Backtrace

WARNING: CPU: 1 PID: 6075 at kernel/sched/fair.c:401 enqueue_task_fair+0x26f/0x6a0
Modules linked in: snd_seq_dummy snd_hrtimer xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT bridge stp llc rpcrdma rdma_cm iw_cm ib_cm ib_core xt_DSCP nf_nat_tftp nft_redir nft_masq nf_conntrack_netbios_ns nf_conntrack_broadcast nft_objref nf_conntrack_tftp 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 tun ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vmnet(OE) ppdev parport_pc parport vmw_vsock_vmci_transport vsock vmw_vmci vmmon(OE) rmi_smbus rmi_core iwlmvm mac80211 intel_rapl_msr intel_rapl_common x86_pkg_temp_thermal snd_ctl_led coretemp btusb snd_hda_codec_realtek iTCO_wdt snd_hda_codec_hdmi mei_wdt snd_hda_codec_generic libarc4 kvm_intel intel_pmc_bxt
 btrtl snd_hda_intel btbcm iTCO_vendor_support mei_hdcp btintel at24 snd_intel_dspcfg snd_intel_sdw_acpi iwlwifi kvm snd_hda_codec bluetooth snd_hda_core irqbypass ecdh_generic snd_hwdep rapl snd_seq ecc thinkpad_acpi intel_cstate snd_seq_device cfg80211 intel_uncore snd_pcm platform_profile joydev snd_timer wmi_bmof ledtrig_audio i2c_i801 pcspkr snd lpc_ich mei_me rfkill i2c_smbus mei soundcore nfsd auth_rpcgss nfs_acl lockd grace binfmt_misc sunrpc zram ip_tables dm_crypt trusted asn1_encoder i915 nouveau crct10dif_pclmul crc32_pclmul crc32c_intel drm_ttm_helper ttm mxm_wmi i2c_algo_bit ghash_clmulni_intel drm_kms_helper sdhci_pci cqhci sdhci serio_raw cec drm mmc_core e1000e wmi video fuse
CPU: 1 PID: 6075 Comm: slack Tainted: G           OE     5.13.19-200.fc34.x86_64 #1
Hardware name: LENOVO 20EGS0R80J/20EGS0R80J, BIOS GNET75WW (2.23 ) 09/01/2015
RIP: 0010:enqueue_task_fair+0x26f/0x6a0
Code: 60 09 00 00 0f 84 f8 fe ff ff 80 3d c5 6b df 01 00 0f 85 eb fe ff ff 48 c7 c7 40 97 5b 88 c6 05 b1 6b df 01 01 e8 9c b8 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: 0000:ffffb51942dabd10 EFLAGS: 00010082
RAX: 000000000000002d RBX: 0000000000000001 RCX: 0000000000000027
RDX: ffff8b22de658a08 RSI: 0000000000000001 RDI: ffff8b22de658a00
RBP: ffff8b22de66ad00 R08: 0000000000000000 R09: ffffb51942dabb48
R10: ffffb51942dabb40 R11: ffffffff88d468c8 R12: 0000000000000000
R13: ffff8b22de66ac80 R14: 0000000000000009 R15: ffff8b22de66ac80
FS:  00007fc66c70cd80(0000) GS:ffff8b22de640000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000010cf00772740 CR3: 000000038a678001 CR4: 00000000001706e0
Call Trace:
 ? psi_task_change+0x9b/0xe0
 ttwu_do_activate+0x75/0x180
 try_to_wake_up+0x19b/0x4d0
 __queue_work+0x1d1/0x3e0
 rcu_work_rcufn+0x1e/0x30
 rcu_do_batch+0x17e/0x500
 rcu_core+0x183/0x2e0
 ? sched_clock_cpu+0xc/0xa0
 __do_softirq+0xd0/0x28f
 __irq_exit_rcu+0xcc/0x100
 sysvec_apic_timer_interrupt+0x3c/0x90
 ? asm_sysvec_apic_timer_interrupt+0xa/0x20
 asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0033:0x10cf00040965
Code: 19 00 00 00 55 48 89 e5 6a 24 33 c0 49 8b 9d c8 28 00 00 e8 2d 19 07 00 cc 48 8b e5 5d 8b 4f 17 49 03 cd f7 41 1b 00 00 00 20 <0f> 85 09 00 00 00 48 83 c1 3f e9 0b 00 00 00 8b 49 1f 49 8b 8c cd
RSP: 002b:00007ffcea602bc8 EFLAGS: 00000246
RAX: 0000000000000001 RBX: 0000000000000000 RCX: 000010cf0061ea01
RDX: 000010cf080423b5 RSI: 000010cf08dee409 RDI: 000010cf1056bcb9
RBP: 00007ffcea602c08 R08: 000010cf0b913c0d R09: 000010cf080c80c5
R10: 000007cc80a83509 R11: 000010cf15f571e1 R12: 00000000082bc9f9
R13: 000010cf00000000 R14: 000010cf0be05c85 R15: 000010cf0c4a1f19