BTRFS info (device loop0): rebuilding free space tree
assertion failed: block_start != EXTENT_MAP_HOLE, in fs/btrfs/extent_io.c:1391
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kernel BUG at fs/btrfs/extent_io.c:1391!
Oops: invalid opcode: 0000 [#1] PREEMPT SMP KASAN PTI
CPU: 1 UID: 0 PID: 7194 Comm: syz.0.38 Not tainted 6.14.0-rc4-syzkaller-gd082ecbc71e9 #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 02/12/2025
RIP: 0010:submit_one_sector fs/btrfs/extent_io.c:1391 [inline]
RIP: 0010:extent_writepage_io+0xd9c/0xe30 fs/btrfs/extent_io.c:1477
Code: 37 fd 90 0f 0b e8 04 8b d2 fd 48 c7 c7 20 06 6d 8c 48 c7 c6 20 13 6d 8c 48 c7 c2 c0 05 6d 8c b9 6f 05 00 00 e8 45 cf 37 fd 90 <0f> 0b e8 dd 8a d2 fd 4c 89 ff 48 c7 c6 a0 0a 6d 8c e8 4e e4 1a fe
RSP: 0018:ffffc9000528f040 EFLAGS: 00010246
RAX: 000000000000004e RBX: ffffea0001a24588 RCX: 90bae01a5d294900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000528f1b0 R08: ffffffff81a1139c R09: 1ffff92000a51da4
R10: dffffc0000000000 R11: fffff52000a51da5 R12: dffffc0000000000
R13: 0000000000007000 R14: fffffffffffffffd R15: ffffea0001a24580
FS:  00007f5fc25fe6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002096e000 CR3: 0000000058604000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 extent_writepage fs/btrfs/extent_io.c:1564 [inline]
 extent_write_cache_pages fs/btrfs/extent_io.c:2248 [inline]
 btrfs_writepages+0x1428/0x22c0 fs/btrfs/extent_io.c:2376
 do_writepages+0x35f/0x880 mm/page-writeback.c:2687
 filemap_fdatawrite_wbc mm/filemap.c:389 [inline]
 __filemap_fdatawrite_range mm/filemap.c:422 [inline]
 filemap_fdatawrite_range+0x215/0x2c0 mm/filemap.c:440
 btrfs_fdatawrite_range fs/btrfs/file.c:3694 [inline]
 start_ordered_ops fs/btrfs/file.c:1432 [inline]
 btrfs_sync_file+0x55a/0x11e0 fs/btrfs/file.c:1543
 generic_write_sync include/linux/fs.h:2970 [inline]
 btrfs_do_write_iter+0x5fc/0x7b0 fs/btrfs/file.c:1384
 new_sync_write fs/read_write.c:586 [inline]
 vfs_write+0xacf/0xd10 fs/read_write.c:679
 ksys_write+0x18f/0x2b0 fs/read_write.c:731
 do_syscall_x64 arch/x86/entry/common.c:52 [inline]
 do_syscall_64+0xf3/0x230 arch/x86/entry/common.c:83
 entry_SYSCALL_64_after_hwframe+0x77/0x7f
RIP: 0033:0x7f5fc337dff9
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:00007f5fc25fe038 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 00007f5fc3535f80 RCX: 00007f5fc337dff9
RDX: 00000000fffffe54 RSI: 0000000020000240 RDI: 0000000000000005
RBP: 00007f5fc33f0296 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 00007f5fc3535f80 R15: 00007ffde819d488
 </TASK>
Modules linked in:
---[ end trace 0000000000000000 ]---
RIP: 0010:submit_one_sector fs/btrfs/extent_io.c:1391 [inline]
RIP: 0010:extent_writepage_io+0xd9c/0xe30 fs/btrfs/extent_io.c:1477
Code: 37 fd 90 0f 0b e8 04 8b d2 fd 48 c7 c7 20 06 6d 8c 48 c7 c6 20 13 6d 8c 48 c7 c2 c0 05 6d 8c b9 6f 05 00 00 e8 45 cf 37 fd 90 <0f> 0b e8 dd 8a d2 fd 4c 89 ff 48 c7 c6 a0 0a 6d 8c e8 4e e4 1a fe
RSP: 0018:ffffc9000528f040 EFLAGS: 00010246
RAX: 000000000000004e RBX: ffffea0001a24588 RCX: 90bae01a5d294900
RDX: 0000000000000000 RSI: 0000000080000000 RDI: 0000000000000000
RBP: ffffc9000528f1b0 R08: ffffffff81a1139c R09: 1ffff92000a51da4
R10: dffffc0000000000 R11: fffff52000a51da5 R12: dffffc0000000000
R13: 0000000000007000 R14: fffffffffffffffd R15: ffffea0001a24580
FS:  00007f5fc25fe6c0(0000) GS:ffff8880b8700000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000002096e000 CR3: 0000000058604000 CR4: 00000000003526f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400