CPU soft lockup when using lspci

[Jimmy Pan]

Kernel:
4.4.0-10-generic

Machine:
Dell Inspiron 15 i7559

CPU:
Intel i5-6300hq

Note:
The soft lockup happened a lot, like using lshw, during installation, when powering off, etc..
---
ApportVersion: 2.20-0ubuntu3
Architecture: amd64
AudioDevicesInUse:
 USER PID ACCESS COMMAND
 /dev/snd/pcmC0D0p: pjm 3551 F...m pulseaudio
 /dev/snd/controlC0: pjm 3551 F.... pulseaudio
CurrentDesktop: Unity
DistroRelease: Ubuntu 16.04
HibernationDevice: RESUME=UUID=447ec3f7-71bc-498d-ba0f-03ed68deccf2
InstallationDate: Installed on 2016-02-27 (11 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Alpha amd64 (20160225)
MachineType: Dell Inc. Inspiron 7559
Package: linux (not installed)
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-4.4.0-10-generic.efi.signed root=UUID=d19074ca-3e53-4e29-b6ba-95daa56f7da0 ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 4.4.0-10.25-generic 4.4.3
RelatedPackageVersions:
 linux-restricted-modules-4.4.0-10-generic N/A
 linux-backports-modules-4.4.0-10-generic N/A
 linux-firmware 1.156
Tags: xenial
Uname: Linux 4.4.0-10-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip libvirtd lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 01/14/2016
dmi.bios.vendor: Dell Inc.
dmi.bios.version: 1.1.5
dmi.board.name: 0H87XC
dmi.board.vendor: Dell Inc.
dmi.board.version: A00
dmi.chassis.type: 8
dmi.chassis.vendor: Dell Inc.
dmi.chassis.version: Not Specified
dmi.modalias: dmi:bvnDellInc.:bvr1.1.5:bd01/14/2016:svnDellInc.:pnInspiron7559:pvr1.1.5:rvnDellInc.:rn0H87XC:rvrA00:cvnDellInc.:ct8:cvrNotSpecified:
dmi.product.name: Inspiron 7559
dmi.product.version: 1.1.5
dmi.sys.vendor: Dell Inc.

[Brad Figg (brad-figg)]

This bug is missing log files that will aid in diagnosing the problem. From a terminal window please run:

apport-collect 1555099

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.

[Joseph Salisbury (jsalisbury)]

Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?

Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.5 kernel[0].

If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'.

If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'.

Once testing of the upstream kernel is complete, please mark this bug as "Confirmed".

Thanks in advance.

[0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.5-rc7-wily/

[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

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[Jimmy Pan (dspjmr)]

Tested on the 4.5 rc7 kernel, problem still exists.

I think this is quite serious, since some programs invoked lspci and which caused my computer to hang as well.

[Jimmy Pan (dspjmr)]

Anybody is going to fix this, please?