apport information
** Tags added: apport-collected
** Description changed:
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.
+ 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
** Attachment added: "AlsaInfo.txt"
https://bugs.launchpad.net/bugs/1700225/+attachment/4902062/+files/AlsaInfo.txt
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https://bugs.launchpad.net/bugs/1700225
Title:
Writing to GPT partition on NVM device triggers "Kernel BUG"
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