loop0: detected capacity change from 0 to 32768 BTRFS: device fsid ed167579-eb65-4e76-9a50-61ac97e9b59d devid 1 transid 8 /dev/loop0 (7:0) scanned by syz.0.0 (5359) BTRFS info (device loop0): first mount of filesystem ed167579-eb65-4e76-9a50-61ac97e9b59d BTRFS info (device loop0): using sha256 (sha256-lib) checksum algorithm BTRFS info (device loop0): rebuilding free space tree BTRFS info (device loop0): setting nodatasum BTRFS info (device loop0): enabling ssd optimizations BTRFS info (device loop0): using spread ssd allocation scheme BTRFS info (device loop0): turning off barriers BTRFS info (device loop0): enabling free space tree BTRFS info (device loop0): force clearing of disk cache BTRFS info (device loop0): doing ref verification BTRFS info (device loop0): balance: start -d -m BTRFS info (device loop0): relocating block group 6881280 flags data|metadata BTRFS info (device loop0): relocating block group 5242880 flags data|metadata BTRFS error (device loop0): allocation failed flags 4, wanted 4096 tree-log 0, relocation: 0 BTRFS info (device loop0): space_info DATA+METADATA (sub-group id 0) has -2486272 free, is full BTRFS info (device loop0): space_info total=9895936, used=61440, pinned=16384, reserved=8257536, may_use=2486272, readonly=1560576 zone_unusable=0 BTRFS info (device loop0): global_block_rsv: size 1441792 reserved 1433600 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 262144 reserved 0 BTRFS info (device loop0): block group 5242880 has 1638400 bytes, 61440 used 16384 pinned 0 reserved 0 delalloc 0 super 0 zone_unusable (1560576 bytes available) [readonly] BTRFS critical (device loop0): entry offset 5242880, bytes 49152, bitmap no BTRFS critical (device loop0): entry offset 5316608, bytes 53248, bitmap no BTRFS critical (device loop0): entry offset 5378048, bytes 4096, bitmap no BTRFS critical (device loop0): entry offset 5386240, bytes 4096, bitmap no BTRFS critical (device loop0): entry offset 5394432, bytes 32768, bitmap no BTRFS critical (device loop0): entry offset 5464064, bytes 1417216, bitmap no BTRFS info (device loop0): block group has cluster?: no BTRFS info (device loop0): 0 free space entries at or bigger than 4096 bytes BTRFS info (device loop0): block group 8519680 has 8257536 bytes, 0 used 0 pinned 4096 reserved 0 delalloc 0 super 0 zone_unusable (8253440 bytes available) BTRFS critical (device loop0): entry offset 8523776, bytes 8253440, 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): 9814016 bytes available across all block groups BTRFS warning (device loop0): Skipping commit of aborted transaction. ------------[ cut here ]------------ BTRFS: Transaction aborted (error -28) WARNING: CPU: 0 PID: 5359 at fs/btrfs/transaction.c:2023 cleanup_transaction fs/btrfs/transaction.c:2023 [inline] WARNING: CPU: 0 PID: 5359 at fs/btrfs/transaction.c:2023 btrfs_commit_transaction+0x2f67/0x3950 fs/btrfs/transaction.c:2614 Modules linked in: CPU: 0 UID: 0 PID: 5359 Comm: syz.0.0 Not tainted syzkaller #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:cleanup_transaction fs/btrfs/transaction.c:2023 [inline] RIP: 0010:btrfs_commit_transaction+0x2f67/0x3950 fs/btrfs/transaction.c:2614 Code: 8f cc dd fd 84 c0 74 2b e8 96 2a f7 fd eb 73 e8 8f 2a f7 fd 90 48 c7 c7 60 d0 cd 8b 8b 5c 24 18 89 de e8 6c b9 ba fd 89 d9 90 <0f> 0b 90 90 e9 1a 01 00 00 e8 0b 2e b3 07 89 c3 31 ff 89 c6 e8 a0 RSP: 0018:ffffc9000d5b74e0 EFLAGS: 00010246 RAX: f8f2cbd57aa00200 RBX: 00000000ffffffe4 RCX: 00000000ffffffe4 RDX: ffffc9000e1a2000 RSI: 000000000003138c RDI: 000000000003138d RBP: ffffc9000d5b7808 R08: 0000000000000003 R09: 0000000000000004 R10: dffffc0000000000 R11: fffffbfff1bfa1ec R12: ffff88803482daf8 R13: ffff888052d9c000 R14: ffff888052d9c000 R15: 0000000000000000 FS: 00007f9016bd26c0(0000) GS:ffff88808d20d000(0000) knlGS:0000000000000000 CS: 0010 DS: 0000 ES: 0000 CR0: 0000000080050033 CR2: 00007f900abff000 CR3: 0000000043cac000 CR4: 0000000000352ef0 Call Trace: prepare_to_relocate+0x39f/0x490 fs/btrfs/relocation.c:3500 relocate_block_group+0x13f/0xd90 fs/btrfs/relocation.c:3525 btrfs_relocate_block_group+0x6bc/0xc60 fs/btrfs/relocation.c:3997 btrfs_relocate_chunk+0x12f/0x5c0 fs/btrfs/volumes.c:3446 __btrfs_balance+0x1860/0x23f0 fs/btrfs/volumes.c:4222 btrfs_balance+0xac2/0x11b0 fs/btrfs/volumes.c:4599 btrfs_ioctl_balance+0x3d3/0x610 fs/btrfs/ioctl.c:3577 vfs_ioctl fs/ioctl.c:51 [inline] __do_sys_ioctl fs/ioctl.c:598 [inline] __se_sys_ioctl+0xf9/0x170 fs/ioctl.c:584 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: 0033:0x7f9015d8ebe9 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:00007f9016bd2038 EFLAGS: 00000246 ORIG_RAX: 0000000000000010 RAX: ffffffffffffffda RBX: 00007f9015fc5fa0 RCX: 00007f9015d8ebe9 RDX: 0000200000000180 RSI: 00000000c4009420 RDI: 0000000000000004 RBP: 00007f9015e11e19 R08: 0000000000000000 R09: 0000000000000000 R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000 R13: 00007f9015fc6038 R14: 00007f9015fc5fa0 R15: 00007ffc948fe008