NILFS (loop0): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds ------------[ cut here ]------------ WARNING: CPU: 0 PID: 7995 at include/linux/backing-dev.h:335 inode_to_wb include/linux/backing-dev.h:335 [inline] WARNING: CPU: 0 PID: 7995 at include/linux/backing-dev.h:335 account_page_dirtied+0x8df/0xbb0 mm/page-writeback.c:2437 Kernel panic - not syncing: panic_on_warn set ... CPU: 0 PID: 7995 Comm: syz-executor225 Not tainted 4.14.295-syzkaller #0 Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/22/2022 Call Trace: __dump_stack lib/dump_stack.c:17 [inline] dump_stack+0x1b2/0x281 lib/dump_stack.c:58 panic+0x1f9/0x42d kernel/panic.c:183 __warn.cold+0x20/0x44 kernel/panic.c:547 report_bug+0x208/0x250 lib/bug.c:183 fixup_bug arch/x86/kernel/traps.c:177 [inline] fixup_bug arch/x86/kernel/traps.c:172 [inline] do_error_trap+0x195/0x2d0 arch/x86/kernel/traps.c:295 invalid_op+0x1b/0x40 arch/x86/entry/entry_64.S:964 RIP: 0010:inode_to_wb include/linux/backing-dev.h:335 [inline] RIP: 0010:account_page_dirtied+0x8df/0xbb0 mm/page-writeback.c:2437 RSP: 0018:ffff8880a2eff2e0 EFLAGS: 00010097 RAX: ffff8880b4f781c0 RBX: ffff8880af3d22c0 RCX: 1ffffffff127a5d4 RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000086 RBP: ffff88808df98bd8 R08: ffffffff8b9c74d0 R09: 00000000000c023c R10: ffff8880b4f78b38 R11: ffff8880b4f781c0 R12: ffffea0002a56c00 R13: ffff88808df98a48 R14: ffff88808df98a48 R15: ffffea0002a56c20 __set_page_dirty+0x77/0x2a0 fs/buffer.c:634 mark_buffer_dirty+0x307/0x480 fs/buffer.c:1173 nilfs_btree_commit_convert_and_insert fs/nilfs2/btree.c:1821 [inline] nilfs_btree_convert_and_insert+0xd33/0x1070 fs/nilfs2/btree.c:1886 nilfs_bmap_do_insert fs/nilfs2/bmap.c:120 [inline] nilfs_bmap_insert+0x242/0x380 fs/nilfs2/bmap.c:156 nilfs_mdt_insert_new_block fs/nilfs2/mdt.c:53 [inline] nilfs_mdt_create_block fs/nilfs2/mdt.c:102 [inline] nilfs_mdt_get_block+0x4a1/0xb90 fs/nilfs2/mdt.c:263 nilfs_palloc_get_block+0xb2/0x250 fs/nilfs2/alloc.c:225 nilfs_palloc_get_desc_block fs/nilfs2/alloc.c:274 [inline] nilfs_palloc_prepare_alloc_entry+0x235/0x950 fs/nilfs2/alloc.c:533 nilfs_ifile_create_inode+0x74/0x1e0 fs/nilfs2/ifile.c:73 nilfs_new_inode+0x1c4/0x6f0 fs/nilfs2/inode.c:362 nilfs_create fs/nilfs2/namei.c:94 [inline] nilfs_create+0xd2/0x2a0 fs/nilfs2/namei.c:84 lookup_open+0x77a/0x1750 fs/namei.c:3241 do_last fs/namei.c:3334 [inline] path_openat+0xe08/0x2970 fs/namei.c:3571 do_filp_open+0x179/0x3c0 fs/namei.c:3605 do_sys_open+0x296/0x410 fs/open.c:1081 do_syscall_64+0x1d5/0x640 arch/x86/entry/common.c:292 entry_SYSCALL_64_after_hwframe+0x46/0xbb RIP: 0033:0x7fd87ab86459 RSP: 002b:00007ffc3e8c1638 EFLAGS: 00000246 ORIG_RAX: 0000000000000101 RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007fd87ab86459 RDX: 000000000000275a RSI: 0000000020000280 RDI: 00000000ffffff9c RBP: 00007fd87ab45cc0 R08: 00005555561cf2c0 R09: 0000000000000000 R10: 0000000000001800 R11: 0000000000000246 R12: 00007fd87ab45d50 R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000 Kernel Offset: disabled Rebooting in 86400 seconds..