Backtrace

WARNING: CPU: 0 PID: 6281 at kernel/rcu/tree_plugin.h:332 rcu_note_context_switch+0x303/0x320
Modules linked in: snd_seq_midi snd_seq_midi_event rndis_host cdc_ether usbnet mii cdc_acm rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace nfs_localio netfs tun uinput rfcomm snd_seq_dummy snd_hrtimer nft_masq nft_reject_ipv4 act_csum cls_u32 sch_htb nf_nat_tftp nf_conntrack_tftp bridge stp llc nf_nat_sip nf_conntrack_sip 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 nf_log_syslog nft_log nft_ct nft_chain_nat 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 nf_tables ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter ip_tables qrtr bnep it87 hwmon_vid sunrpc binfmt_misc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp at24 coretemp iTCO_wdt kvm_intel intel_pmc_bxt iTCO_vendor_support ppdev mei_hdcp mei_pxp kvm
 irqbypass snd_hda_codec_alc882 rapl snd_hda_codec_realtek_lib btusb snd_hda_codec_generic btrtl intel_cstate btintel snd_hda_codec_intelhdmi snd_hda_codec_nvhdmi intel_uncore snd_hda_codec_hdmi btbcm i2c_i801 snd_soc_rt5640 mei_me btmtk snd_soc_rl6231 pcspkr snd_hda_intel i2c_smbus snd_hda_codec bluetooth snd_usb_audio snd_soc_core snd_hda_core snd_usbmidi_lib mei snd_intel_dspcfg e1000e parport_pc mc snd_compress snd_intel_sdw_acpi ac97_bus snd_pcm_dmaengine snd_hwdep snd_ump lpc_ich snd_seq rfkill snd_rawmidi vfat snd_seq_device parport snd_pcm fat snd_timer snd soundcore acpi_pad joydev dm_multipath loop nfnetlink zram lz4hc_compress lz4_compress dm_crypt hid_logitech_hidpp hid_microsoft hid_logitech_dj ff_memless i915 nouveau drm_ttm_helper gpu_sched nvme drm_gpuvm drm_exec nvme_core mxm_wmi i2c_algo_bit drm_buddy polyval_clmulni ttm ghash_clmulni_intel nvme_keyring nvme_auth drm_display_helper intel_oc_wdt video cec wmi scsi_dh_rdac scsi_dh_emc scsi_dh_alua ntsync i2c_dev fuse
CPU: 0 UID: 0 PID: 6281 Comm: master Tainted: G      D W           6.17.8-200.fc42.x86_64 #1 PREEMPT(lazy) 
Tainted: [D]=DIE, [W]=WARN
Hardware name: Gigabyte Technology Co., Ltd. Z97X-SLI/Z97X-SLI-CF, BIOS F9 09/18/2015
RIP: 0010:rcu_note_context_switch+0x303/0x320
Code: ba 02 00 00 00 be 01 00 00 00 48 89 df e8 45 f7 fe ff e9 e0 fd ff ff 48 c7 c7 b8 d7 7f b9 c6 05 c3 84 76 02 01 e8 dd 89 f1 ff <0f> 0b e9 42 fd ff ff 0f 0b e9 4a ff ff ff 0f 0b e9 2c ff ff ff 0f
RSP: 0018:ffffcf714d2bfd78 EFLAGS: 00010046
RAX: 0000000000000000 RBX: ffff8bd4394e29c0 RCX: 0000000000000027
RDX: ffff8bdb0f81cf88 RSI: 0000000000000001 RDI: ffff8bdb0f81cf80
RBP: ffff8bdb0f8334c0 R08: 0000000000000000 R09: ffffcf714d2bfc20
R10: ffffffffba2e6470 R11: 00000001000150d6 R12: 0000000000000000
R13: 0000000000000000 R14: ffffffffba371d68 R15: 0000000000000004
FS:  0000000000000000(0000) GS:ffff8bdb54647000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000560fe35ad048 CR3: 000000011ee2c004 CR4: 00000000001726f0
Call Trace:
 <TASK>
 __schedule+0xd1/0x7b0
 ? xas_load+0x11/0x100
 ? prepare_to_wait_event+0x58/0x1c0
 schedule+0x27/0x80
 synchronize_rcu_expedited+0x218/0x270
 ? __pfx_autoremove_wake_function+0x10/0x10
 ? __pfx_wait_rcu_exp_gp+0x10/0x10
 namespace_unlock+0x240/0x300
 free_nsproxy+0x16/0x180
 do_exit+0x1d3/0x440
 ? __list_del_entry_valid_or_report+0xd8/0x110
 make_task_dead+0x8d/0x90
 rewind_stack_and_make_dead+0x16/0x20
RIP: 0033:0x7f94b62200ce
Code: Unable to access opcode bytes at 0x7f94b62200a4.
RSP: 002b:00007ffee570de78 EFLAGS: 00000207 ORIG_RAX: 00000000000000e9
RAX: ffffffffffffffda RBX: 000000000000003c RCX: 00007f94b62200ce
RDX: 000000000000003c RSI: 0000000000000002 RDI: 000000000000000f
RBP: 00007ffee570ded0 R08: 0000000000000007 R09: 0000560fe35a7377
R10: 00007ffee570deac R11: 0000000000000207 R12: 0000000000000000
R13: 0000560fe35a7fc0 R14: 00007f94b639c7ec R15: 0000560fe35a82c0
 </TASK>