apport information ** Attachment added: "CurrentDmesg.txt" https://bugs.launchpad.net/bugs/1743946/+attachment/5038984/+files/CurrentDmesg.txt
-- 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 --- ApportVersion: 2.20.1-0ubuntu2.15 Architecture: amd64 AudioDevicesInUse: Error: [Errno 2] No such file or directory CurrentDesktop: XFCE DistroRelease: Ubuntu 16.04 JournalErrors: -- Logs begin at Wed 2018-01-10 04:01:51 UTC, end at Thu 2018-01-18 13:41:03 UTC. -- Jan 18 07:08:41 hostname dnsmasq[868]: warning: no upstream servers configured MachineType: Dell Inc. XPS M1530 Package: linux (not installed) ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-30-lowlatency root=UUID=2edb423c-3c9d-4031-a18a-99f112ad48c1 ro nopti acpi_osi=! "acpi_osi=Windows 2006" pci=assign-busses,pcie_scan_all,realloc crashkernel=384M-2G:128M,2G-:256M ProcVersionSignature: Ubuntu 4.13.0-30.33~16.04.1-lowlatency 4.13.13 RelatedPackageVersions: linux-restricted-modules-4.13.0-30-lowlatency N/A linux-backports-modules-4.13.0-30-lowlatency N/A linux-firmware 1.157.15 Tags: xenial Uname: Linux 4.13.0-30-lowlatency x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm disk plugdev sudo WifiSyslog: _MarkForUpload: True dmi.bios.date: 11/19/2008 dmi.bios.vendor: Dell Inc. dmi.bios.version: A12 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA12:bd11/19/2008:svnDellInc.:pnXPSM1530:pvr:rvnDellInc.:rn:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: XPS M1530 dmi.sys.vendor: Dell Inc. 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