This happened on the snapshot build, on a Phicomm's KE2P. After this point, no more connecting
Here comes the crash info:
BusyBox v1.31.1 () built-in shell (ash)
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| - || _ | -__| || | | || _|| _|
|_______|| __|_____|__|__||________||__| |____|
|__| W I R E L E S S F R E E D O M
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OpenWrt SNAPSHOT, r14993-6e9b707ee2
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root@KE2P-9:~#
root@KE2P-9:~# uname -a
Linux KE2P-9 5.4.77 #0 SMP Sun Nov 22 15:20:35 2020 mips GNU/Linux
[43024.284563] ------------[ cut here ]------------
[43024.293903] WARNING: CPU: 0 PID: 1072 at backports-5.8-1/net/mac80211/util.c:462 ieee80211_stop_queue_by_reason+0x54/0x80 [mac80211]
[43024.317587] Modules linked in: mt7615e mt7615_common mt76 mac80211 cfg80211 compat 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_rtcache nf_conntrack ipt_REJECT xt_time xt_tcpudp xt_multiport xt_mark xt_mac xt_limit xt_comment xt_TCPMSS xt_LOG slhc nf_reject_ipv4 nf_log_ipv4 nf_defrag_ipv6 nf_defrag_ipv4 iptable_mangle iptable_filter ip_tables crc_ccitt ledtrig_heartbeat nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 leds_gpio gpio_button_hotplug
[43024.428317] CPU: 0 PID: 1072 Comm: hostapd Not tainted 5.4.77 #0
[43024.440251] Stack : 00000000 8007d6a0 806e0000 806d9fd4 80740000 806d9f9c 806d90f0 86e458bc
[43024.456866] 80880000 87e82b08 80724d63 8066d5ac 00000000 00000001 86e45860 eb3d64fd
[43024.473479] 00000000 00000000 808c0000 00000000 00000030 0000011c 2e352064 37372e34
[43024.490091] 00000000 0000085c 00000000 0006891d 80000000 80740000 00000000 8663edac
[43024.506703] 00000009 00000000 87138d80 87138d84 00000003 80352214 01800117 01800157
[43024.523316] ...
[43024.528169] Call Trace:
[43024.533042] [<8000b72c>] show_stack+0x30/0x100
[43024.541877] [<805ad658>] dump_stack+0xa4/0xdc
[43024.550546] [<8002c014>] __warn+0xc0/0x10c
[43024.558684] [<8002c0bc>] warn_slowpath_fmt+0x5c/0xac
[43024.568589] [<8663edac>] ieee80211_stop_queue_by_reason+0x54/0x80 [mac80211]
[43024.582643] [<86465aa8>] mt76_tx+0x190/0x244 [mt76]
[43024.592366] [<8663047c>] ieee80211_csa_set_counter+0x2ac/0xf80 [mac80211]
[43024.605903] ---[ end trace e14b35923f99f76b ]---