On Thu, 23 Jul 2015 12:31:18 +0530, Amit Gupta said: > Configuration file: /etc/hostapd.conf > [ 199.672712] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready > Failed to update rate sets in kernel module > [ 199.687566] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready > Using interface wlan0 with hwaddr 00:0e:8e:38:29:e6 and ssid 'test_wifi_2' > > > Eventhough I am getting this error log from user space application(hostapd) > code, my wifi device is working fine. But I want to remove this error log > and want to know the root cause this error log.
My gut reaction is that hostapd is issuing ioctl() calls in the wrong order and/or failing to allow a long enough delay or wait for a specific event. I'd recommend running something like: # strace -f hostapd -B /etc/hostapd.conf > /tmp/strace.out 2>&1 and go look for what failing call was made just before the write call that output 'Failed to update'. Hopefully, tracing the flow of that call will reveal a kernel code path that output the 'link is not ready' message. Then you'll know what 'if (somecondition)' landed you in that situation. Knowing that, it will become a lot easier to figure out what happened.
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