Backtrace

WARNING: CPU: 1 PID: 209 at kernel/sched/fair.c:3307 update_blocked_averages+0x6cd/0x720
Modules linked in: rfcomm 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 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 bnep sunrpc vfat fat snd_soc_skl snd_soc_hdac_hda snd_hda_ext_core snd_soc_sst_ipc snd_soc_sst_dsp mei_hdcp iTCO_wdt snd_soc_acpi_intel_match snd_soc_acpi intel_pmc_bxt iTCO_vendor_support intel_rapl_msr snd_soc_core snd_compress ac97_bus dell_laptop intel_tcc_cooling x86_pkg_temp_thermal intel_powerclamp snd_pcm_dmaengine iwlmvm snd_hda_codec_hdmi coretemp
 dell_smm_hwmon kvm_intel snd_ctl_led mac80211 snd_hda_codec_realtek kvm snd_hda_codec_generic snd_hda_intel libarc4 snd_intel_dspcfg irqbypass snd_intel_sdw_acpi snd_hda_codec rapl intel_cstate snd_hda_core iwlwifi intel_uncore dell_wmi snd_hwdep ledtrig_audio btusb snd_seq btrtl btbcm btintel dell_smbios snd_seq_device uvcvideo dcdbas bluetooth snd_pcm videobuf2_vmalloc dell_wmi_descriptor pcspkr videobuf2_memops wmi_bmof snd_timer cfg80211 intel_wmi_thunderbolt videobuf2_v4l2 videobuf2_common snd videodev soundcore i2c_i801 i2c_smbus mei_me mc processor_thermal_device_pci_legacy ecdh_generic processor_thermal_device processor_thermal_rfim rfkill joydev mei processor_thermal_mbox processor_thermal_rapl idma64 intel_rapl_common intel_pch_thermal intel_xhci_usb_role_switch intel_soc_dts_iosf intel_hid sparse_keymap int3403_thermal int3400_thermal int340x_thermal_zone acpi_thermal_rel acpi_pad zram ip_tables dm_crypt trusted asn1_encoder i915 rtsx_pci_sdmmc mmc_core
 i2c_algo_bit ttm crct10dif_pclmul crc32_pclmul crc32c_intel drm_kms_helper ghash_clmulni_intel nvme cec nvme_core serio_raw drm rtsx_pci hid_multitouch i2c_hid_acpi i2c_hid wmi video pinctrl_sunrisepoint fuse
CPU: 1 PID: 209 Comm: kworker/u9:0 Tainted: G          I       5.14.9-200.fc34.x86_64 #1
Hardware name: Dell Inc. XPS 13 9350/09JHRY, BIOS 1.13.0 02/10/2020
Workqueue:  0x0 (rb_allocator)
RIP: 0010:update_blocked_averages+0x6cd/0x720
Code: e0 3b 5c b0 c6 05 ee 8c df 01 01 e8 8f 58 aa 00 0f 0b e9 2b fa ff ff 48 c7 c7 c8 3f 5c b0 c6 05 d0 8c df 01 01 e8 75 58 aa 00 <0f> 0b 41 8b 87 38 01 00 00 e9 11 fc ff ff 48 c7 c7 48 3b 5c b0 c6
RSP: 0000:ffffac46003f3d28 EFLAGS: 00010092
RAX: 0000000000000048 RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff965030c98a08 RSI: 0000000000000001 RDI: ffff965030c98a00
RBP: ffff965030cabec0 R08: 0000000000000000 R09: ffffac46003f3b60
R10: ffffac46003f3b58 R11: ffffffffb0d47428 R12: ffff965030cab880
R13: 0000000000000008 R14: ffff965030cac000 R15: ffff965030cab740
FS:  0000000000000000(0000) GS:ffff965030c80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007fbe89f90000 CR3: 0000000138f3e006 CR4: 00000000003706e0
Call Trace:
 newidle_balance+0x18f/0x3d0
 pick_next_task_fair+0x39/0x3b0
 __schedule+0x16b/0x1500
 ? iwl_pcie_rx_allocator_work+0x2bd/0x320 [iwlwifi]
 ? __cond_resched+0x16/0x40
 schedule+0x44/0xa0
 worker_thread+0xd0/0x3e0
 ? process_one_work+0x390/0x390
 kthread+0x127/0x150
 ? set_kthread_struct+0x40/0x40
 ret_from_fork+0x22/0x30