Backtrace

NETDEV WATCHDOG: enp6s0f0 (igb): transmit queue 5 timed out
WARNING: CPU: 16 PID: 0 at net/sched/sch_generic.c:442 dev_watchdog+0x24f/0x260
Modules linked in: xt_CHECKSUM xt_MASQUERADE tun rpcsec_gss_krb5 nfsv4 dns_resolver nfs nfs_ssc fscache ip6t_rpfilter ip6t_REJECT nf_reject_ipv6 ipt_REJECT nf_reject_ipv4 xt_conntrack ebtable_nat ebtable_broute ip6table_nat ip6table_mangle ip6table_security ip6table_raw iptable_nat nf_nat iptable_mangle iptable_security iptable_raw nf_conntrack nf_defrag_ipv6 nf_defrag_ipv4 ip_set nfnetlink ebtable_filter ebtables rfkill ip6table_filter ip6_tables iptable_filter snd_hda_codec_realtek snd_hda_codec_generic ledtrig_audio snd_hda_codec_hdmi snd_hda_intel sb_edac snd_intel_dspcfg x86_pkg_temp_thermal intel_powerclamp snd_hda_codec iTCO_wdt iTCO_vendor_support coretemp snd_hda_core kvm_intel snd_hwdep snd_seq kvm irqbypass crct10dif_pclmul crc32_pclmul ghash_clmulni_intel i2c_i801 snd_seq_device lpc_ich aesni_intel mfd_core crypto_simd cryptd snd_pcm snd_timer snd rapl intel_cstate soundcore ioatdma pcspkr joydev input_leds mei_me sg i2c_smbus mei tcp_bbr sch_fq nfsd auth_rpcgss
nfs_acl lockd grace sunrpc binfmt_misc ip_tables xfs libcrc32c raid1 sr_mod cdrom sd_mod t10_pi crc32c_intel nouveau drm_ttm_helper ttm mxm_wmi video isci ahci firewire_ohci drm_kms_helper igb libsas syscopyarea libahci sysfillrect firewire_core scsi_transport_sas ptp sysimgblt crc_itu_t pps_core fb_sys_fops dca i2c_algo_bit libata drm wmi dm_mirror dm_region_hash dm_log dm_mod fuse
CPU: 16 PID: 0 Comm: swapper/16 Not tainted 5.12.4-1.el7.elrepo.x86_64 #1
Hardware name: Supermicro X9DAi/X9DAi, BIOS 3.0a 04/29/2014
RIP: 0010:dev_watchdog+0x24f/0x260
Code: 37 b4 fd ff eb ab 4c 89 ff c6 05 8c 9b 17 01 01 e8 a6 74 fa ff 44 89 e9 4c 89 fe 48 c7 c7 08 7d 3c a4 48 89 c2 e8 5e 0b 17 00 <0f> 0b eb 8c 66 66 2e 0f 1f 84 00 00 00 00 00 66 90 0f 1f 44 00 00
RSP: 0018:ffffa43186728e70 EFLAGS: 00010282
RAX: 0000000000000000 RBX: ffff92a9c78d78c0 RCX: 000000000000083f
RDX: 0000000000000000 RSI: 00000000000000f6 RDI: 000000000000083f
RBP: ffffa43186728ea0 R08: ffff92a99fc98680 R09: ffffa43186728c30
R10: 0000000000000001 R11: 0000000000000001 R12: 0000000000000008
R13: 0000000000000005 R14: ffff92a249e48480 R15: ffff92a249e48000
FS:  0000000000000000(0000) GS:ffff92a99fc80000(0000) knlGS:0000000000000000
CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
CR2: 000000000a1f996c CR3: 00000007f760a003 CR4: 00000000001706e0
Call Trace:
<IRQ>
? pfifo_fast_enqueue+0x150/0x150
call_timer_fn+0x2e/0x100
__run_timers.part.0+0x1e0/0x250
? tick_sched_timer+0x6d/0x80
? recalibrate_cpu_khz+0x10/0x10
? ktime_get+0x3e/0xa0
? lapic_next_deadline+0x2c/0x40
? clockevents_program_event+0x8f/0xe0
run_timer_softirq+0x2a/0x50
__do_softirq+0xe0/0x29b
irq_exit_rcu+0xd2/0xe0
sysvec_apic_timer_interrupt+0x7c/0x90
</IRQ>
asm_sysvec_apic_timer_interrupt+0x12/0x20
RIP: 0010:cpuidle_enter_state+0xdf/0x350
Code: ff e8 55 7e 94 ff 80 7d d7 00 74 17 9c 58 0f 1f 44 00 00 f6 c4 02 0f 85 52 02 00 00 31 ff e8 18 09 9b ff fb 66 0f 1f 44 00 00 <45> 85 ff 0f 88 e5 00 00 00 49 63 c7 4c 2b 75 c8 48 8d 14 40 48 8d
RSP: 0018:ffffa43186423e48 EFLAGS: 00000246
RAX: ffff92a99fcabf00 RBX: 0000000000000004 RCX: 000000000000001f
RDX: 0000000000000000 RSI: 000000003cf3d124 RDI: 0000000000000000
RBP: ffffa43186423e80 R08: 00031c649098c83f R09: 000000000002c6f8
R10: ffff92a99fcaae44 R11: ffff92a99fcaae24 R12: ffffc4297fc80128
R13: ffffffffa490af40 R14: 00031c649098c83f R15: 0000000000000004
? cpuidle_enter_state+0xbb/0x350
cpuidle_enter+0x2e/0x40
call_cpuidle+0x23/0x40
do_idle+0x1d5/0x240
cpu_startup_entry+0x20/0x30
start_secondary+0x11f/0x160
secondary_startup_64_no_verify+0xb0/0xbb