Backtrace

WARNING: CPU: 1 PID: 5186 at kernel/sched/fair.c:401 enqueue_task_fair+0x26f/0x6a0
Modules linked in: vhost_net vhost vhost_iotlb tap tun xt_set xt_multiport iptable_raw ip_set_hash_ip ip_set_hash_net ip_set ipip tunnel4 ip_tunnel bpf_preload xt_statistic ip_vs_sh ip_vs_wrr ip_vs_rr ip_vs xt_comment xt_mark nf_tables veth snd_seq_dummy snd_hrtimer xt_nat nf_conntrack_netlink nfnetlink xt_addrtype br_netfilter overlay xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_reject_ipv4 ip6table_mangle ip6table_nat ip6table_filter ip6_tables iptable_mangle iptable_nat nf_nat nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 iptable_filter bridge stp llc sunrpc vfat fat intel_rapl_msr intel_rapl_common ppdev at24 x86_pkg_temp_thermal intel_powerclamp coretemp mei_hdcp kvm_intel iTCO_wdt intel_pmc_bxt iTCO_vendor_support snd_hda_codec_hdmi snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio kvm snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi snd_hda_codec irqbypass rapl intel_cstate intel_uncore snd_hda_core snd_hwdep snd_seq snd_seq_device joydev eeepc_wmi
 snd_pcm asus_wmi sparse_keymap rfkill wmi_bmof i2c_i801 pcspkr snd_timer i2c_smbus mei_me snd mei soundcore lpc_ich parport_pc parport ip_tables amdgpu drm_ttm_helper hid_logitech_hidpp ttm iommu_v2 gpu_sched i2c_algo_bit drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel drm r8169 hid_logitech_dj wmi video fuse
CPU: 1 PID: 5186 Comm: etcd Not tainted 5.13.5-200.fc34.x86_64 #1
Hardware name: MEDION Pentino H-Series/H81M-C, BIOS 9802 07/18/2014
RIP: 0010:enqueue_task_fair+0x26f/0x6a0
Code: 60 09 00 00 0f 84 f8 fe ff ff 80 3d 25 79 df 01 00 0f 85 eb fe ff ff 48 c7 c7 00 9f 5b 8b c6 05 11 79 df 01 01 e8 fc e8 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:ffffae3482857c68 EFLAGS: 00010096
RAX: 000000000000002d RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff97b88ec98a08 RSI: 0000000000000001 RDI: ffff97b88ec98a00
RBP: ffff97b88edaad00 R08: 0000000000000000 R09: ffffae3482857aa0
R10: ffffae3482857a98 R11: ffffffff8bd468c8 R12: 0000000000000000
R13: ffff97b88edaac80 R14: 0000000000000049 R15: ffff97b88edaac80
FS:  000000c0001f2790(0000) GS:ffff97b88ec80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f11da4d9f88 CR3: 00000001a0560006 CR4: 00000000001726e0
Call Trace:
 ? psi_task_change+0x9b/0xe0
 ttwu_do_activate+0x75/0x180
 try_to_wake_up+0x19b/0x4d0
 wake_up_q+0x5b/0xa0
 futex_wake+0x12b/0x150
 do_futex+0x1b5/0xb00
 ? trigger_load_balance+0x2ab/0x2e0
 ? update_process_times+0xb0/0xc0
 ? tick_sched_handle+0x22/0x60
 ? timerqueue_add+0x97/0xb0
 ? enqueue_hrtimer+0x32/0x70
 ? pick_next_entity+0x94/0x1e0
 ? pick_next_task_fair+0x17e/0x3a0
 __x64_sys_futex+0x63/0x1a0
 ? switch_fpu_return+0x40/0xb0
 do_syscall_64+0x40/0x80
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x45e9c3
Code: 24 20 c3 cc cc cc cc 48 8b 7c 24 08 8b 74 24 10 8b 54 24 14 4c 8b 54 24 18 4c 8b 44 24 20 44 8b 4c 24 28 b8 ca 00 00 00 0f 05 <89> 44 24 30 c3 cc cc cc cc cc cc cc cc 8b 7c 24 08 48 8b 74 24 10
RSP: 002b:000000c000097ef8 EFLAGS: 00000206 ORIG_RAX: 00000000000000ca
RAX: ffffffffffffffda RBX: 000000c000097fd0 RCX: 000000000045e9c3
RDX: 0000000000000001 RSI: 0000000000000081 RDI: 0000000001ac6130
RBP: 000000c000097f48 R08: 0000000000000000 R09: 0000000000000000
R10: 0000000000000000 R11: 0000000000000206 R12: 000001eda2d50aa2
R13: 0000000000000014 R14: 000000c0011b33e0 R15: 0000000000000000