WARNING: CPU: 0 PID: 0 at net/sched/sch_hfsc.c:1385 hfsc_dequeue+0x305/0x320 [sch_hfsc]
Modules linked in: joydev sch_fq_codel cls_u32 sch_ingress sch_hfsc nf_conntrack_netlink ext4 mbcache jbd2 rpcsec_gss_krb5 auth_rpcgss nfsv4 dns_resolver nfs lockd grace fscache vhost_net vhost macvtap macvlan ebt_arp tun dm_thin_pool dm_persistent_data dm_bio_prison dm_bufio binfmt_misc fuse devlink mpt3sas mpt2sas raid_class scsi_transport_sas mptctl mptbase dell_rbu bnx2fc cnic uio iscsi_tcp libiscsi_tcp fcoe libfcoe libfc scsi_transport_fc nf_conntrack_netbios_ns nf_conntrack_broadcast ip6t_rpfilter ipt_REJECT nf_reject_ipv4 ip6t_REJECT nf_reject_ipv6 xt_conntrack geneve ip6_udp_tunnel udp_tunnel openvswitch ip_set nfnetlink ebtable_nat ebtable_broute ip6table_nat nf_conntrack_ipv6 nf_defrag_ipv6 nf_nat_ipv6 ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_conntrack_ipv4
nf_defrag_ipv4 nf_nat_ipv4 nf_nat nf_conntrack iptable_mangle iptable_security iptable_raw ebtable_filter ebtables ip6table_filter ip6_tables iptable_filter vfat fat ib_isert iscsi_target_mod ib_srpt target_core_mod ib_srp scsi_transport_srp scsi_tgt ib_ipoib ib_ucm ib_umad rpcrdma sunrpc rdma_ucm ib_uverbs ib_iser rdma_cm iw_cm ib_cm libiscsi scsi_transport_iscsi qedr ib_core iTCO_wdt iTCO_vendor_support dcdbas skx_edac intel_powerclamp coretemp intel_rapl iosf_mbi kvm_intel kvm dm_service_time irqbypass crc32_pclmul ghash_clmulni_intel aesni_intel lrw gf128mul glue_helper ablk_helper cryptd pcspkr mei_me sg mei lpc_ich i2c_i801 ipmi_si ipmi_devintf ipmi_msghandler acpi_power_meter acpi_pad dm_multipath ip_tables xfs libcrc32c sd_mod crc_t10dif crct10dif_generic mgag200 i2c_algo_bit
drm_kms_helper crct10dif_pclmul crct10dif_common crc32c_intel syscopyarea qede sysfillrect sysimgblt fb_sys_fops ttm ptp pps_core ahci qed drm libahci libata megaraid_sas crc8 drm_panel_orientation_quirks nfit libnvdimm dm_mirror dm_region_hash dm_log dm_mod 8021q garp mrp bridge stp llc bonding
CPU: 0 PID: 0 Comm: swapper/0 Kdump: loaded Tainted: G        W      ------------   3.10.0-957.27.2.el7.x86_64 #1
Hardware name: Dell Inc. PowerEdge R640/0W23H8, BIOS 1.5.4 07/30/2018
Call Trace:
<IRQ>  [<ffffffffb5564147>] dump_stack+0x19/0x1b
[<ffffffffb4e98848>] __warn+0xd8/0x100
[<ffffffffb4e9898d>] warn_slowpath_null+0x1d/0x20
[<ffffffffc0cf7535>] hfsc_dequeue+0x305/0x320 [sch_hfsc]
[<ffffffffb5467fdf>] __qdisc_run+0x13f/0x360
[<ffffffffb5439406>] net_tx_action+0x1d6/0x240
[<ffffffffb4ea2155>] __do_softirq+0xf5/0x280
[<ffffffffb557a32c>] call_softirq+0x1c/0x30
[<ffffffffb4e2e675>] do_softirq+0x65/0xa0
[<ffffffffb4ea24d5>] irq_exit+0x105/0x110
[<ffffffffb557b6e8>] smp_apic_timer_interrupt+0x48/0x60
[<ffffffffb5577df2>] apic_timer_interrupt+0x162/0x170
<EOI>  [<ffffffffb4ec6efd>] ? hrtimer_start_range_ns+0x1ed/0x3c0
[<ffffffffb53b06c7>] ? cpuidle_enter_state+0x57/0xd0
[<ffffffffb53b06bd>] ? cpuidle_enter_state+0x4d/0xd0
[<ffffffffb53b081e>] cpuidle_idle_call+0xde/0x230
[<ffffffffb4e366de>] arch_cpu_idle+0xe/0xc0
[<ffffffffb4efd7ba>] cpu_startup_entry+0x14a/0x1e0
[<ffffffffb5552217>] rest_init+0x77/0x80
[<ffffffffb5b861c6>] start_kernel+0x44b/0x46c
[<ffffffffb5b85b7b>] ? repair_env_string+0x5c/0x5c
[<ffffffffb5b85120>] ? early_idt_handler_array+0x120/0x120
[<ffffffffb5b8572f>] x86_64_start_reservations+0x24/0x26
[<ffffffffb5b85885>] x86_64_start_kernel+0x154/0x177
[<ffffffffb4e000d5>] start_cpu+0x5/0x14