Backtrace

WARNING: CPU: 0 PID: 40 at mm/mmu_notifier.c:502 __mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Modules linked in: snd_seq_dummy snd_hrtimer rfcomm 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 nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp iwlmvm coretemp kvm_intel mac80211 uvcvideo snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi libarc4 snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation mei_hdcp videobuf2_vmalloc snd_soc_core videobuf2_memops at24 iTCO_wdt iwlwifi intel_pmc_bxt videobuf2_v4l2 iTCO_vendor_support kvm videobuf2_common dell_laptop ledtrig_audio dell_smm_hwmon snd_compress irqbypass
 snd_pcm_dmaengine rapl videodev soundwire_cadence btusb intel_cstate btrtl btbcm intel_uncore btintel snd_hda_codec cfg80211 snd_hda_core bluetooth dell_wmi rtsx_usb_ms ac97_bus snd_hwdep snd_seq mc memstick dell_smbios snd_seq_device dcdbas snd_pcm sparse_keymap dell_wmi_descriptor wmi_bmof joydev pcspkr i2c_i801 i2c_smbus mei_me ecdh_generic lpc_ich ecc snd_timer mei snd soundcore dell_rbtn rfkill acpi_pad zram ip_tables i915 i2c_algo_bit drm_kms_helper cec hid_multitouch crct10dif_pclmul drm crc32_pclmul crc32c_intel ghash_clmulni_intel serio_raw r8169 wmi video i2c_hid rtsx_usb_sdmmc mmc_core rtsx_usb fuse
CPU: 0 PID: 40 Comm: kcompactd0 Not tainted 5.11.12-300.fc34.x86_64 #1
Hardware name: Dell Inc. Inspiron 5558/, BIOS A18 12/30/2019
RIP: 0010:__mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Code: b8 89 54 24 04 e8 02 89 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 76 fa 76 ff <0f> 0b eb eb 41 89 d5 e9 6a fa 76 ff 0f be f1 48 c7 c7 38 7f 3c b8
RSP: 0018:ffffb69ac0197ab8 EFLAGS: 00010202
RAX: 0000000000000061 RBX: ffff96e403437a18 RCX: 0000000000000000
RDX: 00000000fffffff0 RSI: ffff96e51ba18ac0 RDI: ffff96e51ba18ac0
RBP: ffffb69ac0197b30 R08: 0000000000000000 R09: ffffb69ac01978f0
R10: ffffb69ac01978e8 R11: ffffffffb8b44f08 R12: ffff96e446fabd20
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc04d2840
FS:  0000000000000000(0000) GS:ffff96e51ba00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f535f72f000 CR3: 0000000108a10006 CR4: 00000000001706f0
Call Trace:
 try_to_unmap_one+0x9bc/0xc60
 ? migrate_page_move_mapping+0x1f0/0x6b0
 rmap_walk_file+0x13f/0x2b0
 try_to_unmap+0xa6/0xe0
 ? page_remove_rmap+0x330/0x330
 ? page_not_mapped+0x20/0x20
 ? 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+0x646/0xdb0
 ? __switch_to_asm+0x42/0x70
 proactive_compact_node+0x7b/0xb0
 kcompactd+0x2cf/0x350
 ? finish_wait+0x80/0x80
 ? kcompactd_do_work+0x250/0x250
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x22/0x30