Public bug reported:

I'm trying to connect, via a USB Wi-Fi dongle, to a Wi-Fi access point
"PHS300IC-a00" which is an open Wi-Fi access point. But it never
connects.

Looking in /var/log/syslog, I see modem-manager is segfaulting:

Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
starting connection 'PHS300IC-a00'
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> (wlan1): device state 
change: disconnected -> prepare (reason 'none') [30 40 0]
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
Stage 1 of 5 (Device Prepare) scheduled...
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
Stage 1 of 5 (Device Prepare) started...
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
Stage 2 of 5 (Device Configure) scheduled...
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
Stage 1 of 5 (Device Prepare) complete.
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
Stage 2 of 5 (Device Configure) starting...
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> (wlan1): device state 
change: prepare -> config (reason 'none') [40 50 0]
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation 
(wlan1/wireless): connection 'PHS300IC-a00' requires no security.  No secrets 
needed.
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Config: added 'ssid' 
value 'PHS300IC-a00'
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Config: added 
'scan_ssid' value '1'
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Config: added 
'key_mgmt' value 'NONE'
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Activation (wlan1) 
Stage 2 of 5 (Device Configure) complete.
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> Config: set interface 
ap_scan to 1
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> (wlan1): supplicant 
interface state: inactive -> scanning
Aug  2 13:38:57 craig-linux modem-manager[10094]: <info>  (ttyS4) closing 
serial port...
Aug  2 13:38:57 craig-linux modem-manager[10094]: <info>  (ttyS4) serial port 
closed
Aug  2 13:38:57 craig-linux kernel: [97809.600781] modem-manager[10094]: 
segfault at 0 ip 0000000000435b2f sp 00007fff6e32a4d0 error 6 in 
modem-manager[400000+66000]
Aug  2 13:38:57 craig-linux NetworkManager[1048]: <info> the modem manager 
disappeared
Aug  2 13:38:57 craig-linux dbus[998]: [system] Activating service 
name='org.freedesktop.ModemManager' (using servicehelper)
Aug  2 13:38:57 craig-linux modem-manager[10097]: <info>  ModemManager (version 
0.6.0.0) starting...


Ubuntu 13.04
modemmanager 0.6.0.0.really-0ubuntu5

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New

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https://bugs.launchpad.net/bugs/1207605

Title:
  modem-manager segfault trying to connect to Wi-Fi

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