Backtrace

WARNING: CPU: 1 PID: 38 at mm/mmu_notifier.c:502 __mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Modules linked in: tun uinput rfcomm snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nft_objref nf_conntrack_tftp bridge stp llc 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 nls_utf8 hfsplus btusb btrtl btbcm btintel bluetooth ecdh_generic ecc ses enclosure scsi_transport_sas joydev bcm5974 apple_mfi_fastcharge intel_rapl_msr mei_hdcp iTCO_wdt intel_rapl_common intel_pmc_bxt iTCO_vendor_support x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm applesmc snd_hda_codec_cirrus snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi irqbypass snd_hda_intel rapl snd_intel_dspcfg intel_cstate
 snd_intel_sdw_acpi snd_hda_codec intel_uncore wl(POE) pcspkr snd_hda_core snd_hwdep snd_seq lpc_ich cfg80211 snd_seq_device i2c_i801 snd_pcm i2c_smbus thunderbolt snd_timer snd mei_me rfkill soundcore mei sbs acpi_als kfifo_buf sbshc industrialio apple_bl zram ip_tables i915 crct10dif_pclmul crc32_pclmul crc32c_intel i2c_algo_bit drm_kms_helper ghash_clmulni_intel cec uas drm usb_storage video fuse hid_apple facetimehd(OE) videobuf2_dma_sg videobuf2_memops videobuf2_v4l2 videobuf2_common videodev mc
CPU: 1 PID: 38 Comm: kcompactd0 Tainted: P           OE     5.12.8-300.fc34.x86_64 #1
Hardware name: Apple Inc. MacBookPro11,1/Mac-189A3D4F975D5FFC, BIOS 159.0.0.0.0 02/05/2020
RIP: 0010:__mmu_notifier_invalidate_range_start.cold+0x4a/0x56
Code: 8c 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:ffff9ebb4018bab8 EFLAGS: 00210202
RAX: 0000000000000061 RBX: ffff92ad40dc9918 RCX: 0000000000000000
RDX: 00000000fffffff0 RSI: ffff92ade72985c0 RDI: ffff92ade72985c0
RBP: ffff9ebb4018bb30 R08: 0000000000000000 R09: ffff9ebb4018b8f0
R10: ffff9ebb4018b8e8 R11: ffffffff8cb45f28 R12: ffff92accf267d80
R13: 0000000000000000 R14: 0000000000000001 R15: ffffffffc04c06a0
FS:  0000000000000000(0000) GS:ffff92ade7280000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f380671c010 CR3: 000000024ea10004 CR4: 00000000001706e0
Call Trace:
 try_to_unmap_one+0x9bc/0xc60
 ? migrate_page_move_mapping+0xec/0x740
 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
 ? __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