Backtrace

WARNING: CPU: 0 PID: 0 at kernel/sched/fair.c:3307 update_blocked_averages+0x6cd/0x720
Modules linked in: 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 sunrpc intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel iwldvm snd_hda_codec_hdmi mac80211 libarc4 kvm iwlwifi irqbypass snd_hda_codec_idt snd_hda_codec_generic snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec rapl cfg80211 intel_cstate snd_hda_core intel_uncore snd_hwdep snd_seq snd_seq_device snd_pcm snd_timer at24 ppdev mei_wdt mei_hdcp iTCO_wdt intel_pmc_bxt iTCO_vendor_support dell_rbtn mei_me dell_laptop rfkill dell_smm_hwmon joydev
 parport_pc pcspkr snd soundcore i2c_i801 mei parport lpc_ich i2c_smbus dell_wmi ledtrig_audio sparse_keymap dell_smbios dcdbas wmi_bmof dell_wmi_descriptor dell_smo8800 binfmt_misc zram ip_tables i915 nouveau hid_logitech_hidpp drm_ttm_helper mxm_wmi i2c_algo_bit ttm drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel e1000e cec ghash_clmulni_intel drm sdhci_pci serio_raw cqhci sdhci mmc_core hid_logitech_dj wmi video fuse
CPU: 0 PID: 0 Comm: swapper/0 Not tainted 5.14.11-200.fc34.x86_64 #1
Hardware name: Dell Inc. Latitude E6420/032T9K, BIOS A26 09/14/2018
RIP: 0010:update_blocked_averages+0x6cd/0x720
Code: e0 3e 5c 86 c6 05 ae 8b df 01 01 e8 19 57 aa 00 0f 0b e9 2b fa ff ff 48 c7 c7 c8 42 5c 86 c6 05 90 8b df 01 01 e8 ff 56 aa 00 <0f> 0b 41 8b 87 38 01 00 00 e9 11 fc ff ff 48 c7 c7 48 3e 5c 86 c6
RSP: 0018:ffffb64000003f20 EFLAGS: 00010082
RAX: 0000000000000048 RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff8ce4b5a18a08 RSI: 0000000000000001 RDI: ffff8ce4b5a18a00
RBP: ffff8ce4b5a2bec0 R08: 0000000000000000 R09: ffffb64000003d58
R10: ffffb64000003d50 R11: ffffffff86d47468 R12: ffff8ce4b5a2b880
R13: 0000000000000000 R14: ffff8ce4b5a2c000 R15: ffff8ce4b5a2b740
FS:  0000000000000000(0000) GS:ffff8ce4b5a00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000055f6e3749658 CR3: 00000000acc10003 CR4: 00000000000606f0
Call Trace:
 <IRQ>
 ? __hrtimer_run_queues+0x146/0x250
 run_rebalance_domains+0x44/0x60
 __do_softirq+0xd0/0x282
 __irq_exit_rcu+0xc7/0xf0
 sysvec_apic_timer_interrupt+0x72/0x90
 </IRQ>
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:cpuidle_enter_state+0xc7/0x350
Code: 8b 3d a5 d2 67 7a e8 b8 5f 78 ff 49 89 c5 0f 1f 44 00 00 31 ff e8 d9 77 78 ff 45 84 ff 0f 85 fa 00 00 00 fb 66 0f 1f 44 00 00 <45> 85 f6 0f 88 06 01 00 00 49 63 d6 4c 2b 2c 24 48 8d 04 52 48 8d
RSP: 0018:ffffffff86c03e68 EFLAGS: 00000246
RAX: ffff8ce4b5a2b6c0 RBX: 0000000000000002 RCX: 000000000000001f
RDX: 0000000000000000 RSI: 000000003350f535 RDI: 0000000000000000
RBP: ffffd63fffa00000 R08: 000000162a58fea2 R09: 0000000000000018
R10: 0000000000000142 R11: 0000000000000035 R12: ffffffff86e5f360
R13: 000000162a58fea2 R14: 0000000000000002 R15: 0000000000000000
 ? cpuidle_enter_state+0xb7/0x350
 cpuidle_enter+0x29/0x40
 do_idle+0x1ce/0x270
 cpu_startup_entry+0x19/0x20
 start_kernel+0x970/0x980
 ? apply_microcode_early.cold+0x8/0x1d
 secondary_startup_64_no_verify+0xc2/0xcb