Comment 20 for bug 761558

I also found a crash (probably unrelated to IPv6).

In this syslog, I booted the Live CD on a computer connected to a dual-stacked network using wired ethernet. As in test #1 above, it connected only using IPv4, apparently ignoring that the default IPv6 mode was «automatic». I entered the connection editor, looked around, and pressed save/apply/ok (or something like that) - without actually having changed any of the settings. NetworkManager instantly crashed:

Aug 6 13:59:54 ubuntu NetworkManager[1695]: <info> Saved default wired connection 'Wired connect
ion 1' to persistent storage
Aug 6 13:59:54 ubuntu NetworkManager[1695]: nm_connection_duplicate: assertion `NM_IS_CONNECTION
 (connection)' failed
Aug 6 13:59:54 ubuntu NetworkManager[1695]: nm_connection_for_each_setting_value: assertion `NM_
IS_CONNECTION (connection)' failed
Aug 6 13:59:54 ubuntu kernel: [ 77.405230] NetworkManager[1695]: segfault at aaaaaaaa ip 00e4d
6b2 sp bf952e40 error 4 in libgobject-2.0.so.0.2914.0[e19000+4f000]
Aug 6 13:59:54 ubuntu dbus[1420]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Aug 6 13:59:55 ubuntu modem-manager[1463]: <info> Caught signal 15, shutting down...
Aug 6 13:59:55 ubuntu kernel: [ 78.630912] init: network-manager main process (1695) killed by SEGV signal
Aug 6 13:59:55 ubuntu kernel: [ 78.630942] init: network-manager main process ended, respawning

After this, NM automatically restarted, and attempted to re-connect to the network. Now it *DID* attempt DHCPv6 as well, however it failed for four consecutive times with the «didn't bind to a lease» error, until it finally succeeded on the fifth try, this time correctly configuring all IPv6 information.

Tore