This bug is missing log files that will aid in diagnosing the problem. While running an Ubuntu kernel (not a mainline or third-party kernel) please enter the following command in a terminal window:
apport-collect 1743946 and then change the status of the bug to 'Confirmed'. If, due to the nature of the issue you have encountered, you are unable to run this command, please add a comment stating that fact and change the bug status to 'Confirmed'. This change has been made by an automated script, maintained by the Ubuntu Kernel Team. ** Changed in: linux (Ubuntu) Status: New => Incomplete ** Tags added: artful -- 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/1743946 Title: kexec reboot = NMI: PCI system error (SERR) for reason a1 on CPU 0 Status in linux package in Ubuntu: Incomplete Bug description: On 16.04 with linux-image-lowlatency-hwe-16.04 amd64 (currently 4.13.0-30-lowlatency) with kexec-tools default-configured to handle reboots with the current kernel version (no GRUB detect) and /proc/cmdline. The system freezes either permanently (requiring a hard power-off) or for tens of seconds, showing (copied from a photograph): kexec_core: Starting new kernel nouveau 0000:01:00.0: DRM: GPU lockup - switching to software fbcon NMI: PCI system error (SERR) for reason a1 on CPU 0. Dazed and confused, but trying to continue Due to the nature of the failure there is no additional logging or clues. I tried "nopti" in case recent 'Meltdown' changes were responsible but it still happens. I've only just enabled kexec on this system so have no historical indications of it having worked. System is Dell XPS M1530, Core 2 Duo T9300, 4GB RAM To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1743946/+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