Backtrace

WARNING: CPU: 7 PID: 4651 at kernel/sched/fair.c:3307 update_blocked_averages+0x6cd/0x720
Modules linked in: xt_CHECKSUM xt_MASQUERADE xt_conntrack ipt_REJECT nf_nat_tftp nf_conntrack_tftp bridge stp llc rpcrdma rdma_cm iw_cm ib_cm ib_core 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 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 rfkill ip_set nf_tables nfnetlink ip6table_filter ip6_tables iptable_filter qrtr ns squashfs loop intel_rapl_msr snd_hda_codec_generic intel_rapl_common ledtrig_audio snd_hda_intel snd_intel_dspcfg snd_intel_sdw_acpi kvm_intel snd_hda_codec snd_hda_core snd_hwdep kvm snd_seq snd_seq_device irqbypass rapl snd_pcm iTCO_wdt snd_timer intel_pmc_bxt iTCO_vendor_support snd joydev i2c_i801 soundcore pcspkr virtio_balloon lpc_ich i2c_smbus nfsd auth_rpcgss nfs_acl lockd grace sunrpc zram
 ip_tables dm_crypt trusted asn1_encoder qxl drm_ttm_helper ttm drm_kms_helper crct10dif_pclmul crc32_pclmul crc32c_intel cec ghash_clmulni_intel drm serio_raw virtio_net virtio_console virtio_blk net_failover failover qemu_fw_cfg ipmi_devintf ipmi_msghandler fuse
CPU: 7 PID: 4651 Comm: Chrome_ChildIOT Not tainted 5.14.14-300.fc35.x86_64 #1
Hardware name: Red Hat KVM/RHEL-AV, BIOS 1.13.0-2.module+el8.3.0+7353+9de0a3cc 04/01/2014
RIP: 0010:update_blocked_averages+0x6cd/0x720
Code: c0 40 5c 90 c6 05 ae 8b ff 01 01 e8 19 67 aa 00 0f 0b e9 2b fa ff ff 48 c7 c7 a8 44 5c 90 c6 05 90 8b ff 01 01 e8 ff 66 aa 00 <0f> 0b 41 8b 87 38 01 00 00 e9 11 fc ff ff 48 c7 c7 28 40 5c 90 c6
RSP: 0018:ffffa4f48f0e7c10 EFLAGS: 00010082
RAX: 0000000000000048 RBX: 0000000000000000 RCX: 0000000000000027
RDX: ffff8f13b7bd8a08 RSI: 0000000000000001 RDI: ffff8f13b7bd8a00
RBP: ffff8f127666a000 R08: 0000000000000000 R09: ffffa4f48f0e7a48
R10: ffffa4f48f0e7a40 R11: ffffffff90f47468 R12: ffff8f1272cc4740
R13: 0000000000000038 R14: ffff8f13b7bec000 R15: ffff8f1272cc4600
FS:  00007f619ef2b640(0000) GS:ffff8f13b7bc0000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 00007f7b922024e0 CR3: 00000000554a6001 CR4: 0000000000370ee0
DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
Call Trace:
 newidle_balance+0x18f/0x3d0
 pick_next_task_fair+0x39/0x3b0
 __schedule+0x16b/0x1500
 ? __check_object_size+0x46/0x150
 ? _copy_from_user+0x28/0x60
 ? timerqueue_add+0x66/0xb0
 ? enqueue_hrtimer+0x2f/0x70
 ? hrtimer_start_range_ns+0x24b/0x340
 schedule+0x44/0xa0
 schedule_hrtimeout_range_clock+0x85/0x100
 ? __hrtimer_init+0xc0/0xc0
 do_epoll_wait+0x55d/0x730
 ? finish_wait+0x80/0x80
 __x64_sys_epoll_wait+0x50/0xd0
 do_syscall_64+0x3b/0x90
 entry_SYSCALL_64_after_hwframe+0x44/0xae
RIP: 0033:0x7f61afd91c7e
Code: 10 89 7c 24 0c 89 4c 24 1c e8 9e 84 f7 ff 44 8b 54 24 1c 8b 54 24 18 41 89 c0 48 8b 74 24 10 8b 7c 24 0c b8 e8 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 32 44 89 c7 89 44 24 0c e8 de 84 f7 ff 8b 44
RSP: 002b:00007f619ef2a460 EFLAGS: 00000293 ORIG_RAX: 00000000000000e8
RAX: ffffffffffffffda RBX: 00007f619ef2a500 RCX: 00007f61afd91c7e
RDX: 0000000000000020 RSI: 00003ed4000e1200 RDI: 000000000000000c
RBP: 00007f619ef2a4c0 R08: 0000000000000000 R09: aaaaaaaaaaaaaaaa
R10: 00000000000000e3 R11: 0000000000000293 R12: 00003ed400108e00
R13: 00003ed40003bc00 R14: 00003ed4000e1200 R15: 00003ed40017e780