Backtrace

WARNING: CPU: 1 PID: 28 at mm/mmu_notifier.c:502 __mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Modules linked in: snd_seq_dummy snd_hrtimer uinput rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp tun 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 ccm ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop rtl8723be btcoexist uvcvideo rtl8723_common rtl_pci videobuf2_vmalloc rtlwifi videobuf2_memops videobuf2_v4l2 videobuf2_common intel_soc_dts_thermal intel_powerclamp videodev coretemp mc mac80211 snd_hda_codec_hdmi intel_cstate snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_intel snd_intel_dspcfg at24 soundwire_intel soundwire_generic_allocation
 snd_soc_core btusb snd_compress cfg80211 iTCO_wdt snd_pcm_dmaengine soundwire_cadence intel_pmc_bxt iTCO_vendor_support snd_hda_codec mei_hdcp intel_rapl_msr snd_hda_core ac97_bus snd_hwdep pcspkr libarc4 i2c_i801 joydev i2c_smbus wmi_bmof snd_seq snd_seq_device hci_uart btqca lpc_ich snd_pcm btrtl btbcm btintel bluetooth snd_timer snd soundcore ideapad_laptop platform_profile sparse_keymap ecdh_generic processor_thermal_device processor_thermal_rfim ecc processor_thermal_mbox processor_thermal_rapl intel_rapl_common int3403_thermal int3400_thermal intel_soc_dts_iosf acpi_thermal_rel int340x_thermal_zone rfkill_gpio rfkill mei_txe mei ip_tables i915 rtsx_pci_sdmmc mmc_core hid_logitech_hidpp i2c_algo_bit crct10dif_pclmul crc32_pclmul drm_kms_helper crc32c_intel cec ghash_clmulni_intel drm rtsx_pci r8169 serio_raw hid_logitech_dj wmi video i2c_hid pwm_lpss_platform pwm_lpss fuse
CPU: 1 PID: 28 Comm: kcompactd0 Tainted: G        W         5.11.22-100.fc32.x86_64 #1
Hardware name: LENOVO 80MH/Lenovo ideapad 1, BIOS CCCN12WW(V1.01) 03/23/2015
RIP: 0010:__mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Code: 92 89 54 24 04 e8 47 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 46 af 76 ff <0f> 0b eb eb 41 89 d5 e9 3a af 76 ff 0f be f1 48 c7 c7 90 9a 3c 92
RSP: 0018:ffffbb7340133ac8 EFLAGS: 00010202
RAX: 0000000000000061 RBX: ffff9801037abc98 RCX: 0000000000000000
RDX: 00000000fffffff0 RSI: ffff980177698ac0 RDI: ffff980177698ac0
RBP: ffffbb7340133b40 R08: 0000000000000000 R09: ffffbb7340133900
R10: ffffbb73401338f8 R11: ffffffff92b44f48 R12: ffff98012b757780
R13: 0000000000000000 R14: 0000000000000000 R15: ffffffffc0583840
FS:  0000000000000000(0000) GS:ffff980177680000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fd458eef298 CR3: 0000000003f06000 CR4: 00000000001006e0
Call Trace:
 try_to_unmap_one+0x9c9/0xc70
 ? migrate_page_move_mapping+0x1f0/0x6c0
 ? mem_cgroup_charge_statistics.constprop.0+0x21/0x50
 rmap_walk_file+0x13f/0x2b0
 try_to_unmap+0xbf/0xd0
 ? page_remove_rmap+0x330/0x330
 ? page_not_mapped+0x20/0x20
 ? page_get_anon_vma+0x80/0x80
 migrate_pages+0x5ae/0xf10
 ? isolate_freepages_block+0x3a0/0x3a0
 ? split_map_pages+0x150/0x150
 ? migrate_page_copy+0x400/0x400
 compact_zone+0x6d9/0xd40
 ? psi_group_change+0x41/0x220
 ? __switch_to+0x7b/0x450
 proactive_compact_node+0x72/0xa0
 kcompactd+0x2ce/0x350
 ? finish_wait+0x80/0x80
 ? kcompactd_do_work+0x250/0x250
 kthread+0x11b/0x140
 ? __kthread_bind_mask+0x60/0x60
 ret_from_fork+0x22/0x30