Backtrace

WARNING: CPU: 1 PID: 38 at mm/mmu_notifier.c:502 __mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Modules linked in: uinput ccm rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc 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 nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp mei_hdcp at24 kvm_intel iTCO_wdt intel_pmc_bxt iTCO_vendor_support sunrpc ath9k 88x2bu(OE) dell_laptop dell_smm_hwmon uvcvideo ath9k_common ath9k_hw videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 kvm vfat ath3k fat btusb videobuf2_common mac80211 irqbypass videodev rapl btrtl btbcm intel_cstate squashfs intel_uncore
 loop btintel ath bluetooth cfg80211 rtsx_usb_ms snd_hda_codec_realtek memstick snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel mc snd_intel_dspcfg snd_intel_sdw_acpi dell_wmi snd_hda_codec ecdh_generic snd_hda_core dell_smbios ecc dcdbas joydev snd_hwdep snd_seq sparse_keymap wmi_bmof dell_wmi_descriptor snd_seq_device snd_pcm pcspkr i2c_i801 mei_me i2c_smbus mei snd_timer snd libarc4 soundcore lpc_ich dell_rbtn rfkill binfmt_misc zram ip_tables i915 rtsx_usb_sdmmc mmc_core hid_logitech_hidpp crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel i2c_algo_bit drm_kms_helper serio_raw cec drm hid_multitouch r8169 rtsx_usb hid_logitech_dj wmi video fuse
CPU: 1 PID: 38 Comm: kcompactd0 Tainted: G        W  OE     5.12.17-300.fc34.x86_64 #1
Hardware name: Dell Inc. Inspiron 3537/03JPPR, BIOS A12 05/27/2019
RIP: 0010:__mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Code: ba 89 54 24 04 e8 c6 7f ff ff f6 45 20 01 8b 54 24 04 75 16 83 fa f5 75 11 49 83 7f 30 00 74 0e 0f 0b 41 89 d5 e9 d8 59 75 ff <0f> 0b eb eb 41 89 d5 e9 cc 59 75 ff 49 39 de 74 4b 48 c7 c7 80 30
RSP: 0018:ffff9d09c01b3ab8 EFLAGS: 00010202
RAX: 0000000000000061 RBX: ffff8e7653d5d318 RCX: 0000000000000000
RDX: 00000000fffffff0 RSI: ffff8e78972585c0 RDI: ffff8e78972585c0
RBP: ffff9d09c01b3b30 R08: 0000000000000000 R09: ffff9d09c01b38f0
R10: ffff9d09c01b38e8 R11: ffffffffbab45fc8 R12: ffff8e7743617d80
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc043b6a0
FS:  0000000000000000(0000) GS:ffff8e7897240000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055ee8c1dd280 CR3: 00000001cfa10001 CR4: 00000000001706e0
Call Trace:
 try_to_unmap_one+0xa3c/0xd40
 rmap_walk_file+0x152/0x2e0
 try_to_unmap+0xa6/0xe0
 ? page_remove_rmap+0x330/0x330
 ? anon_vma_ctor+0x40/0x40
 ? page_get_anon_vma+0x80/0x80
 migrate_pages+0x4eb/0xf30
 ? isolate_freepages_block+0x3c0/0x3c0
 ? split_map_pages+0x160/0x160
 ? migrate_page_states+0x290/0x290
 compact_zone+0x5f8/0xd10
 ? dequeue_entity+0xc9/0x460
 ? __switch_to_asm+0x42/0x70
 proactive_compact_node+0x7b/0xb0
 kcompactd+0x2cf/0x350
 ? finish_wait+0x80/0x80
 ? kcompactd_do_work+0x250/0x250
 kthread+0x127/0x150
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x22/0x30