[FS#4053] ath10k kernel error out of the blue on WiFi dump AP running with 802.11s mesh backhaul

[OpenWrt Bugs]

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FS#4053 - ath10k kernel error out of the blue on WiFi dump AP running with 802.11s mesh backhaul
User who did this - marco (marcux)

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Can confirm this issue.

TP-Link Archer C7 v2
OpenWrt 21.02.0 r16279-5cc0535800 (first release)

Never saw this issue in older versions.

[1556558.496035] WARNING: CPU: 0 PID: 0 at backports-5.10.42-1/net/mac80211/rate.c:688 0x8771e77c [mac80211 at 785a9002+0x7d0f0]
[1556558.507263] Modules linked in: ath9k ath9k_common pppoe ppp_async iptable_nat ath9k_hw ath10k_pci ath10k_core ath xt_state xt_nat xt_conntrack xt_REDIRECT xt_MASQUERADE xt_FLOWOFFLOAD xt_CT wireguard pppox ppp_generic nf_nat nf_flow_table_hw nf_flow_table nf_conntrack mac80211 libchacha20poly1305 libblake2s ipt_REJECT cfg80211 xt_time xt_tcpudp xt_multiport xt_mark xt_mac xt_limit xt_comment xt_TCPMSS xt_LOG slhc poly1305_mips nf_reject_ipv4 nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 libcurve25519_generic libblake2s_generic iptable_mangle iptable_filter ip_tables hwmon crc_ccitt compat chacha_mips ledtrig_usbport nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 ip6_udp_tunnel udp_tunnel ip6_tunnel tunnel6 kpp crypto_hash fsl_mph_dr_of ehci_platform ehci_fsl ehci_hcd gpio_button_hotplug usbcore nls_base usb_common
[1556558.585407] CPU: 0 PID: 0 Comm: swapper Not tainted 5.4.143 #0
[1556558.591503] Stack : 87780000 800b95d8 80660000 805fa440 00000000 00000000 00000000 00000000
[1556558.600162]         00000000 00000000 00000000 00000000 00000000 00000001 87c0bc30 7f393931
[1556558.608820]         87c0bcc8 00000000 00000000 0000017e 00000038 8057a304 204e6f74 20746169
[1556558.617480]         0000017e 124f2c74 00000000 0008eebf 00000000 87c0bc10 00000000 8771e77c
[1556558.626139]         00000009 87776a10 872581a0 80630000 00000003 8031fd68 00000000 80790000
[1556558.634797]         ...
[1556558.637455] Call Trace:
[1556558.637469] [] 0x87780000 [ath10k_core at e351af48+0x6bb00]
[1556558.646574] [] 0x800b95d8
[1556558.650290] [] 0x80660000
[1556558.654015] [] 0x8057a304
[1556558.657743] [] 0x8771e77c [mac80211 at 785a9002+0x7d0f0]
[1556558.663950] [] 0x8031fd68
[1556558.667670] [] 0x87780000 [ath10k_core at e351af48+0x6bb00]
[1556558.674123] [] 0x80069364
[1556558.677843] [] 0x8006936c
[1556558.681565] [] 0x800821b4
[1556558.685294] [] 0x8771e77c [mac80211 at 785a9002+0x7d0f0]
[1556558.691475] [] 0x8008225c
[1556558.695197] [] 0x8044f8a8
[1556558.698924] [] 0x8771e77c [mac80211 at 785a9002+0x7d0f0]
[1556558.705118] [] 0x8772e650 [mac80211 at 785a9002+0x7d0f0]
[1556558.711307] [] 0x800c3bfc
[1556558.715027] [] 0x872a95cc [ath9k at 152ecce7+0x19110]
[1556558.720960] [] 0x872ac928 [ath9k at 152ecce7+0x19110]
[1556558.726882] [] 0x8017c748
[1556558.730600] [] 0x800a4254
[1556558.734337] [] 0x872a4400 [ath9k at 152ecce7+0x19110]
[1556558.740277] [] 0x87730ccc [mac80211 at 785a9002+0x7d0f0]
[1556558.746485] [] 0x87730e20 [mac80211 at 785a9002+0x7d0f0]
[1556558.752686] [] 0x87738b50 [mac80211 at 785a9002+0x7d0f0]
[1556558.758893] [] 0x8773a774 [mac80211 at 785a9002+0x7d0f0]
[1556558.765095] [] 0x872a4c28 [ath9k at 152ecce7+0x19110]
[1556558.771019] [] 0x80660000
[1556558.774739] [] 0x80660000
[1556558.778462] [] 0x80085040
[1556558.782185] [] 0x800ba4d0
[1556558.785907] [] 0x8057f8b8
[1556558.789628] [] 0x800bf060
[1556558.793354] [] 0x802bf580
[1556558.797075] [] 0x80064f78
[1556558.800793] 
[1556558.802476] ---[ end trace b018613443f6982b ]---
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More information can be found at the following URL:
https://bugs.openwrt.org/index.php?do=details&task_id=4053#comment10165

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