Backtrace

kernel BUG at fs/ext4/inode.c:1997!
invalid opcode: 0000 [#1] SMP PTI
CPU: 1 PID: 115 Comm: kswapd0 Tainted: G           OE     5.8.18-100.fc31.x86_64 #1
Hardware name: Dell Inc. Latitude E6420/0K0DNP, BIOS A05 05/24/2011
RIP: 0010:ext4_writepage+0x23e/0x6e0
Code: 8b 45 30 ba 00 10 00 00 31 f6 41 bf fb ff ff ff 48 8b 40 70 48 8b 40 48 e8 2f c3 a0 00 4c 89 ef e8 77 09 e6 ff e9 3d ff ff ff <0f> 0b 49 8b 45 18 48 8b 18 48 89 04 24 49 8d 45 01 48 8b 93 68 ff
RSP: 0018:ffffaeabc01f79e0 EFLAGS: 00010246
RAX: 000fffffc0040045 RBX: ffff92160284e090 RCX: 0000000000000000
RDX: 0000000000080000 RSI: ffffaeabc01f7a50 RDI: fffff69781dacd40
RBP: ffff92160284df18 R08: ffff9216adfd1000 R09: 0000000000030375
R10: 0000000000030320 R11: 0000000000000500 R12: ffffaeabc01f7a50
R13: fffff69781dacd40 R14: 0000000000001000 R15: ffffaeabc01f7b98
FS:  0000000000000000(0000) GS:ffff9216a9a40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f15152cb000 CR3: 000000005aa0a004 CR4: 00000000000606e0
Call Trace:
 ? clear_page_dirty_for_io+0x1e6/0x230
 ? rmap_walk_anon+0x13f/0x2f0
 pageout+0xed/0x350
 shrink_page_list+0xc27/0xe70
 shrink_inactive_list+0x1c5/0x3b0
 shrink_lruvec+0x36c/0x5d0
 ? do_shrink_slab+0x52/0x2c0
 shrink_node+0x19c/0x680
 balance_pgdat+0x2f7/0x5d0
 kswapd+0x1ed/0x390
 ? __schedule+0x377/0x820
 ? finish_wait+0x80/0x80
 ? balance_pgdat+0x5d0/0x5d0
 kthread+0xfe/0x140
 ? kthread_park+0x90/0x90
 ret_from_fork+0x22/0x30
Modules linked in: uinput ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge nf_conntrack_netbios_ns nf_conntrack_broadcast stp xt_CT llc ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) sunrpc squashfs loop intel_rapl_msr at24 mei_wdt iTCO_wdt intel_rapl_common intel_pmc_bxt mei_hdcp iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel ppdev kvm dell_rbtn dell_laptop iwldvm dell_smm_hwmon irqbypass snd_hda_codec_hdmi rapl intel_cstate mac80211 intel_uncore snd_hda_codec_idt snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_hda_codec libarc4 snd_hda_core dell_wmi iwlwifi
 snd_hwdep dell_smbios wmi_bmof dcdbas joydev pcspkr i2c_i801 sparse_keymap dell_wmi_descriptor snd_seq i2c_smbus cfg80211 snd_seq_device snd_pcm mei_me lpc_ich snd_timer rfkill snd mei soundcore parport_pc parport dell_smo8800 ip_tables i915 i2c_algo_bit drm_kms_helper cec sdhci_pci cqhci drm sdhci crct10dif_pclmul crc32_pclmul crc32c_intel e1000e mmc_core ghash_clmulni_intel serio_raw wmi video fuse