Summary: Kernel bug (unhandled paging request) on "udisksctl power-off"
Affects | Status | Importance | Assigned to | Milestone | |
---|---|---|---|---|---|
linux (Ubuntu) |
Fix Released
|
Medium
|
Unassigned |
Bug Description
lsb_release -rd
Description: Ubuntu 16.04.5 LTS
Release: 16.04
uname -a
Linux metabox 4.4.0-139-generic #165-Ubuntu SMP Wed Oct 24 10:58:50 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
Steps (1) to reproduce:
1) Plug in a USB3 hard drive.
2) Right click on launcher icon.
3) Select "Safely Remove".
After finding this: https:/
...the following steps also reproduce the problem.
Steps (2) to reproduce:
1) Plugin in a USB3 hard drive.
2) udisksctl unmount -b /dev/sdXY
3) udisksctl power-off -b /dev/sdX
System completely locks and becomes unresponsive, such that even the Magic SysRq key combination does nothing.
Most of the time the fans on my laptop go crazy (so the CPU must get stuck in some loop), but once they did not and the system was just locked (without the fans going nuts).
I can't get a textual copy of the kernel bug log (because I have to do a hard reset to regain control of the system and the output doesn't get flushed to disk), but I did manage to get a photo of some of it (please refer to attachment).
---
ApportVersion: 2.20.1-0ubuntu2.18
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC1D0p: matt 2754 F...m pulseaudio
/dev/snd/
/dev/snd/
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
EcryptfsInUse: Yes
HibernationDevice: RESUME=
InstallationDate: Installed on 2016-04-23 (940 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
MachineType: Notebook N150SD/N155SD
NonfreeKernelMo
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=
ProcVersionSign
RelatedPackageV
linux-
linux-
linux-firmware 1.157.20
Tags: xenial
Uname: Linux 4.4.0-139-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo vboxusers wireshark
_MarkForUpload: True
dmi.bios.date: 03/31/2015
dmi.bios.vendor: American Megatrends Inc.
dmi.bios.version: 1.03.05
dmi.board.
dmi.board.name: N150SD/N155SD
dmi.board.vendor: Notebook
dmi.board.version: Not Applicable
dmi.chassis.
dmi.chassis.type: 9
dmi.chassis.vendor: Notebook
dmi.chassis.
dmi.modalias: dmi:bvnAmerican
dmi.product.name: N150SD/N155SD
dmi.product.
dmi.sys.vendor: Notebook
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 1803929
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.