BTRFS info (device loop6): block group has cluster?: no BTRFS info (device loop6): 0 free space entries at or bigger than 4096 bytes BTRFS info (device loop6): 4194304 bytes available across all block groups ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 1 PID: 11781 at fs/btrfs/volumes.c:3236 btrfs_remove_chunk+0x1601/0x1920 fs/btrfs/volumes.c:3236 Modules linked in: CPU: 1 PID: 11781 Comm: syz.6.1284 Not tainted syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025 RIP: 0010:btrfs_remove_chunk+0x1601/0x1920 fs/btrfs/volumes.c:3236 Code: e8 44 69 cf fd 0f 0b 49 be 00 00 00 00 00 fc ff df e9 8e fd ff ff e8 5e ed 04 fe 48 c7 c7 00 94 ed 8a 44 89 e6 e8 1f 69 cf fd <0f> 0b 49 be 00 00 00 00 00 fc ff df e9 d5 fd ff ff e8 39 ed 04 fe RSP: 0000:ffffc9000508f8e0 EFLAGS: 00010246 RAX: a732a2f571803900 RBX: 0000000000000000 RCX: 0000000000080000 RDX: ffffc9000d8da000 RSI: 000000000007ffff RDI: 0000000000080000 RBP: ffffc9000508fad0 R08: ffffc9000508f4e7 R09: 1ffff92000a11e9c R10: dffffc0000000000 R11: fffff52000a11e9d R12: ffffffffffffffe4 R13: 0000000000000001 R14: ffff88807b2ec001 R15: 1ffff11004b5f2c0 FS: 00007f13bf6dc6c0(0000) GS:ffff8880b8f00000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f8883006000 CR3: 0000000024fea000 CR4: 00000000003506e0 DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000 DR3: 0000000000000000 DR6: 00000000ffff0ff0 DR7: 0000000000000600 Call Trace: btrfs_relocate_chunk+0x292/0x3b0 fs/btrfs/volumes.c:3366 __btrfs_balance+0x187b/0x21c0 fs/btrfs/volumes.c:4067 btrfs_balance+0xcb1/0x11c0 fs/btrfs/volumes.c:4444 btrfs_ioctl_balance+0x4a2/0x730 fs/btrfs/ioctl.c:3647 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:871 [inline] __se_sys_ioctl+0xfd/0x170 fs/ioctl.c:857 do_syscall_x64 arch/x86/entry/common.c:51 [inline] do_syscall_64+0x55/0xb0 arch/x86/entry/common.c:81 entry_SYSCALL_64_after_hwframe+0x68/0xd2 RIP: 0033:0x7f13be78eba9 Code: ff ff c3 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 40 00 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 c7 c1 a8 ff ff ff f7 d8 64 89 01 48 RSP: 002b:00007f13bf6dc038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f13be9d5fa0 RCX: 00007f13be78eba9 RDX: 0000200000000200 RSI: 00000000c4009420 RDI: 0000000000000005 RBP: 00007f13be811e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f13be9d6038 R14: 00007f13be9d5fa0 R15: 00007ffc5df6cc88