x29: ffff80001f7177e0 x28: ffff0000ea3e6160 x27: ffff80001f717720
x26: dfff800000000000 x25: ffffffffffffffe4 x24: ffff0000ea3e61ac
x23: 0000000000100000 x22: ffff0000e974a200 x21: 0000000000f00000
x20: 00000000ffffffe4 x19: ffff0000ea3e61b8 x18: 0000000000000001
x17: 0000000000000002 x16: ffff8000111a3d3c x15: 00000000ffffffff
x14: 0000000000ff0100 x13: 0000000000000001 x12: 0000000000080000
x11: 000000000007ffff x10: ffff800026d8b000 x9 : dfd17b331ff1a200
x8 : dfd17b331ff1a200 x7 : 0000000000000001 x6 : 0000000000000001
x5 : ffff80001f716f78 x4 : ffff80001422f280 x3 : ffff80000850383c
x2 : 0000000000000001 x1 : 0000000100000000 x0 : 0000000000000026
Call trace:
 btrfs_remove_chunk+0x1024/0x15a0 fs/btrfs/volumes.c:3253
 btrfs_delete_unused_bgs+0x8b4/0xc74 fs/btrfs/block-group.c:1432
 btrfs_remount+0xb60/0x12b8 fs/btrfs/super.c:2000
 legacy_reconfigure+0xf8/0x110 fs/fs_context.c:634
 reconfigure_super+0x1d4/0x6f4 fs/super.c:938
 do_remount fs/namespace.c:2670 [inline]
 path_mount+0xc80/0x1000 fs/namespace.c:3336
 do_mount fs/namespace.c:3357 [inline]
 __do_sys_mount fs/namespace.c:3565 [inline]
 __se_sys_mount fs/namespace.c:3542 [inline]
 __arm64_sys_mount+0x514/0x5e4 fs/namespace.c:3542
 __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+0x78/0x1e0 arch/arm64/kernel/entry-common.c:608
 el0t_64_sync_handler+0xcc/0xe4 arch/arm64/kernel/entry-common.c:626
 el0t_64_sync+0x1a0/0x1a4 arch/arm64/kernel/entry.S:584
irq event stamp: 2650
hardirqs last  enabled at (2649): [<ffff8000082f7654>] __up_console_sem+0xb4/0x100 kernel/printk/printk.c:257
hardirqs last disabled at (2650): [<ffff80001119f610>] el1_dbg+0x24/0x80 arch/arm64/kernel/entry-common.c:396
softirqs last  enabled at (2602): [<ffff80000819d0d8>] softirq_handle_end kernel/softirq.c:401 [inline]
softirqs last  enabled at (2602): [<ffff80000819d0d8>] handle_softirqs+0xa4c/0xbf0 kernel/softirq.c:586
softirqs last disabled at (2489): [<ffff80000819d6dc>] __do_softirq kernel/softirq.c:592 [inline]
softirqs last disabled at (2489): [<ffff80000819d6dc>] do_softirq_own_stack include/asm-generic/softirq_stack.h:10 [inline]
softirqs last disabled at (2489): [<ffff80000819d6dc>] invoke_softirq kernel/softirq.c:439 [inline]
softirqs last disabled at (2489): [<ffff80000819d6dc>] __irq_exit_rcu+0x240/0x440 kernel/softirq.c:641
---[ end trace 49c93a7ffb1d7355 ]---
BTRFS: error (device loop4) in btrfs_remove_chunk:3253: errno=-28 No space left