Backtrace

WARNING: CPU: 0 PID: 3080 at kernel/sched/fair.c:401 enqueue_task_fair+0x26e/0x6b0
Modules linked in: rfcomm vboxnetadp(OE) vboxnetflt(OE) vboxdrv(OE) nf_conntrack_netlink xt_addrtype br_netfilter 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 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 tun ip6table_filter ip6_tables overlay iptable_filter bnep sunrpc btusb intel_rapl_msr btrtl intel_rapl_common btbcm btintel snd_usb_audio bluetooth uvcvideo x86_pkg_temp_thermal videobuf2_vmalloc intel_powerclamp videobuf2_memops snd_usbmidi_lib coretemp snd_rawmidi videobuf2_v4l2 snd_ctl_led videobuf2_common snd_hda_codec_conexant snd_hda_codec_generic kvm_intel
 snd_hda_codec_hdmi videodev snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec ecdh_generic ecc iwldvm mc snd_hda_core iTCO_wdt mac80211 kvm snd_hwdep intel_pmc_bxt mei_hdcp mei_wdt iTCO_vendor_support snd_seq libarc4 irqbypass snd_seq_device iwlwifi snd_pcm thinkpad_acpi rapl i2c_i801 snd_timer intel_cstate i2c_smbus joydev ipmi_devintf platform_profile intel_uncore mei_me wmi_bmof ledtrig_audio snd cfg80211 ipmi_msghandler lpc_ich mei soundcore rfkill zram ip_tables dm_crypt trusted asn1_encoder nouveau crct10dif_pclmul crc32_pclmul crc32c_intel drm_ttm_helper ttm i2c_algo_bit mxm_wmi ghash_clmulni_intel drm_kms_helper firewire_ohci firewire_core cec sdhci_pci crc_itu_t cqhci drm serio_raw sdhci mmc_core e1000e wmi video fuse
CPU: 0 PID: 3080 Comm: Xorg Tainted: P           OE     5.13.10-100.fc33.x86_64 #1
Hardware name: LENOVO 4282AD4/4282AD4, BIOS 8BET57WW (1.37 ) 04/06/2012
RIP: 0010:enqueue_task_fair+0x26e/0x6b0
Code: 60 09 00 00 0f 84 f8 fe ff ff 80 3d 96 5f df 01 00 0f 85 eb fe ff ff 48 c7 c7 60 97 5b bd c6 05 82 5f df 01 01 e8 80 fd a8 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:ffffb18880edfad0 EFLAGS: 00010086
RAX: 000000000000002d RBX: 0000000000000000 RCX: ffff97fc6dc18a08
RDX: 00000000ffffffd8 RSI: 0000000000000027 RDI: ffff97fc6dc18a00
RBP: ffff97fc6dd6ad00 R08: 0000000000000000 R09: ffffb18880edf908
R10: ffffb18880edf900 R11: ffffffffbdd468c8 R12: 0000000000000000
R13: ffff97fc6dd6ac80 R14: 0000000000000009 R15: ffff97fc6dd6ac80
FS:  00007f8f0cf1da80(0000) GS:ffff97fc6dc00000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f8ee6cd8000 CR3: 00000002449fc001 CR4: 00000000000606f0
Call Trace:
 ? psi_task_change+0x9b/0xe0
 ttwu_do_activate+0x75/0x180
 try_to_wake_up+0x19b/0x4e0
 ? ksize+0x14/0x30
 pollwake+0x66/0x70
 ? wake_up_q+0xa0/0xa0
 __wake_up_common+0x80/0x180
 __wake_up_common_lock+0x6c/0x90
 sock_def_readable+0x37/0x70
 unix_stream_sendmsg+0x1a0/0x480
 sock_sendmsg+0x5e/0x60
 sock_write_iter+0x89/0xd0
 do_iter_readv_writev+0x139/0x180
 do_iter_write+0x7c/0x1b0
 vfs_writev+0x7a/0x110
 ? handle_mm_fault+0xd5/0x2b0
 ? auditd_test_task+0x33/0x40
 ? __audit_syscall_entry+0x100/0x130
 ? __fget_files+0x60/0x90
 do_writev+0xba/0xf0
 ? syscall_trace_enter.constprop.0+0x142/0x1c0
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f8f0d4d408d
Code: 28 89 54 24 1c 48 89 74 24 10 89 7c 24 08 e8 7a e2 f8 ff 8b 54 24 1c 48 8b 74 24 10 41 89 c0 8b 7c 24 08 b8 14 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 33 44 89 c7 48 89 44 24 08 e8 ce e2 f8 ff 48
RSP: 002b:00007ffdd9e965e0 EFLAGS: 00000293 ORIG_RAX: 0000000000000014
RAX: ffffffffffffffda RBX: 0000000000000000 RCX: 00007f8f0d4d408d
RDX: 0000000000000001 RSI: 00007ffdd9e968c0 RDI: 000000000000004a
RBP: 0000561c149ce230 R08: 0000000000000000 R09: 0000000000000001
R10: 0000000000000020 R11: 0000000000000293 R12: 0000000000000001
R13: 00007ffdd9e968c0 R14: 0000000000000000 R15: 00007f8f0cf1d708