Ran apport. Note that while during that apport run the kernel was marked as tainted because of the proprietary NVIDIA driver, the bug also replicates without that driver loaded in an untainted kernel. The dmesg logs I posted earlier are of that state.
-- 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/1700225 Title: Writing to GPT partition on NVM device triggers "Kernel BUG" Status in linux package in Ubuntu: Confirmed Bug description: When I try writing a large amount of data to a GPT partition on my NVM SSD using dd, after a second or so I get "kernel BUG" messages in dmesg, and the writing comes to a halt. The machine remains responsive and I can write to other disks, but if I run "sync", it hangs forever. The bug is 100 % repeatable. To replicate, run: dd if=/dev/zero of=/dev/nvme0n1p1 This happens only when I write more than 0.5-1.5 GiB to a GPT partition on the NVM device. The bug does not happen in the following cases: - writing just 500 MB on a GPT partition - writing to the raw device (/dev/nvme0n1) - writing to a DOS partition (i.e. when the NVM device is using a DOS style partition table) The device in question is a 1 TB Samsung 960 EVO M.2 SSD. Ubuntu release: 17.04 I have dmesg logs available of four instances of this happening, with very similar stack traces. I will be happy to experiment and provide any additional information you may need. --- ApportVersion: 2.20.4-0ubuntu4.1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: jl 1792 F.... pulseaudio /dev/snd/controlC0: jl 1792 F.... pulseaudio CurrentDesktop: Unity:Unity7 DistroRelease: Ubuntu 17.04 IwConfig: lo no wireless extensions. enp0s31f6 no wireless extensions. MachineType: System manufacturer System Product Name NonfreeKernelModules: nvidia_uvm nvidia_drm nvidia_modeset nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.10.0-24-generic root=UUID=1fb7b4e5-d026-4b10-a87b-c7726fe0b1a3 ro ProcVersionSignature: Ubuntu 4.10.0-24.28-generic 4.10.15 RelatedPackageVersions: linux-restricted-modules-4.10.0-24-generic N/A linux-backports-modules-4.10.0-24-generic N/A linux-firmware 1.164.1 RfKill: Tags: zesty Uname: Linux 4.10.0-24-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 09/19/2016 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2202 dmi.board.asset.tag: Default string dmi.board.name: Z170-A dmi.board.vendor: ASUSTeK COMPUTER INC. dmi.board.version: Rev 1.xx dmi.chassis.asset.tag: Default string dmi.chassis.type: 3 dmi.chassis.vendor: Default string dmi.chassis.version: Default string dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr2202:bd09/19/2016:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnZ170-A:rvrRev1.xx:cvnDefaultstring:ct3:cvrDefaultstring: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1700225/+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
