Backtrace

BUG: unable to handle page fault for address: 000000000079d270
#PF: supervisor write access in kernel mode
#PF: error_code(0x0002) - not-present page
PGD 0 P4D 0 
Oops: 0002 [#1] SMP PTI
CPU: 6 PID: 136 Comm: kswapd0 Tainted: G        W         5.8.18-100.fc31.x86_64 #1
Hardware name: Acer TravelMate X3410-M/Apus_KL, BIOS V1.01 11/07/2018
RIP: 0010:native_queued_spin_lock_slowpath+0x184/0x1c0
Code: 74 98 f3 90 8b 07 85 c0 74 f2 eb f6 c1 ee 12 83 e0 03 83 ee 01 48 c1 e0 05 48 63 f6 48 05 c0 af 02 00 48 03 04 f5 40 09 4b 9f <48> 89 10 8b 42 08 85 c0 75 09 f3 90 8b 42 08 85 c0 74 f7 48 8b 32
RSP: 0018:ffffb9a0c02d79d0 EFLAGS: 00010002
RAX: 000000000079d270 RBX: ffff9a80ee9dda78 RCX: 00000000001c0000
RDX: ffff9a825edaafc0 RSI: 0000000000003ffe RDI: ffff9a80ee9dda8c
RBP: ffffb9a0c02d7a78 R08: 00000000001c0000 R09: fffff8e98c5b9e08
R10: 0000000000000010 R11: ffffb9a0c02d7a38 R12: ffffb9a0c02d7a10
R13: ffff9a80ee9ddaa0 R14: 0000000000000002 R15: ffff9a825c66a740
FS:  0000000000000000(0000) GS:ffff9a825ed80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000079d270 CR3: 0000000189a0a005 CR4: 00000000003606e0
Call Trace:
 _raw_spin_lock_irq+0x21/0x24
 rwsem_down_read_slowpath+0x9b/0x4f0
 page_lock_anon_vma_read+0x7f/0xe0
 rmap_walk_anon+0x1a7/0x2f0
 page_referenced+0x125/0x150
 ? rmap_walk_file+0x2f0/0x2f0
 ? page_get_anon_vma+0x80/0x80
 shrink_active_list+0x1e8/0x510
 shrink_lruvec+0x559/0x5d0
 ? do_shrink_slab+0x52/0x2c0
 ? ttwu_do_wakeup+0x19/0x150
 shrink_node+0x19c/0x680
 balance_pgdat+0x2f7/0x5d0
 kswapd+0x1ed/0x390
 ? __schedule+0x377/0x820
 ? finish_wait+0x80/0x80
 ? balance_pgdat+0x5d0/0x5d0
 kthread+0xfe/0x140
 ? kthread_park+0x90/0x90
 ret_from_fork+0x22/0x30
Modules linked in: rfcomm ccm xt_CHECKSUM xt_MASQUERADE nf_nat_tftp nf_conntrack_tftp tun bridge stp llc nf_conntrack_netbios_ns nf_conntrack_broadcast xt_CT ip6t_REJECT nf_reject_ipv6 ip6t_rpfilter ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_raw ip6table_security iptable_nat nf_nat iptable_mangle iptable_raw iptable_security nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc vfat fat squashfs loop snd_hda_codec_hdmi snd_soc_skl snd_soc_sst_ipc snd_soc_sst_dsp snd_hda_ext_core snd_soc_acpi_intel_match snd_soc_acpi snd_soc_core snd_hda_codec_realtek x86_pkg_temp_thermal intel_powerclamp snd_hda_codec_generic coretemp iwlmvm ledtrig_audio snd_compress ac97_bus snd_pcm_dmaengine snd_hda_intel kvm_intel snd_intel_dspcfg snd_hda_codec iTCO_wdt mac80211 intel_pmc_bxt snd_hda_core iTCO_vendor_support kvm ee1004 mei_hdcp libarc4
 snd_hwdep intel_rapl_msr snd_seq btusb uvcvideo btrtl iwlwifi btbcm btintel irqbypass snd_seq_device bluetooth videobuf2_vmalloc snd_pcm videobuf2_memops rapl intel_cstate videobuf2_v4l2 cfg80211 videobuf2_common intel_uncore snd_timer pcspkr acer_wmi intel_wmi_thunderbolt snd sparse_keymap videodev i2c_i801 i2c_smbus ecdh_generic wmi_bmof soundcore rfkill mc ecc joydev processor_thermal_device idma64 ucsi_acpi mei_me intel_rapl_common typec_ucsi intel_xhci_usb_role_switch roles mei intel_soc_dts_iosf typec intel_pch_thermal int3403_thermal int340x_thermal_zone acer_wireless int3400_thermal acpi_thermal_rel acpi_pad ip_tables i915 i2c_algo_bit drm_kms_helper cec crct10dif_pclmul crc32_pclmul drm crc32c_intel ghash_clmulni_intel serio_raw r8169 wmi video pinctrl_sunrisepoint pinctrl_intel fuse
CR2: 000000000079d270