ath79: Archer C7 v1 CPU hang
Username: psyborg
Origin: https://bugs.openwrt.org/index.php?do=details&task_id=2172
OpenWrt SNAPSHOT, r9548-9f818cb0
boot ramdisk image, set password and configure wifi with following settings:
config wifi-device 'radio0' option type 'mac80211' option hwmode '11g' option path 'platform/ahb/ahb:apb/18100000.wmac' option channel '5' option htmode 'HT40' option txpower '25' option country 'US' option legacy_rates '0'
config wifi-iface 'default_radio0' option device 'radio0' option network 'lan' option mode 'ap' option encryption 'psk2+ccmp' option key 'gsthrsrt6uhsthw6wu54ws' option ieee80211w '1' option wpa_disable_eapol_key_retries '1' option ssid 'OpenWrt2'
do some iperf traffic both ways (~130Mbps) for few minutes
executed command iw phy0 set distance auto, ran few short iperf tests after that
from luci unchecked Allow legacy 802.11b rates and hit apply
wifi doesn’t come up, CPU hangs, no additional messages on console except below posted and console don’t respond. device restarted automatically within a minute or so.
[ 1125.499211] device wlan0 left promiscuous mode [ 1125.503804] br-lan: port 2(wlan0) entered disabled state [ 1126.181396] br-lan: port 2(wlan0) entered blocking state [ 1126.186789] br-lan: port 2(wlan0) entered disabled state [ 1126.192445] device wlan0 entered promiscuous mode [ 1126.197272] br-lan: port 2(wlan0) entered blocking state [ 1126.202691] br-lan: port 2(wlan0) entered forwarding state [ 1126.527341] br-lan: port 2(wlan0) entered disabled state [ 1128.047343] ath: phy0: Unable to reset channel, reset status -5