syzbot

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): enabling ssd optimizations
BTRFS info (device loop0): enabling free space tree
BTRFS info (device loop0): balance: start -susage=34359738372,drange=7..526332,limit=0..6
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BTRFS: Transaction aborted (error -28)
WARNING: CPU: 0 PID: 6078 at fs/btrfs/block-group.c:2789 btrfs_create_pending_block_groups+0x1150/0x1780 fs/btrfs/block-group.c:2789
Modules linked in:
CPU: 0 UID: 0 PID: 6078 Comm: syz.0.17 Tainted: G        W           syzkaller #0 PREEMPT_{RT,(full)} 
Tainted: [W]=WARN
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 07/12/2025
RIP: 0010:btrfs_create_pending_block_groups+0x1150/0x1780 fs/btrfs/block-group.c:2789
Code: 00 e8 b4 90 c3 fd 84 c0 74 29 e8 0b e8 dc fd e9 fd 01 00 00 e8 01 e8 dc fd 90 48 c7 c7 e0 94 4f 8b 44 89 f6 e8 91 ba a1 fd 90 <0f> 0b 90 90 e9 e5 fd ff ff e8 42 e4 14 07 41 89 c7 31 ff 89 c6 e8
RSP: 0018:ffffc90004417700 EFLAGS: 00010246
RAX: c7dfc265d8346700 RBX: ffff888046344001 RCX: ffff88802f2ebb80
RDX: 0000000000000000 RSI: 0000000000000000 RDI: 0000000000000000
RBP: ffffc90004417970 R08: 0000000000000000 R09: 0000000000000000
R10: dffffc0000000000 R11: ffffed1017104863 R12: 0000000000000000
R13: dffffc0000000000 R14: 00000000ffffffe4 R15: ffff888055006000
FS:  0000555565519500(0000) GS:ffff8881268c4000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000563166d105f8 CR3: 000000002fe0e000 CR4: 00000000003526f0
Call Trace:
 <TASK>
 __btrfs_end_transaction+0x140/0x640 fs/btrfs/transaction.c:1071
 btrfs_inc_block_group_ro+0x641/0x6f0 fs/btrfs/block-group.c:3085
 btrfs_relocate_block_group+0x29d/0xba0 fs/btrfs/relocation.c:3950
 btrfs_relocate_chunk+0x12f/0x5d0 fs/btrfs/volumes.c:3446
 __btrfs_balance+0x186f/0x23f0 fs/btrfs/volumes.c:4222
 btrfs_balance+0xac2/0x11b0 fs/btrfs/volumes.c:4599
 btrfs_ioctl_balance+0x3d6/0x610 fs/btrfs/ioctl.c:3577
 vfs_ioctl fs/ioctl.c:51 [inline]
 __do_sys_ioctl fs/ioctl.c:598 [inline]
 __se_sys_ioctl+0xfc/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: 0033:0x7f6f2372ebe9
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:00007ffeb1d29eb8 EFLAGS: 00000246 ORIG_RAX: 0000000000000010
RAX: ffffffffffffffda RBX: 00007f6f23955fa0 RCX: 00007f6f2372ebe9
RDX: 0000200000000440 RSI: 00000000c4009420 RDI: 0000000000000003
RBP: 00007f6f237b1e19 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007f6f23955fa0 R14: 00007f6f23955fa0 R15: 0000000000000003
 </TASK>