loop0: detected capacity change from 0 to 32768 BTRFS: device fsid e417788f-7a09-42b2-9266-8ddc5d5d35d2 devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5340) BTRFS info (device loop0): first mount of filesystem e417788f-7a09-42b2-9266-8ddc5d5d35d2 BTRFS info (device loop0): using xxhash64 (xxhash64-generic) checksum algorithm BTRFS info (device loop0): using free-space-tree BTRFS info (device loop0): rebuilding free space tree BTRFS info (device loop0): balance: start -susage=34359738372,drange=7..526332,limit=0..6 BTRFS info (device loop0): left=0, need=98304, flags=2 BTRFS info (device loop0): space_info SYSTEM (sub-group id 0) has 0 free, is not full BTRFS info (device loop0): space_info total=4194304, used=4096, pinned=0, reserved=0, may_use=0, readonly=4190208 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_refs_rsv: size 0 reserved 0 BTRFS error (device loop0): allocation failed flags 12, wanted 4096 tree-log 0, relocation: 0 BTRFS info (device loop0): space_info DATA+METADATA (sub-group id 0) has 1769472 free, is full BTRFS info (device loop0): space_info total=3276800, used=61440, pinned=0, reserved=0, may_use=1445888, readonly=0 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1441792 BTRFS info (device loop0): trans_block_rsv: size 0 reserved 0 BTRFS info (device loop0): chunk_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_block_rsv: size 0 reserved 0 BTRFS info (device loop0): delayed_refs_rsv: size 327680 reserved 0 BTRFS info (device loop0): block group 5242880 has 1638400 bytes, 61440 used 0 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (1576960 bytes available) BTRFS critical (device loop0): entry offset 5251072, bytes 4096, bitmap no BTRFS critical (device loop0): entry offset 5259264, bytes 8192, bitmap no BTRFS critical (device loop0): entry offset 5271552, bytes 16384, bitmap no BTRFS critical (device loop0): entry offset 5316608, bytes 32768, bitmap no BTRFS critical (device loop0): entry offset 5365760, bytes 1515520, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 5 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): block group 6881280 has 1638400 bytes, 0 used 0 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (1638400 bytes available) BTRFS critical (device loop0): entry offset 6881280, bytes 1638400, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 1 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): 3215360 bytes available across all block groups ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 0 PID: 5340 at fs/btrfs/block-group.c:2781 btrfs_create_pending_block_groups+0x1120/0x1360 fs/btrfs/block-group.c:2781 Modules linked in: CPU: 0 UID: 0 PID: 5340 Comm: syz.0.0 Not tainted 6.16.0-rc5-syzkaller-00038-g733923397fd9 #0 PREEMPT(full) Hardware name: QEMU Standard PC (Q35 + ICH9, 2009), BIOS 1.16.3-debian-1.16.3-2~bpo12+1 04/01/2014 RIP: 0010:btrfs_create_pending_block_groups+0x1120/0x1360 fs/btrfs/block-group.c:2781 Code: 48 c7 c6 00 c1 cf 8b 44 89 f2 e8 cb 83 42 fd e9 38 fe ff ff e8 b1 82 d8 fd 90 48 c7 c7 a0 c0 cf 8b 44 89 f6 e8 71 62 9c fd 90 <0f> 0b 90 90 e9 19 fe ff ff e8 92 82 d8 fd eb 05 e8 8b 82 d8 fd 4c RSP: 0018:ffffc9000f6676e0 EFLAGS: 00010246 RAX: 38e71fce39d34b00 RBX: ffff888052ef8001 RCX: 0000000000100000 RDX: ffffc9000de1a000 RSI: 0000000000014816 RDI: 0000000000014817 RBP: ffffc9000f667958 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfaa64 R12: 0000000000000000 R13: dffffc0000000000 R14: 00000000ffffffe4 R15: ffff88801183d858 FS: 00007fe07eb2c6c0(0000) GS:ffff88808d21b000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007fe07dfab098 CR3: 000000004063c000 CR4: 0000000000352ef0 Call Trace: __btrfs_end_transaction+0x140/0x640 fs/btrfs/transaction.c:1071 btrfs_inc_block_group_ro+0x641/0x6f0 fs/btrfs/block-group.c:3077 btrfs_relocate_block_group+0x47a/0xde0 fs/btrfs/relocation.c:3962 btrfs_relocate_chunk+0x12a/0x3b0 fs/btrfs/volumes.c:3437 __btrfs_balance+0x1870/0x21d0 fs/btrfs/volumes.c:4212 btrfs_balance+0xc94/0x11d0 fs/btrfs/volumes.c:4589 btrfs_ioctl_balance+0x3d3/0x610 fs/btrfs/ioctl.c:3583 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:907 [inline] __se_sys_ioctl+0xfc/0x170 fs/ioctl.c:893 do_syscall_x64 arch/x86/entry/syscall_64.c:63 [inline] do_syscall_64+0xfa/0x3b0 arch/x86/entry/syscall_64.c:94 entry_SYSCALL_64_after_hwframe+0x77/0x7f RIP: 0033:0x7fe07dd8e929 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:00007fe07eb2c038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007fe07dfb5fa0 RCX: 00007fe07dd8e929 RDX: 0000200000000440 RSI: 00000000c4009420 RDI: 0000000000000003 RBP: 00007fe07de10b39 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 0000000000000000 R14: 00007fe07dfb5fa0 R15: 00007ffe9d9b03d8