Backtrace

WARNING: CPU: 1 PID: 2896 at kernel/sched/fair.c:401 enqueue_task_fair+0x26e/0x6b0
Modules linked in: snd_seq_dummy snd_hrtimer rfcomm xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nft_redir nft_objref nf_conntrack_tftp bridge stp llc xt_DSCP 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 tun nfnetlink ip6table_filter ip6_tables iptable_filter bnep ppdev parport_pc parport vmw_vsock_vmci_transport vsock vmw_vmci rmi_smbus rmi_core sunrpc intel_rapl_msr nvidia_drm(POE) nvidia_modeset(POE) mei_hdcp mei_wdt ee1004 iTCO_wdt intel_pmc_bxt intel_rapl_common iTCO_vendor_support intel_tcc_cooling iwlmvm x86_pkg_temp_thermal intel_powerclamp coretemp kvm_intel snd_ctl_led mac80211 uvcvideo snd_hda_codec_realtek videobuf2_vmalloc snd_hda_codec_generic snd_hda_codec_hdmi kvm videobuf2_memops
 videobuf2_v4l2 snd_hda_intel snd_intel_dspcfg libarc4 vfat fat snd_intel_sdw_acpi videobuf2_common iwlwifi irqbypass btusb snd_hda_codec btrtl btbcm btintel nvidia(POE) rapl snd_hda_core bluetooth intel_cstate snd_hwdep snd_seq videodev snd_seq_device intel_uncore snd_pcm mc thinkpad_acpi drm_kms_helper ecdh_generic mei_me platform_profile joydev pcspkr wmi_bmof intel_wmi_thunderbolt i2c_i801 ledtrig_audio snd_timer ecc cfg80211 snd i2c_smbus mei cec soundcore intel_pch_thermal rfkill drm zram ip_tables dm_crypt trusted asn1_encoder hid_lg_g15 rtsx_pci_sdmmc mmc_core crct10dif_pclmul crc32_pclmul crc32c_intel ghash_clmulni_intel e1000e serio_raw rtsx_pci wmi video hid_plantronics fuse
CPU: 1 PID: 2896 Comm: ksystemstats Tainted: P           OE     5.13.19-100.fc33.x86_64 #1
Hardware name: LENOVO 20EQS3B400/20EQS3B400, BIOS N1EET64W (1.37 ) 12/08/2016
RIP: 0010:enqueue_task_fair+0x26e/0x6b0
Code: 60 09 00 00 0f 84 f8 fe ff ff 80 3d e6 60 df 01 00 0f 85 eb fe ff ff 48 c7 c7 20 99 5b b5 c6 05 d2 60 df 01 01 e8 10 0d a9 00 <0f> 0b e9 d1 fe ff ff 44 8b 85 80 01 00 00 45 85 c0 0f 85 e7 fe ff
RSP: 0018:ffffa33943f9bc10 EFLAGS: 00010082
RAX: 000000000000002d RBX: 0000000000000000 RCX: ffff8ad603c58a08
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff8ad603c58a00
RBP: ffff8ad603c2ad00 R08: 0000000000000000 R09: ffffa33943f9ba48
R10: ffffa33943f9ba40 R11: ffffffffb5d468c8 R12: 0000000000000000
R13: ffff8ad603c2ac80 R14: 0000000000000009 R15: ffff8ad603c2ac80
FS:  00007fa3275f5c40(0000) GS:ffff8ad603c40000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 0000259a03829000 CR3: 000000026dba2002 CR4: 00000000003706e0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 ? psi_task_change+0x9b/0xe0
 ttwu_do_activate+0x75/0x180
 try_to_wake_up+0x19b/0x4e0
 pollwake+0x66/0x70
 ? wake_up_q+0xa0/0xa0
 __wake_up_common+0x80/0x180
 __wake_up_common_lock+0x6c/0x90
 pipe_write+0x89/0x610
 ? wake_up_q+0xa0/0xa0
 new_sync_write+0x175/0x180
 vfs_write+0x1c2/0x260
 ksys_write+0x87/0xc0
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7fa329e7debf
Code: 89 54 24 18 48 89 74 24 10 89 7c 24 08 e8 49 44 f9 ff 48 8b 54 24 18 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 31 44 89 c7 48 89 44 24 08 e8 9c 44 f9 ff 48
RSP: 002b:00007ffde2b143c0 EFLAGS: 00000293 ORIG_RAX: 0000000000000001
RAX: ffffffffffffffda RBX: 0000562fe90f50c8 RCX: 00007fa329e7debf
RDX: 00000000000000db RSI: 0000562fe90f50c8 RDI: 0000000000000008
RBP: 0000562fe90c04a0 R08: 0000000000000000 R09: 00007fa32a686420
R10: 00007ffde2b7f080 R11: 0000000000000293 R12: 00000000000000db
R13: 0000000000000008 R14: 0000562fe90c04a0 R15: 0000000000000003