Okay, I think I found the cause of the problem, this [ntdriver:3632] part of the error message that the remote user didn't tell me helped me isolate the problem :
Both machines that hanged after upgrade have a Thomson WLG-1500A USB Wi- Fi adapter, which is driven via ndiswrapper and the "sis163u" windows driver. Unpluging this adapter allowed the machine to boot the new kernel without crashing. Now the issue seems to relate between this precise driver and ndiswrapper/kernel, for I have upgraded a laptop that also uses ndiswrapper for Wi-Fi (but with a different Wi-Fi susbsystem) and this one showed no problem. It's quite annoying that the use of the Thomson WLG-1500A USB Wi-Fi adapter + ndiswrapper causes such a major system lock-up after updrade, because this precise adapter has been given out by the major ISP in France (France Telecom / Orange / Wanadoo) to a huge number of customers, with its "livebox" DSL solution... So for sure you are gonna get tons of bugs reports related to the same adapter... Now I'm stuck with the issue : How to get this thing to work in Hardy ? -- Hardy: Kernel 2.6.24-16-generic hangs on machine https://bugs.launchpad.net/bugs/226096 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