wlan1: Creating new IBSS network, BSSID 50:50:50:50:50:50
udevd[3958]: incorrect nilfs2 checksum on /dev/loop6
IPv6: ADDRCONF(NETDEV_CHANGE): wlan1: link becomes ready
NILFS (loop6): broken superblock, retrying with spare superblock (blocksize = 1024)
NILFS (loop6): segctord starting. Construction interval = 5 seconds, CP frequency < 30 seconds
WARNING: CPU: 0 PID: 5997 at include/linux/backing-dev.h:342 inode_to_wb include/linux/backing-dev.h:339 [inline]
WARNING: CPU: 0 PID: 5997 at include/linux/backing-dev.h:342 account_page_dirtied+0x29b/0x320 mm/page-writeback.c:2416
Kernel panic - not syncing: panic_on_warn set ...

CPU: 0 PID: 5997 Comm: segctord Not tainted 4.19.0-syzkaller #0
Hardware name: Google Google Compute Engine/Google Compute Engine, BIOS Google 09/13/2024
Call Trace:
 __dump_stack lib/dump_stack.c:77 [inline]
 dump_stack+0x87/0xba lib/dump_stack.c:113
 panic+0xef/0x24e kernel/panic.c:184
 __warn.cold.7+0x31/0x37 kernel/panic.c:536
 report_bug+0xb6/0xe0 lib/bug.c:186
 fixup_bug arch/x86/kernel/traps.c:178 [inline]
 fixup_bug arch/x86/kernel/traps.c:173 [inline]
 do_error_trap+0xfe/0x180 arch/x86/kernel/traps.c:296
 do_invalid_op+0x1b/0x20 arch/x86/kernel/traps.c:316
 invalid_op+0x14/0x20 arch/x86/entry/entry_64.S:993
RIP: 0010:inode_to_wb include/linux/backing-dev.h:339 [inline]
RIP: 0010:account_page_dirtied+0x29b/0x320 mm/page-writeback.c:2416
Code: e8 ea 26 f3 ff 85 c0 0f 85 09 fe ff ff 49 8b 86 88 01 00 00 be ff ff ff ff 48 8d 78 70 e8 cd 26 f3 ff 85 c0 0f 85 ec fd ff ff <0f> 0b e9 e5 fd ff ff 4c 89 e6 4c 89 f7 e8 73 68 0d 00 e9 c7 fd ff
ieee80211 phy12: Selected rate control algorithm 'minstrel_ht'
RSP: 0018:ffffc90002137b30 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffffea00085b6480 RCX: 9e7b5ae300000000
RDX: 0000000000000000 RSI: 00000000ffffffff RDI: 0000000000000086
RBP: ffffc90002137b50 R08: 0000000000000008 R09: 0000000000bb29a1
R10: ffff88022c7f0de8 R11: ffff88022a3a6388 R12: ffffea00085b6480
R13: ffff88022c7f0dc8 R14: ffff88022c7f0f58 R15: 0000000000000000
 __set_page_dirty+0x56/0xf0 fs/buffer.c:581
 mark_buffer_dirty+0x109/0x160 fs/buffer.c:1110
 nilfs_btnode_commit_change_key+0x40/0xd0 fs/nilfs2/btnode.c:255
 nilfs_btree_commit_update_v+0xc1/0xd0 fs/nilfs2/btree.c:1942
 nilfs_btree_commit_propagate_v fs/nilfs2/btree.c:2013 [inline]
 nilfs_btree_propagate_v fs/nilfs2/btree.c:2043 [inline]
 nilfs_btree_propagate+0x253/0x380 fs/nilfs2/btree.c:2085
 nilfs_bmap_propagate+0x31/0x80 fs/nilfs2/bmap.c:337
 nilfs_collect_file_data+0x1e/0x50 fs/nilfs2/segment.c:573
IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
 nilfs_segctor_apply_buffers+0x8e/0x110 fs/nilfs2/segment.c:1014
 nilfs_segctor_scan_file+0x13d/0x190 fs/nilfs2/segment.c:1063
 nilfs_segctor_collect_blocks fs/nilfs2/segment.c:1170 [inline]
 nilfs_segctor_collect fs/nilfs2/segment.c:1494 [inline]
 nilfs_segctor_do_construct+0xc5c/0x2380 fs/nilfs2/segment.c:2036
 nilfs_segctor_construct+0x1f6/0x2e0 fs/nilfs2/segment.c:2372
wlan0: Created IBSS using preconfigured BSSID 50:50:50:50:50:50
 nilfs_segctor_thread_construct fs/nilfs2/segment.c:2480 [inline]
 nilfs_segctor_thread+0x12a/0x380 fs/nilfs2/segment.c:2563
wlan0: Creating new IBSS network, BSSID 50:50:50:50:50:50
 kthread+0x11c/0x140 kernel/kthread.c:246
 ret_from_fork+0x35/0x40 arch/x86/entry/entry_64.S:413
Kernel Offset: disabled
Rebooting in 86400 seconds..