The issue did not start happening after an update - I just got this NVM
device, and kernel 4.10.0-24.28-generic was the latest one at the time.
I tried the mainline kernel version
linux-image-4.12.0-041200-generic_4.12.0-041200.201707022031_amd64.deb
and the bug did _not_ reproduce on that. Tagging as kernel-fixed-upstream.
** Tags added: kernel-fixed-upstream
** Changed in: linux (Ubuntu)
Status: Incomplete => Confirmed
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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.
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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
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