Backtrace

WARNING: CPU: 1 PID: 38 at mm/mmu_notifier.c:502 __mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Modules linked in: uas usb_storage uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc ccm cmac bnep 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 ath9k ath9k_common ath9k_hw sunrpc mac80211 snd_hda_codec_conexant snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio snd_hda_intel ath3k snd_intel_dspcfg intel_rapl_msr snd_intel_sdw_acpi snd_hda_codec mei_hdcp iTCO_wdt at24 btusb intel_pmc_bxt iTCO_vendor_support snd_hda_core ath btrtl uvcvideo vfat fat cfg80211 btbcm videobuf2_vmalloc btintel snd_hwdep videobuf2_memops
 videobuf2_v4l2 bluetooth snd_seq rtsx_usb_ms videobuf2_common memstick snd_seq_device videodev snd_pcm intel_rapl_common x86_pkg_temp_thermal intel_powerclamp ideapad_laptop coretemp platform_profile rapl snd_timer mc intel_cstate sparse_keymap intel_uncore ecdh_generic snd rfkill libarc4 ecc wmi soundcore joydev mei_me pcspkr lpc_ich mei i2c_i801 i2c_smbus zram ip_tables amdgpu iommu_v2 gpu_sched i915 radeon hid_logitech_hidpp drm_ttm_helper ttm i2c_algo_bit drm_kms_helper rtsx_usb_sdmmc mmc_core crct10dif_pclmul crc32_pclmul cec crc32c_intel drm ghash_clmulni_intel r8169 rtsx_usb serio_raw hid_logitech_dj video fuse
CPU: 1 PID: 38 Comm: kcompactd0 Not tainted 5.12.8-300.fc34.x86_64 #1
Hardware name: LENOVO 20351/Lancer 5A2, BIOS 9ACN30WW 01/27/2015
RIP: 0010:__mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Code: a8 89 54 24 04 e8 cd 80 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 11 7e 75 ff <0f> 0b eb eb 41 89 d5 e9 05 7e 75 ff 49 39 de 74 4b 48 c7 c7 18 19
RSP: 0018:ffffa89dc01bfab8 EFLAGS: 00010202
RAX: 0000000000000061 RBX: ffff90985740b218 RCX: 0000000000000000
RDX: 00000000fffffff0 RSI: ffff9098892585c0 RDI: ffff9098892585c0
RBP: ffffa89dc01bfb30 R08: 0000000000000000 R09: ffffa89dc01bf8f0
R10: ffffa89dc01bf8e8 R11: ffffffffa8b45f28 R12: ffff9098518ed9c0
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffffc08916a0
FS:  0000000000000000(0000) GS:ffff909889240000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f239c006118 CR3: 000000010cbf8001 CR4: 00000000001706e0
Call Trace:
 try_to_unmap_one+0x9bc/0xc60
 rmap_walk_file+0x13f/0x2b0
 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+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x22/0x30