Backtrace

kernel BUG at mm/shmem.c:878!
invalid opcode: 0000 [#1] SMP PTI
CPU: 0 PID: 6659 Comm: Chrome_IOThread Tainted: G           OE     5.8.18-100.fc31.x86_64 #1
Hardware name: Dell Inc. OptiPlex 990/06D7TR, BIOS A11 12/30/2011
RIP: 0010:shmem_undo_range+0x306/0x820
Code: 66 90 fb 66 66 90 66 66 90 48 81 c4 40 01 00 00 5b 5d 41 5c 41 5d 41 5e 41 5f c3 48 c7 c6 f0 df 3d a2 4c 89 f7 e8 7a 55 01 00 <0f> 0b 49 8b 16 49 8b 46 20 f7 c2 00 00 01 00 0f 84 0e fe ff ff 41
RSP: 0018:ffffc0ee42e9fc38 EFLAGS: 00010296
RAX: 0000000000000000 RBX: ffffffffffffffff RCX: 0000000000000027
RDX: 0000000000000027 RSI: 0000000000000086 RDI: ffff9bcbdda18d08
RBP: ffffc0ee42e9fc80 R08: ffff9bcbdda18d00 R09: 0000000000000003
R10: 0000000000000000 R11: 0000000000000001 R12: ffffc0ee42e9fcf8
R13: 000000000000000e R14: ffffe1aa86aa3c80 R15: 00000000000002cf
FS:  00007f1e4f535700(0000) GS:ffff9bcbdda00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fe174036f68 CR3: 000000021a904001 CR4: 00000000000606f0
Call Trace:
 shmem_truncate_range+0x14/0x40
 shmem_evict_inode+0xaa/0x1f0
 ? var_wake_function+0x20/0x20
 evict+0xd1/0x1a0
 __dentry_kill+0xd8/0x170
 dput+0x137/0x2d0
 __fput+0x131/0x250
 task_work_run+0x68/0xa0
 __prepare_exit_to_usermode+0x1b9/0x1e0
 do_syscall_64+0x59/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xa9
RIP: 0033:0x7f1e62a551dd
Code: 00 c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 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 8b 0d 7b 5c 0c 00 f7 d8 64 89 01 48
RSP: 002b:00007f1e4f533ba8 EFLAGS: 00000246 ORIG_RAX: 000000000000000b
RAX: 0000000000000000 RBX: 00007f1e42a2b000 RCX: 00007f1e62a551dd
RDX: ffffd4a83c217241 RSI: 0000000000401000 RDI: 00007f1e42a2b000
RBP: 00007f1e4f533bd0 R08: 00002b55727c5101 R09: 00002b55727c5140
R10: 0000000000000000 R11: 0000000000000246 R12: 00007f1e42a2b000
R13: 3333333333333333 R14: 0000000000401000 R15: 00007f1e4f533c00
Modules linked in: uinput xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc rfkill nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT 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 snd_usb_audio uvcvideo joydev snd_usbmidi_lib videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common snd_rawmidi intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_aloop at24 snd_hda_codec_hdmi kvm mei_hdcp mei_wdt snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio iTCO_wdt intel_pmc_bxt iTCO_vendor_support snd_hda_intel snd_intel_dspcfg snd_hda_codec dcdbas
 irqbypass rapl snd_hda_core intel_cstate snd_hwdep snd_seq intel_uncore pcspkr i2c_i801 snd_seq_device i2c_smbus snd_pcm mei_me mei lpc_ich snd_timer snd soundcore v4l2loopback_dc(OE) videodev binfmt_misc mc ip_tables i915 i2c_algo_bit drm_kms_helper cec drm crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel e1000e serio_raw video fuse