I got similar issue, the kernel encountered NULL dereference to null error.
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. https://bugs.launchpad.net/bugs/1742721 Title: linux-image-4.13.0-26-generic / linux-image-extra-4.13.0-26-generic fail to boot Status in linux package in Ubuntu: In Progress Status in linux source package in Artful: In Progress Bug description: I've updated the machine to the linux-hwe kernels, and experienced an almost instant crash when booting. Nothing is shown on the VGA output, so no stack traces are available. I've tried booting a few kernels with the following results: - linux-image-4.8.0-56-generic + linux-image-extra-4.8.0-56-generic: boots up fine - linux-image-4.13.0-26-generic + linux-image-extra-4.13.0-26-generic: fails to boot - linux-image-4.13.0-21-generic: boots up, but since no r8169, no networking - linux-image-4.13.0-21-generic + linux-image-extra-4.13.0-21-generic: fails to boot - linux-image-4.10.0-42-generic + linux-image-extra-4.10.0-42-generic: boots up fine After that I've tried some mainline kernels from http://kernel.ubuntu.com/~kernel-ppa/mainline to check if the problem is the upstream or ubuntu patches: - linux-image-4.14.13-041413-generic_4.14.13-041413.201801101001_amd64.deb: boots up fine - linux-image-4.13.13-041313-generic_4.13.13-041313.201711150531_amd64.deb: fails to boot - linux-image-4.13.16-041316-generic_4.13.16-041316.201711240901_amd64.deb: boots up fine - linux-image-4.13.14-041314-generic_4.13.14-041314.201711180632_amd64.deb: fails to boot - linux-image-4.13.15-041315-generic_4.13.15-041315.201711211030_amd64.deb: boots up fine So, it seems, the problem is fixed either in patches between 4.13.14 and 4.13.15 upstream, or ubuntu configs/patches applied to mainline kernels. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1742721/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp
