After testing wicd I can say that I had no kernel panic with it. But the connection was also very unstable - after about 30minutes (varying from 5Minutes to about 2hours) I had to disconnect-connect.
Now I have switched back to network-manager and became very soon a kernel panic. Here is the log of /var/log/messages before the kernel-panic: Feb 7 19:37:24 a-t2050 -- MARK -- Feb 7 19:42:41 a-t2050 kernel: [ 1603.988151] CE: hpet increasing min_delta_ns to 22500 nsec -- Serious problems with wlan (iwl3945) since ubuntu 8.04 (also 8.10) https://bugs.launchpad.net/bugs/325418 You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs