Backtrace

BUG: unable to handle page fault for address: 00007f9734b10008
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#3] SMP PTI
CPU: 0 PID: 103 Comm: kswapd0 Tainted: G    B D           5.11.16-300.fc34.x86_64 #1
Hardware name:  /8I945PLGE-RH, BIOS F4 03/31/2006
RIP: 0010:__mmu_notifier_invalidate_range_start+0x21/0x190
Code: bc e6 ff 0f 0b eb e5 66 90 0f 1f 44 00 00 41 57 41 56 41 55 41 54 55 48 89 fd 53 48 83 ec 08 48 8b 47 08 4c 8b a0 b0 03 00 00 <41> 80 7c 24 08 00 0f 85 b2 00 00 00 49 8b 04 24 45 31 ed 48 85 c0
RSP: 0018:ffffa59c80123948 EFLAGS: 00010296
RAX: ffff9a2b1a58f740 RBX: ffff9a2af53d1320 RCX: 000fffffc0002045
RDX: 00007f89f7531000 RSI: 00007f89f752d000 RDI: ffffa59c801239c0
RBP: ffffa59c801239c0 R08: 000000000001b000 R09: 0000000000000008
R10: ffff9a2adcdc7428 R11: ffffa59c80123a50 R12: 00007f9734b10000
R13: ffff9a2b1a58f740 R14: 0000000000000040 R15: 00007f89f752d000
FS:  0000000000000000(0000) GS:ffff9a2b3dc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f9734b10008 CR3: 0000000029a10000 CR4: 00000000000006f0
Call Trace:
 ? page_vma_mapped_walk+0x205/0x890
 try_to_unmap_one+0x9bc/0xc60
 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
 shrink_page_list+0x4d6/0x1000
 shrink_inactive_list+0x132/0x3a0
 shrink_lruvec+0x496/0x6c0
 ? super_cache_count+0x79/0xf0
 shrink_node+0x2b3/0x6e0
 balance_pgdat+0x2fa/0x620
 kswapd+0x1e6/0x360
 ? finish_wait+0x80/0x80
 ? balance_pgdat+0x620/0x620
 kthread+0x11b/0x140
 ? kthread_associate_blkcg+0xa0/0xa0
 ret_from_fork+0x22/0x30
Modules linked in: uinput 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 rfkill nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter sunrpc iTCO_wdt intel_pmc_bxt snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi ledtrig_audio ppdev iTCO_vendor_support snd_hda_intel gpio_ich snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core snd_compress snd_pcm_dmaengine soundwire_cadence snd_hda_codec intel_powerclamp nouveau snd_hda_core ac97_bus snd_hwdep snd_seq mxm_wmi wmi snd_seq_device pcspkr joydev snd_pcm video
 i2c_algo_bit drm_ttm_helper ttm drm_kms_helper snd_timer snd r8169 soundcore cec parport_pc parport i2c_i801 ata_generic pata_acpi lpc_ich i2c_smbus drm zram ip_tables serio_raw fuse
CR2: 00007f9734b10008