The command line contains obvious errors: the -D (driver name) option requires a parameter (typically "wext") which is missing. Additionally, at the end there's an option "wlan0" that probably shouldn't be there.
How are you starting wpa_supplicant? Directly/manually or via some network configuration program? ** Changed in: wpasupplicant (Ubuntu) Status: Unconfirmed => Needs Info -- [apport] wpa_supplicant crashed with SIGSEGV https://launchpad.net/bugs/99788 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs