kernel BUG at mm/page-writeback.c:2652!
invalid opcode: 0000 [#1] SMP KASAN PTI
Dumping ftrace buffer:
   (ftrace buffer empty)
Modules linked in:
CPU: 3 PID: 25127 Comm: syz-executor6 Not tainted 4.17.0-rc4+ #10
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 01/01/2011
RIP: 0010:clear_page_dirty_for_io+0x385/0xb50 mm/page-writeback.c:2652
RSP: 0018:ffff8800895cedd0 EFLAGS: 00010246
RAX: 0000000000040000 RBX: ffffea0002efd6c0 RCX: ffffffff817aaf95
RDX: 0000000000040000 RSI: ffffc9000c69a000 RDI: ffffea0002efd6c8
RBP: ffff8800895cee20 R08: fffff94000500d04 R09: 0000000000000001
R10: fffff94000500d03 R11: ffffea000280681f R12: ffff880104f1eb30
R13: ffffea0002efd6c0 R14: ffffea0002efd6e0 R15: ffffea0002efd620
FS:  00007fc30bcd1700(0000) GS:ffff880104d80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff75c383d0 CR3: 000000008e0ae003 CR4: 00000000001606e0
DR0: 0000000020000000 DR1: 0000000020000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000600
Call Trace:
 __process_pages_contig+0x490/0x930 fs/btrfs/extent_io.c:1713
 extent_clear_unlock_delalloc+0x8c/0xb0 fs/btrfs/extent_io.c:1753
 cow_file_range.isra.64+0x651/0x890 fs/btrfs/inode.c:1107
 run_delalloc_nocow+0xcaf/0x1560 fs/btrfs/inode.c:1556
 run_delalloc_range+0x448/0x9e0 fs/btrfs/inode.c:1612
 writepage_delalloc+0x257/0x460 fs/btrfs/extent_io.c:3253
 __extent_writepage+0x536/0x8d0 fs/btrfs/extent_io.c:3505
 extent_write_cache_pages+0x31d/0xb10 fs/btrfs/extent_io.c:3995
 extent_writepages+0xc7/0x110 fs/btrfs/extent_io.c:4124
 btrfs_writepages+0x3e/0x50 fs/btrfs/inode.c:8711
 do_writepages+0xf2/0x290 mm/page-writeback.c:2341
 __filemap_fdatawrite_range+0x251/0x310 mm/filemap.c:445
 filemap_fdatawrite_range+0x2a/0x40 mm/filemap.c:465
 btrfs_fdatawrite_range+0x49/0xe0 fs/btrfs/file.c:3397
 btrfs_wait_ordered_range+0x4c/0x210 fs/btrfs/ordered-data.c:817
 btrfs_fallocate+0x45e/0x2ab0 fs/btrfs/file.c:3119
 vfs_fallocate+0x33c/0x6f0 fs/open.c:319