System Log:
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.055193] ------------[ cut here ]------------
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.064903] WARNING: CPU: 0 PID: 881 at backports-5.10.42-1/net/mac80211/airtime.c:457 0x86e57080 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.087966] Modules linked in: pppoe ppp_async iptable_nat xt_state xt_nat xt_conntrack xt_REDIRECT xt_MASQUERADE xt_FLOWOFFLOAD xt_CT pppox ppp_generic nf_nat nf_flow_table_hw nf_flow_table nf_conntrack_netlink nf_conntrack mt76x2e mt76x2_common mt76x02_lib mt7603e mt76 mac80211 ipt_REJECT cfg80211 xt_time xt_tcpudp xt_multiport xt_mark xt_mac xt_limit xt_comment xt_TCPMSS xt_LOG slhc nfnetlink nf_reject_ipv4 nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables crc_ccitt compat ledtrig_usbport nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 leds_gpio xhci_plat_hcd xhci_pci xhci_mtk xhci_hcd gpio_button_hotplug usbcore nls_base usb_common
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.216824] CPU: 0 PID: 881 Comm: mt76-tx phy1 Tainted: G W 5.4.143 #0
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.232756] Stack : 00000000 80850000 00000000 8007dec4 00000000 00000000 00000000 00000000
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.249727] 00000000 00000000 00000000 00000000 00000000 00000001 86f8dc30 f967e7f3
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.266696] 86f8dcc8 00000000 00000000 00000000 00000038 805eb4e4 20202020 2e342e35
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.283668] 00000000 0000d5d6 00000000 00034ef8 00000000 86f8dc10 00000000 86e57080
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.300632] 00000009 00000014 00000004 00000002 00000002 8035c59c 00000000 80820000
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.317594] ...
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.322796] Call Trace:
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.322812] [<8007dec4>] 0x8007dec4
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.335321] [<805eb4e4>] 0x805eb4e4
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.342609] [<86e57080>] 0x86e57080 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.354721] [<8035c59c>] 0x8035c59c
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.362005] [<8000b05c>] 0x8000b05c
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.369283] [<8000b064>] 0x8000b064
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.376555] [<805d0e1c>] 0x805d0e1c
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.383824] [<8007a96c>] 0x8007a96c
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.391095] [<8002c140>] 0x8002c140
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.398384] [<86e57080>] 0x86e57080 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.410505] [<8002c1e8>] 0x8002c1e8
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.417803] [<86e57080>] 0x86e57080 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.429919] [<86e036f0>] 0x86e036f0 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.442033] [<86e57268>] 0x86e57268 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.454170] [<86e57348>] 0x86e57348 [mac80211@391f6ee3+0x7d9d0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.466296] [<8041e234>] 0x8041e234
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.473594] [<86ec2a24>] 0x86ec2a24 [mt76x02_lib@07f2ed72+0x9de0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.486057] [<86d20530>] 0x86d20530 [mt76@6284f184+0x96c0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.497327] [<86d20530>] 0x86d20530 [mt76@6284f184+0x96c0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.508581] [<86ec5004>] 0x86ec5004 [mt76x02_lib@07f2ed72+0x9de0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.521052] [<86d20530>] 0x86d20530 [mt76@6284f184+0x96c0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.532312] [<86d205d4>] 0x86d205d4 [mt76@6284f184+0x96c0]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.543559] [<8004b484>] 0x8004b484
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.550831] [<805ece7c>] 0x805ece7c
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.558133] [<8004b994>] 0x8004b994
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.565418] [<8004b854>] 0x8004b854
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.572705] [<8004b854>] 0x8004b854
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.579980] [<8004b854>] 0x8004b854
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.587258] [<80006718>] 0x80006718
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.594536]
Sun Sep 26 10:20:11 2021 kern.warn kernel: [1100259.598616] ---[ end trace 66d253ddadc4560d ]---
Should I be worried about this? The router operates normal.