BTRFS info (device loop2): block group 1048576 has 4194304 bytes, 4096 used 0 pinned 0 reserved 0 zone_unusable [readonly]
BTRFS info (device loop2): block group has cluster?: no
BTRFS info (device loop2): 0 blocks of free space at or bigger than bytes is
------------[ cut here ]------------
WARNING: CPU: 0 PID: 4351 at fs/btrfs/block-group.c:3505 do_chunk_alloc fs/btrfs/block-group.c:3505 [inline]
WARNING: CPU: 0 PID: 4351 at fs/btrfs/block-group.c:3505 btrfs_chunk_alloc+0xc0e/0x1020 fs/btrfs/block-group.c:3728
Modules linked in:
CPU: 0 PID: 4351 Comm: syz.2.13 Not tainted 5.15.175-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
RIP: 0010:do_chunk_alloc fs/btrfs/block-group.c:3505 [inline]
RIP: 0010:btrfs_chunk_alloc+0xc0e/0x1020 fs/btrfs/block-group.c:3728
Code: 00 00 00 fc ff df 4c 8b 24 24 0f 1f 44 00 00 e8 08 e7 f1 fd eb 16 e8 01 e7 f1 fd 48 c7 c7 e0 15 ed 8a 44 89 ee e8 42 81 bd fd <0f> 0b 48 8b 7c 24 20 48 c7 c6 e0 23 ed 8a ba b1 0d 00 00 e9 8e 00
RSP: 0018:ffffc9000431ea58 EFLAGS: 00010246
RAX: 8b7c70673c114c00 RBX: dffffc0000000000 RCX: 0000000000080000
RDX: ffffc9000de39000 RSI: 00000000000351f3 RDI: 00000000000351f4
RBP: ffff888079034001 R08: ffffffff8166aa6c R09: ffffed10171c4f24
R10: 0000000000000000 R11: dffffc0000000001 R12: ffff88802ba92084
R13: ffffffffffffffe4 R14: ffff88806801725b R15: 1ffff11005752410
FS:  00007f0a479996c0(0000) GS:ffff8880b8e00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f1e3c544000 CR3: 0000000023adf000 CR4: 00000000003506f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 find_free_extent_update_loop fs/btrfs/extent-tree.c:4039 [inline]
 find_free_extent+0x3eb7/0x4ff0 fs/btrfs/extent-tree.c:4402
 btrfs_reserve_extent+0x20a/0x540 fs/btrfs/extent-tree.c:4483
 cow_file_range+0x674/0xe10 fs/btrfs/inode.c:1181
 btrfs_run_delalloc_range+0x38b/0x1500 fs/btrfs/inode.c:2018
 writepage_delalloc+0x283/0x5a0 fs/btrfs/extent_io.c:3802
 __extent_writepage+0x57d/0xbc0 fs/btrfs/extent_io.c:4108
 extent_write_cache_pages fs/btrfs/extent_io.c:5030 [inline]
 extent_writepages+0xbbd/0x1590 fs/btrfs/extent_io.c:5157
 do_writepages+0x481/0x730 mm/page-writeback.c:2386
 filemap_fdatawrite_wbc+0x1d6/0x230 mm/filemap.c:400
 __filemap_fdatawrite_range mm/filemap.c:433 [inline]
 filemap_fdatawrite_range+0x158/0x1b0 mm/filemap.c:451
 btrfs_fdatawrite_range fs/btrfs/file.c:3917 [inline]
 start_ordered_ops+0xe6/0x210 fs/btrfs/file.c:2144
 btrfs_sync_file+0x418/0x1140 fs/btrfs/file.c:2227
 generic_write_sync include/linux/fs.h:2991 [inline]
 btrfs_file_write_iter+0x69b/0xd00 fs/btrfs/file.c:2101
 call_write_iter include/linux/fs.h:2174 [inline]
 new_sync_write fs/read_write.c:507 [inline]
 vfs_write+0xacd/0xe50 fs/read_write.c:594
 ksys_write+0x1a2/0x2c0 fs/read_write.c:647
 do_syscall_x64 arch/x86/entry/common.c:50 [inline]
 do_syscall_64+0x3b/0xb0 arch/x86/entry/common.c:80
 entry_SYSCALL_64_after_hwframe+0x66/0xd0
RIP: 0033:0x7f0a49b49d29
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:00007f0a47999038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f0a49d3a080 RCX: 00007f0a49b49d29
RDX: 000000000000fea7 RSI: 0000000020000000 RDI: 0000000000000006
RBP: 00007f0a49bc5aa8 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f0a49d3a080 R15: 00007ffda86a4db8
 </TASK>