我收到一条消息，说我的硬盘空间不足，所以我删除了一些东西，一些我从未玩过的大型游戏等，几个小时后，我收到了同样的消息，所以我删除了更多大型的东西，什么也没做，我的硬盘空间很快就用完了。我最终将问题归结为一个 16 gb 的系统日志文件和一个 11 gb 的系统日志文件.1 文件。我打开它并收到此重复消息：
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: dbus_g_proxy_cancel_call: assertion 'pending != NULL' failed
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <info> (wlan0): supplicant interface state: starting -> down
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <warn> Trying to remove a non-existant call id.
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: nl80211: Driver does not support authentication/association or connect commands
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: Could not set interface wlan0 flags (UP): Cannot assign requested address
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: WEXT: Could not set interface 'wlan0' UP
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: wlan0: Failed to initialize driver interface
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <error> [1402608755.122976] [nm-supplicant-interface.c:997] interface_add_cb(): (wlan0): error adding interface: wpa_supplicant couldn't grab this interface.
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: dbus_g_proxy_cancel_call: assertion 'pending != NULL' failed
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <info> (wlan0): supplicant interface state: starting -> down
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <warn> Trying to remove a non-existant call id.
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: nl80211: Driver does not support authentication/association or connect commands
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: Could not set interface wlan0 flags (UP): Cannot assign requested address
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: WEXT: Could not set interface 'wlan0' UP
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: wlan0: Failed to initialize driver interface
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <error> [1402608755.123542] [nm-supplicant-interface.c:997] interface_add_cb(): (wlan0): error adding interface: wpa_supplicant couldn't grab this interface.
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: dbus_g_proxy_cancel_call: assertion 'pending != NULL' failed
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <info> (wlan0): supplicant interface state: starting -> down
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <warn> Trying to remove a non-existant call id.
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: nl80211: Driver does not support authentication/association or connect commands
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: Could not set interface wlan0 flags (UP): Cannot assign requested address
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: WEXT: Could not set interface 'wlan0' UP
Jun 12 17:32:35 adam-EP35-DS3L wpa_supplicant[1064]: wlan0: Failed to initialize driver interface
Jun 12 17:32:35 adam-EP35-DS3L NetworkManager[944]: <error> [1402608755.124093] [nm-supplicant-interface.c:997] interface_add_cb(): (wlan0): error adding interface: wpa_supplicant couldn't grab this interface.
知道如何解决这个问题吗？仅供参考，虽然我已经使用 ubuntu 有一段时间了，但我还是个菜鸟，所以请详细说明。