Linksys EA4500 suffers endless reboots: Radio1 (5GHz) crashes in mac80211
Username: builker
Origin: https://bugs.openwrt.org/index.php?do=details&task_id=2218
One of 5 EA3500’s, each at a different site, keeps crashing and restarting. Both 18.06.2 and Snapshot r9614-b6149540 are suffering it at this particular site. I could finally keep it booting up after disabling radio1 (5
GHz
). Other 4 sites have no trouble with the same system and wireless configuration.
I can pretty much rule out hardware problems. Just boot up Snapshot r9614-b6149540 on an EA4500, whose radio1 (5G) worked on another site. It suffers the same infinite crash/restart sequence. At least 3 different devices worked at different locations, but crash only at this one.
From the serial console: A crash at backports-4.19.23-1/net/mac80211/rx.c:4516 ieee80211_rx_napi+0x1fc/0xa54 [mac80211]
[ 22.960919] IPv6: ADDRCONF(NETDEV_UP): eth0: link is not ready [ 23.010664] br-lan: port 1(eth0.1) entered blocking state [ 23.016172] br-lan: port 1(eth0.1) entered disabled state [ 23.021848] device eth0.1 entered promiscuous mode [ 23.026687] device eth0 entered promiscuous mode [ 23.110502] br-lan: port 1(eth0.1) entered blocking state [ 23.115976] br-lan: port 1(eth0.1) entered forwarding state [ 23.121730] IPv6: ADDRCONF(NETDEV_UP): br-lan: link is not ready [ 23.191580] mv643xx_eth_port mv643xx_eth_port.1 eth1: link up, 1000 Mb/s, full duplex, flow control disabled [ 23.202650] IPv6: ADDRCONF(NETDEV_UP): eth1: link is not ready [ 24.009012] IPv6: ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready [ 24.015903] IPv6: ADDRCONF(NETDEV_CHANGE): br-lan: link becomes ready [ 24.022546] IPv6: ADDRCONF(NETDEV_CHANGE): eth1: link becomes ready [ 25.052979] 0000:01:00.0: unable to load firmware helper image [ 25.058872] ieee80211 phy0: Cannot start firmware [ 25.063675] ieee80211 phy0: Trying to reload the firmware again [ 25.987785] ieee80211 phy0: 88w8366 v7, 20aa4b891bf2, AP firmware 5.2.8.17 [ 26.047574] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready [ 26.113947] 0000:02:00.0: unable to load firmware helper image [ 26.119821] ieee80211 phy1: Cannot start firmware [ 26.124636] ieee80211 phy1: Trying to reload the firmware again [ 26.511780] ieee80211 phy1: 88w8366 v7, 20aa4b891bf4, AP firmware 5.2.8.17 [ 26.565994] IPv6: ADDRCONF(NETDEV_UP): wlan1: link is not ready [ 26.577344] br-lan: port 2(wlan0) entered blocking state [ 26.582745] br-lan: port 2(wlan0) entered disabled state [ 26.588309] device wlan0 entered promiscuous mode [ 26.614795] br-lan: port 3(wlan1) entered blocking state [ 26.620186] br-lan: port 3(wlan1) entered disabled state [ 26.625800] device wlan1 entered promiscuous mode [ 27.137261] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready [ 27.143826] br-lan: port 2(wlan0) entered blocking state [ 27.149170] br-lan: port 2(wlan0) entered forwarding state [ 27.179154] ------------[ cut here ]------------ [ 27.183961] WARNING: CPU: 0 PID: 0 at backports-4.19.23-1/net/mac80211/rx.c:4516 ieee80211_rx_napi+0x1fc/0xa54 [mac80211] [ 27.194991] Modules linked in: pppoe ppp_async pppox ppp_generic nf_conntrack_ipv6 mwl8k mac80211 iptable_nat ipt_REJECT ipt_MASQUERADE cfg80211 xt_time xt_tcpudp xt_state xt_nat xt_multiport xt_mark xt_mac xt_limit xt_conntrack xt_comment xt_TCPMSS xt_REDIRECT xt_LOG xt_FLOWOFFLOAD xt_CT slhc nf_reject_ipv4 nf_nat_redirect nf_nat_masquerade_ipv4 nf_conntrack_ipv4 nf_nat_ipv4 nf_nat nf_log_ipv4 nf_flow_table_hw nf_flow_table nf_defrag_ipv6 nf_defrag_ipv4 nf_conntrack_rtcache nf_conntrack iptable_mangle iptable_filter ip_tables crc_ccitt compat nf_log_ipv6 nf_log_common ip6table_mangle ip6table_filter ip6_tables ip6t_REJECT x_tables nf_reject_ipv6 tun gpio_button_hotplug [ 27.254721] CPU: 0 PID: 0 Comm: swapper Not tainted 4.14.105 #0 [ 27.260669] Hardware name: Marvell Kirkwood (Flattened Device Tree) [ 27.266969] Backtrace: [ 27.269438] [] (dump_backtrace) from [] (show_stack+0x18/0x1c) [ 27.277057] r7:bf1f012c r6:00000000 r5:bf227600 r4:00000000 [ 27.282772] [] (show_stack) from [] (dump_stack+0x20/0x28) [ 27.290036] [] (dump_stack) from [] (__warn+0xdc/0x108) [ 27.297048] [] (__warn) from [] (warn_slowpath_null+0x28/0x30) [ 27.304665] r9:c7104ff0 r8:bf226390 r7:bf226318 r6:c71058a0 r5:c7104bc0 r4:c72be9c0 [ 27.312535] [] (warn_slowpath_null) from [] (ieee80211_rx_napi+0x1fc/0xa54 [mac80211]) [ 27.322376] [] (ieee80211_rx_napi [mac80211]) from [] (ieee80211_tasklet_handler+0x64/0xc0 [mac80211]) [ 27.333486] r10:00000000 r9:c7104ff0 r8:bf226390 r7:bf226318 r6:c7104bc0 r5:c7104fe4 [ 27.341359] r4:c72be9c0 [ 27.343976] [] (ieee80211_tasklet_handler [mac80211]) from [] (tasklet_action+0x88/0xd8) [ 27.353865] r9:00000100 r8:ffffe000 r7:00000000 r6:c082a000 r5:c08085fc r4:00000000 [ 27.361664] [] (tasklet_action) from [] (__do_softirq+0xac/0x25c) [ 27.369534] r7:c082a020 r6:40000006 r5:c082a038 r4:00000006 [ 27.375236] [] (__do_softirq) from [] (irq_exit+0xc8/0x110) [ 27.382594] r10:00000000 r9:c0801f00 r8:c7805200 r7:00000001 r6:00000000 r5:c0829178 [ 27.390458] r4:00000000 [ 27.393022] [] (irq_exit) from [] (__handle_domain_irq+0x8c/0xa8) [ 27.400893] [] (__handle_domain_irq) from [] (orion_handle_irq+0x74/0xa0) [ 27.409469] r9:c0801f00 r8:00000001 r7:c085564c r6:c780801c r5:00000400 r4:0000000a [ 27.417263] [] (orion_handle_irq) from [] (__irq_svc+0x68/0x84) [ 27.424968] Exception stack(0xc0801f00 to 0xc0801f48) [ 27.430044] 1f00: 00000000 00000000 00000000 60000013 00000000 ffffe000 c0803094 c08206e0 [ 27.438271] 1f20: c080a852 c065e3e0 00000000 c0801f5c c0801f50 c0801f50 c0102ec0 c05a6814 [ 27.446494] 1f40: 60000013 ffffffff [ 27.450004] r10:00000000 r9:c0800000 r8:c080a852 r7:c0801f34 r6:ffffffff r5:60000013 [ 27.457875] r4:c05a6814 [ 27.460441] [] (default_idle_call) from [] (do_idle+0x84/0x144) [ 27.468154] [] (do_idle) from [] (cpu_startup_entry+0x14/0x18) [ 27.475774] r10:00721c14 r9:c0723a20 r8:c7ffcc80 r7:00000000 r6:c0803020 r5:ffffffff [ 27.483654] r4:c0809c4c r3:40000013 [ 27.487258] [] (cpu_startup_entry) from [] (rest_init+0x74/0x94) [ 27.495063] [] (rest_init) from [] (start_kernel+0x3a0/0x424) [ 27.502595] r5:ffffffff r4:c08299a0 [ 27.506188] [] (start_kernel) from [<00008048>] (0x8048) [ 27.512404] ---[ end trace 351d5fe97981d9fa ]---