NILFS (loop4): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
audit: type=1804 audit(1677968706.110:437): pid=8399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=invalid_pcr cause=open_writers comm="syz-executor.4" name="/root/syzkaller-testdir2448347966/syzkaller.Ovy2A3/1316/file0/bus" dev="loop4" ino=18 res=1
WARNING: CPU: 1 PID: 8399 at include/linux/backing-dev.h:340 inode_to_wb include/linux/backing-dev.h:340 [inline]
WARNING: CPU: 1 PID: 8399 at include/linux/backing-dev.h:340 account_page_dirtied+0x8cc/0xbb0 mm/page-writeback.c:2420
Kernel panic - not syncing: panic_on_warn set ...

CPU: 1 PID: 8399 Comm: syz-executor.4 Not tainted 4.19.211-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 03/02/2023
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x1fc/0x2ef lib/dump_stack.c:118
 panic+0x26a/0x50e kernel/panic.c:186
 __warn.cold+0x20/0x5a kernel/panic.c:541
 report_bug+0x262/0x2b0 lib/bug.c:183
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0x1d7/0x310 arch/x86/kernel/traps.c:296
audit: type=1800 audit(1677968706.120:438): pid=8399 uid=0 auid=4294967295 ses=4294967295 subj==unconfined op=collect_data cause=failed(directio) comm="syz-executor.4" name="bus" dev="loop4" ino=18 res=0
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:1038
RIP: 0010:inode_to_wb include/linux/backing-dev.h:340 [inline]
RIP: 0010:account_page_dirtied+0x8cc/0xbb0 mm/page-writeback.c:2420
Code: 88 01 00 00 be ff ff ff ff 48 8d 78 70 e8 ec e1 ca ff 31 ff 89 c3 89 c6 e8 f1 b3 e2 ff 85 db 0f 85 39 f9 ff ff e8 74 b2 e2 ff <0f> 0b e9 2d f9 ff ff e8 68 b2 e2 ff 4c 89 e6 4c 89 ef e8 9d b3 2d
RSP: 0018:ffff888048dbeb80 EFLAGS: 00010016
RAX: 0000000000040000 RBX: 0000000000000000 RCX: ffffc9000945e000
RDX: 0000000000002a0a RSI: ffffffff817fd2fc RDI: 0000000000000005
RBP: ffff88803e56ecc8 R08: 0000000000000001 R09: 0000000000000000
R10: 0000000000000005 R11: 0000000000000000 R12: ffffea000297c000
R13: ffff88803e56eb40 R14: ffff88803e56e9b8 R15: ffffea000297c008
 __set_page_dirty+0x7f/0x3e0 fs/buffer.c:582
 mark_buffer_dirty+0x424/0x5c0 fs/buffer.c:1111
 nilfs_btree_do_insert fs/nilfs2/btree.c:811 [inline]
 nilfs_btree_do_insert+0x2d0/0x390 fs/nilfs2/btree.c:798
 nilfs_btree_commit_insert fs/nilfs2/btree.c:1212 [inline]
 nilfs_btree_insert+0xe0d/0x1ae0 fs/nilfs2/btree.c:1240
 nilfs_bmap_do_insert fs/nilfs2/bmap.c:121 [inline]
 nilfs_bmap_insert+0x27a/0x3f0 fs/nilfs2/bmap.c:147
 nilfs_mdt_insert_new_block fs/nilfs2/mdt.c:44 [inline]
 nilfs_mdt_create_block fs/nilfs2/mdt.c:93 [inline]
 nilfs_mdt_get_block+0x59a/0xd40 fs/nilfs2/mdt.c:254
 nilfs_palloc_get_block+0xc4/0x2b0 fs/nilfs2/alloc.c:216
 nilfs_palloc_get_entry_block+0x17b/0x230 fs/nilfs2/alloc.c:318
 nilfs_dat_prepare_entry fs/nilfs2/dat.c:43 [inline]
 nilfs_dat_prepare_alloc fs/nilfs2/dat.c:69 [inline]
 nilfs_dat_prepare_alloc+0x61/0xb0 fs/nilfs2/dat.c:61
 nilfs_bmap_prepare_alloc_ptr fs/nilfs2/bmap.h:183 [inline]
 nilfs_direct_insert+0x3cb/0x4e0 fs/nilfs2/direct.c:122
 nilfs_bmap_do_insert fs/nilfs2/bmap.c:121 [inline]
 nilfs_bmap_insert+0x27a/0x3f0 fs/nilfs2/bmap.c:147
 nilfs_get_block+0x4d5/0x970 fs/nilfs2/inode.c:96
 __block_write_begin_int+0x46c/0x17b0 fs/buffer.c:1978
 __block_write_begin fs/buffer.c:2028 [inline]
 block_write_begin+0x58/0x2e0 fs/buffer.c:2087
 nilfs_write_begin+0xa5/0x1b0 fs/nilfs2/inode.c:267
 generic_perform_write+0x1f8/0x4d0 mm/filemap.c:3170
 __generic_file_write_iter+0x24b/0x610 mm/filemap.c:3295
 generic_file_write_iter+0x3f8/0x730 mm/filemap.c:3323
 call_write_iter include/linux/fs.h:1821 [inline]
 new_sync_write fs/read_write.c:474 [inline]
 __vfs_write+0x51b/0x770 fs/read_write.c:487
 __kernel_write+0x109/0x370 fs/read_write.c:506
 write_pipe_buf+0x153/0x1f0 fs/splice.c:798
 splice_from_pipe_feed fs/splice.c:503 [inline]
 __splice_from_pipe+0x389/0x800 fs/splice.c:627
 splice_from_pipe fs/splice.c:662 [inline]
 default_file_splice_write+0xd8/0x180 fs/splice.c:810
 do_splice_from fs/splice.c:852 [inline]
 direct_splice_actor+0x115/0x160 fs/splice.c:1025
 splice_direct_to_actor+0x33f/0x8d0 fs/splice.c:980
 do_splice_direct+0x1a7/0x270 fs/splice.c:1068
 do_sendfile+0x550/0xc30 fs/read_write.c:1447
 __do_sys_sendfile64 fs/read_write.c:1508 [inline]
 __se_sys_sendfile64+0x147/0x160 fs/read_write.c:1494
 do_syscall_64+0xf9/0x620 arch/x86/entry/common.c:293
 entry_SYSCALL_64_after_hwframe+0x49/0xbe
RIP: 0033:0x7f0a0d7570f9
Code: 28 00 00 00 75 05 48 83 c4 28 c3 e8 f1 19 00 00 90 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 b8 ff ff ff f7 d8 64 89 01 48
RSP: 002b:00007f0a0bcc9168 EFLAGS: 00000246 ORIG_RAX: 0000000000000028
RAX: ffffffffffffffda RBX: 00007f0a0d876f80 RCX: 00007f0a0d7570f9
RDX: 0000000000000000 RSI: 0000000000000005 RDI: 0000000000000004
RBP: 00007f0a0d7b2ae9 R08: 0000000000000000 R09: 0000000000000000
R10: 000000000001f000 R11: 0000000000000246 R12: 0000000000000000
R13: 00007fff516a1dcf R14: 00007f0a0bcc9300 R15: 0000000000022000
Kernel Offset: disabled
Rebooting in 86400 seconds..