Backtrace

BUG: unable to handle page fault for address: 0000000200000028
#PF: supervisor read access in kernel mode
#PF: error_code(0x0000) - not-present page
PGD 0 P4D 0 
Oops: 0000 [#1] SMP PTI
CPU: 0 PID: 114 Comm: kswapd0 Tainted: G           OE     5.11.18-300.fc34.x86_64 #1
Hardware name: LENOVO 20CLS06D00/20CLS06D00, BIOS N10ET38W (1.17 ) 08/20/2015
RIP: 0010:iput+0xb5/0x1a0
Code: 48 8b 05 8e 8a 9c 01 48 85 c0 74 0c 48 8b 78 08 48 89 ee e8 6d 05 01 00 eb b2 48 8b 5d 28 48 8b 4b 30 a8 08 0f 85 df 00 00 00 <48> 8b 49 28 48 85 c9 74 63 48 89 ef e8 3a 4f ab 00 85 c0 48 8b 85
RSP: 0018:ffffb21f001f7b70 EFLAGS: 00010246
RAX: 0000000000000000 RBX: ffff996758489800 RCX: 0000000200000000
RDX: 0000000000000001 RSI: ffff9966e6e6b4a8 RDI: ffff9966e6e6b4a8
RBP: ffff9966e6e6b420 R08: ffff9966ceccda50 R09: ffff9967d9b27b60
R10: 0000000000000000 R11: 0000000000000000 R12: ffff9966e6e6b4a8
R13: ffff9966ceccdf58 R14: ffff9967d8489870 R15: 0000000000000400
FS:  0000000000000000(0000) GS:ffff996906000000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000000200000028 CR3: 000000008e6c8006 CR4: 00000000003706f0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 __dentry_kill+0xe1/0x180
 shrink_dentry_list+0x4e/0xc0
 prune_dcache_sb+0x44/0x50
 super_cache_scan+0x12f/0x1f0
 do_shrink_slab+0x142/0x240
 shrink_slab+0x164/0x280
 shrink_node+0x2c8/0x6e0
 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 rfcomm snd_seq_dummy snd_hrtimer vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc ccm 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 nf_tables ebtable_nat ebtable_broute 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 nfnetlink ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter cmac bnep sunrpc snd_usb_audio snd_usbmidi_lib snd_rawmidi btusb btrtl btbcm btintel bluetooth uvcvideo videobuf2_vmalloc videobuf2_memops videobuf2_v4l2 videobuf2_common videodev ecdh_generic mc ecc rmi_smbus rmi_core intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel kvm at24
 mei_hdcp mei_wdt iTCO_wdt iwlmvm intel_pmc_bxt iTCO_vendor_support mac80211 snd_hda_codec_realtek snd_hda_codec_generic snd_hda_codec_hdmi snd_hda_intel snd_intel_dspcfg soundwire_intel soundwire_generic_allocation snd_soc_core libarc4 snd_compress snd_pcm_dmaengine soundwire_cadence irqbypass iwlwifi snd_hda_codec rapl intel_cstate snd_hda_core intel_uncore ac97_bus snd_hwdep snd_seq cfg80211 joydev pcspkr snd_seq_device i2c_i801 intel_pch_thermal wmi_bmof i2c_smbus snd_pcm thinkpad_acpi mei_me mei snd_timer platform_profile ledtrig_audio lpc_ich snd soundcore rfkill zram ip_tables i915 rtsx_pci_sdmmc mmc_core i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel e1000e drm serio_raw rtsx_pci wmi video uas usb_storage fuse
CR2: 0000000200000028