Backtrace

WARNING: CPU: 6 PID: 41778 at kernel/rcu/tree_plugin.h:316 rcu_note_context_switch+0x594/0x5d0
Modules linked in: snd_seq_midi snd_seq_midi_event tun typec_displayport 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 nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter qrtr bnep sunrpc dm_crypt squashfs loop elan_i2c snd_soc_skl snd_soc_hdac_hda snd_hda_codec_hdmi snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp iwlmvm snd_soc_acpi_intel_match snd_soc_acpi iTCO_wdt snd_soc_core intel_pmc_bxt snd_ctl_led snd_hda_codec_realtek iTCO_vendor_support ee1004 intel_tcc_cooling mac80211 x86_pkg_temp_thermal snd_hda_codec_generic mei_hdcp
 snd_compress mei_wdt intel_powerclamp coretemp mei_pxp ac97_bus libarc4 snd_pcm_dmaengine intel_rapl_msr kvm_intel snd_hda_intel snd_intel_dspcfg kvm snd_intel_sdw_acpi iwlwifi snd_usb_audio snd_hda_codec irqbypass rapl intel_cstate intel_uncore snd_hda_core snd_usbmidi_lib i2c_i801 cfg80211 think_lmi snd_rawmidi cdc_ether pcspkr firmware_attributes_class btusb wmi_bmof usbnet intel_wmi_thunderbolt snd_hwdep i2c_smbus snd_seq r8152 btrtl snd_seq_device mii uvcvideo btbcm snd_pcm videobuf2_vmalloc btintel videobuf2_memops snd_timer videobuf2_v4l2 processor_thermal_device_pci_legacy thunderbolt processor_thermal_device videobuf2_common bluetooth videodev mei_me processor_thermal_rfim processor_thermal_mbox mei processor_thermal_rapl idma64 joydev mc thinkpad_acpi ecdh_generic intel_rapl_common intel_xhci_usb_role_switch intel_soc_dts_iosf ledtrig_audio intel_pch_thermal platform_profile rfkill snd soundcore int3403_thermal int340x_thermal_zone int3400_thermal acpi_thermal_rel
 acpi_pad zram ip_tables i915 hid_logitech_hidpp i2c_algo_bit ttm drm_kms_helper crct10dif_pclmul nvme crc32_pclmul crc32c_intel cec serio_raw nvme_core ghash_clmulni_intel e1000e drm uas ucsi_acpi usb_storage typec_ucsi typec wmi hid_logitech_dj video ipmi_devintf ipmi_msghandler fuse
CPU: 6 PID: 41778 Comm: systemd-coredum Tainted: G      D           5.16.11-200.fc35.x86_64 #1
Hardware name: LENOVO 20L8S2N70F/20L8S2N70F, BIOS N22ET50W (1.27 ) 11/07/2018
RIP: 0010:rcu_note_context_switch+0x594/0x5d0
Code: 08 4d 89 be 40 08 00 00 49 89 b6 48 08 00 00 48 89 3e e9 6f fd ff ff 48 c7 c7 a0 2e 5e b4 c6 05 63 61 fb 01 01 e8 7f 2c ad 00 <0f> 0b e9 c3 fa ff ff 0f 0b e9 9f fc ff ff 0f 0b e9 a1 fd ff ff 0f
RSP: 0018:ffff9df983c37d28 EFLAGS: 00010092
RAX: 000000000000003f RBX: ffff8d96ce9b2400 RCX: 0000000000000000
RDX: 0000000000000002 RSI: ffffffffb4634885 RDI: 00000000ffffffff
RBP: 0000000000000000 R08: 0000000000000000 R09: ffff9df983c37b68
R10: ffff9df983c37b60 R11: ffffffffb4f462a8 R12: ffff9df983c37e40
R13: ffff8d9524da0000 R14: ffff8d96ce9b1640 R15: ffff8d9524da0000
FS:  0000000000000000(0000) GS:ffff8d96ce980000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fff47a61ff8 CR3: 0000000084e10005 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 <TASK>
 ? __switch_to+0x114/0x440
 __schedule+0x9e/0xfa0
 ? free_unref_page_commit.constprop.0+0x97/0x150
 ? preempt_count_add+0x68/0xa0
 ? _raw_spin_lock_irqsave+0x26/0x50
 schedule+0x4e/0xc0
 synchronize_rcu_expedited+0x1ec/0x320
 ? kvfree_call_rcu+0x2b0/0x2b0
 ? do_wait_intr_irq+0xa0/0xa0
 ? umount_tree+0x227/0x320
 namespace_unlock+0xaa/0x170
 put_mnt_ns+0x67/0x90
 free_nsproxy+0x17/0x1b0
 do_exit+0x35f/0xb40
 ? exit_to_user_mode_prepare+0x229/0x230
 rewind_stack_do_exit+0x17/0x17
RIP: 0033:0x7fcf2095fef7
Code: Unable to access opcode bytes at RIP 0x7fcf2095fecd.
RSP: 002b:00007fff47a61fe8 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
RAX: 0000000000000000 RBX: 00007fcf1fd6e9c0 RCX: 00007fcf2095fef7
RDX: 000055ad6da5f5b1 RSI: 000055a837169010 RDI: 0000000000000006
RBP: 0000000000000006 R08: 000055a837191df0 R09: 00007fcf20d9af59
R10: 00007fff47a61134 R11: 0000000000000246 R12: 0000000000000000
R13: 0000000000000000 R14: 0000000000000000 R15: 00007fff47a67290
 </TASK>