wifi 配置如下：
sudo wpa_passphrase G-STAR2 G-STAR1211 > /etc/wpa_supplicant.conf
运行如下：
sudo wpa_supplicant -i wlan0 -c /etc/wpa_supplicant/wpa_supplicant.conf
终端显示：
a_supplicant/wpa_supplicant.confplicant$ sudo wpa_supplicant -i wlan0 -c /etc/wpa
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWSCAN]: Device or resource busy
wlan0: Failed to initiate AP scan
ioctl[SIOCSIWSCAN]: Device or resource busy
wlan0: Failed to initiate AP scan
wlan0: Trying to associate with a0:63:91:34:b1:63 (SSID='G-STAR2' freq=2472 MHz)
ioctl[SIOCSIWFREQ]: Device or resource busy
ioctl[SIOCSIWESSID]: Device or resource busy
wlan0: Association request to the driver failed
wlan0: Associated with a0:63:91:34:b1:63
wlan0: WPA: Key negotiation completed with a0:63:91:34:b1:63 [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to a0:63:91:34:b1:63 completed (auth) [id=0 id_str=]
wlan0: CTRL-EVENT-DISCONNECTED bssid=a0:63:91:34:b1:63 reason=0
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
wlan0: Trying to associate with a0:63:91:34:b1:63 (SSID='G-STAR2' freq=2472 MHz)
ioctl[SIOCSIWFREQ]: Device or resource busy
wlan0: Association request to the driver failed
wlan0: Associated with a0:63:91:34:b1:63
wlan0: WPA: Key negotiation completed with a0:63:91:34:b1:63 [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to a0:63:91:34:b1:63 completed (reauth) [id=0 id_str=]
wlan0: CTRL-EVENT-DISCONNECTED bssid=a0:63:91:34:b1:63 reason=0
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
wlan0: Trying to associate with a0:63:91:34:b1:63 (SSID='G-STAR2' freq=2472 MHz)
ioctl[SIOCSIWFREQ]: Device or resource busy
wlan0: Association request to the driver failed
wlan0: Associated with a0:63:91:34:b1:63
wlan0: WPA: Key negotiation completed with a0:63:91:34:b1:63 [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to a0:63:91:34:b1:63 completed (reauth) [id=0 id_str=]
wlan0: CTRL-EVENT-DISCONNECTED bssid=a0:63:91:34:b1:63 reason=0
ioctl[SIOCSIWENCODEEXT]: Invalid argument
ioctl[SIOCSIWENCODEEXT]: Invalid argument
wlan0: Trying to associate with a0:63:91:34:b1:63 (SSID='G-STAR2' freq=2472 MHz)
ioctl[SIOCSIWFREQ]: Device or resource busy
wlan0: Association request to the driver failed
wlan0: Associated with a0:63:91:34:b1:63
wlan0: WPA: Key negotiation completed with a0:63:91:34:b1:63 [PTK=CCMP GTK=CCMP]
wlan0: CTRL-EVENT-CONNECTED - Connection to a0:63:91:34:b1:63 completed (reauth) [id=0 id_str=]
wlan0: CTRL-EVENT-DISCONNECTED bssid=a0:63:91:34:b1:63 reason=0
ioctl[SIOCSIWENCODEEXT]: Invalid argument
反正我发现，就是一时连上一时又连不上，退出后 ifconfig ，发现wlan0没有up上.
求大神解答！！
