Hi, When launching the hostapd application on a i.MX7 based board with an ath10k device connected via SDIO, the following "NOHZ tick-stop error" messages are seen: # hostapd /etc/wifi.conf Configuration file: /etc/wifi.conf wlan0: interface state UNINITIALIZED->COUNTRY_UPDATE [ 63.021149] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! Using interface wlan0 with hwaddr 00:1f:7b:31:04:a0 and ssid "thessid" [ 67.332470] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready wlan0: interface state COUNTRY_UPDATE->ENABLED wlan0: AP-ENABLED [ 68.025845] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 69.025973] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 69.607432] cfg80211: failed to load regulatory.db [ 72.026748] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 73.027039] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 74.027159] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 75.027109] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 76.027461] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 77.027391] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! [ 78.027560] NOHZ tick-stop error: Non-RCU local softirq work is pending, handler #08!!! This happens on all kernel versions from 5.10 to 5.13. Any ideas on how to fix this problem? Thanks, Fabio Estevam
