Backtrace

WARNING: CPU: 1 PID: 37 at mm/mmu_notifier.c:502 __mmu_notifier_invalidate_range_start.cold+0x40/0x4a
Modules linked in: rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun ccm nft_objref nf_conntrack_netbios_ns nf_conntrack_broadcast nft_fib_inet nft_fib_ipv4 nft_fib_ipv6 nft_fib nft_reject_inet nf_reject_ipv4 nf_reject_ipv6 nft_reject nft_ct nft_chain_nat ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_raw iptable_security ip_set nf_tables cmac bnep nfnetlink vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) sunrpc squashfs loop snd_hda_codec_hdmi snd_hda_codec_conexant snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core snd_compress snd_pcm_dmaengine soundwire_cadence uvcvideo snd_hda_codec btusb snd_hda_core ac97_bus btrtl videobuf2_vmalloc snd_hwdep videobuf2_memops videobuf2_v4l2 btbcm btintel videobuf2_common bluetooth videodev rtsx_usb_ms snd_seq mc memstick snd_seq_device
 intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp snd_pcm snd_timer ecdh_generic coretemp kvm_intel ecc kvm iTCO_wdt iwldvm mac80211 libarc4 dell_laptop mei_hdcp intel_pmc_bxt ledtrig_audio irqbypass rapl at24 iTCO_vendor_support snd soundcore intel_cstate iwlwifi dell_smm_hwmon cfg80211 rfkill intel_uncore joydev i2c_i801 mei_me mei dell_wmi dell_smbios i2c_smbus dcdbas lpc_ich sparse_keymap dell_wmi_descriptor wmi_bmof pcspkr binfmt_misc i915 rtsx_usb_sdmmc mmc_core i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec drm ghash_clmulni_intel rtsx_usb serio_raw r8169 xhci_pci xhci_pci_renesas wmi video iptable_filter ip6table_filter ip6_tables br_netfilter bridge stp llc arp_tables fuse ip_tables
CPU: 1 PID: 37 Comm: kcompactd0 Tainted: G           OE     5.10.8-100.fc32.x86_64 #1
Hardware name: Dell Inc. Inspiron 5520/04G65K, BIOS A14 05/13/2013
RIP: 0010:__mmu_notifier_invalidate_range_start.cold+0x40/0x4a
Code: 59 3c 85 48 c7 c7 a8 59 3c 85 48 0f 44 c8 e8 24 8b ff ff 41 83 fc f5 75 11 f6 45 20 01 75 0b 41 bd f5 ff ff ff e9 10 40 77 ff <0f> 0b 45 89 e5 e9 06 40 77 ff 0f be f1 48 c7 c7 50 5c 3c 85 e8 f4
RSP: 0018:ffffbb2d4019fad0 EFLAGS: 00210293
RAX: 0000000000000061 RBX: ffff94521a0e8418 RCX: 0000000000000000
RDX: ffff9453472669e0 RSI: ffff945347258a80 RDI: ffff945347258a80
RBP: ffffbb2d4019fb40 R08: 0000000000000000 R09: ffffbb2d4019f908
R10: ffffbb2d4019f900 R11: ffffffff85b44748 R12: 00000000fffffff0
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc05c3260
FS:  0000000000000000(0000) GS:ffff945347240000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fc00464d008 CR3: 0000000087a10003 CR4: 00000000001706e0
Call Trace:
 try_to_unmap_one+0x9cc/0xc30
 ? migrate_page_move_mapping+0x1fb/0x6b0
 ? mem_cgroup_charge_statistics.constprop.0+0x21/0x50
 rmap_walk_file+0x13f/0x2b0
 try_to_unmap+0xbf/0xd0
 ? page_remove_rmap+0x510/0x510
 ? page_not_mapped+0x20/0x20
 ? page_get_anon_vma+0x80/0x80
 migrate_pages+0x34b/0xe00
 ? isolate_freepages_block+0x3a0/0x3a0
 ? split_map_pages+0x150/0x150
 ? migrate_page_copy+0x400/0x400
 compact_zone+0x6d7/0xd50
 kcompactd_do_work+0xdb/0x1d0
 kcompactd+0xb1/0x350
 ? add_wait_queue_exclusive+0x70/0x70
 ? kcompactd_do_work+0x1d0/0x1d0
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30