Chad Miller, thank you for your comment. One may find it best to capture a kernel call trace following https://help.ubuntu.com/community/DebuggingSystemCrash , as the attachment https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1248287/+attachment/3942078/+files/log didn't have any useful information unfortunately.
Chad Miller, thank you for your comment. One may find it best to capture a kernel call trace following https:/ /help.ubuntu. com/community/ DebuggingSystem Crash , as the attachment https:/ /bugs.launchpad .net/ubuntu/ +source/ linux/+ bug/1248287/ +attachment/ 3942078/ +files/ log didn't have any useful information unfortunately.