Public bug reported:
On kernel 4.10 from the linux-hwe-edge package, I'm experiencing frequent
freezes on my surface pro 3. This starts mostly when using firefox, where first
firefox freezes (window is becoming grey). When I don't close firefox
immediately (killing it, as its window greyed out), the complete system kinda
locks up.
When I kill it, its process is still as defunct visible in the process list,
and I can't start a new instance of firefox.
When I don't kill it, the NMI watchdog BUG occurs shortly after and I
have to shut down the system via power button. It's not completely dead,
as I can still ping the device and when I'm ssh'd into it, the shell is
not completely dead. I'm having a tail -f /var/log/syslog open via ssh,
as I can't look into it anymore when the desktop environment locked up.
Here I can close the tail -f command, but can't start any new processes.
This did not happen with the linux-signed-image-generic-hwe-16.04
(4.8.0.51.22) yet.
apt-cache policy linux-image-generic-hwe-16.04-edge: 4.10.0.20.13
lsb_release -rd: Ubuntu 16.04.2 LTS
I attached the excerpt of /var/log/syslog.
ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: linux-generic-hwe-16.04-edge (not installed)
ProcVersionSignature: Ubuntu 4.8.0-51.54~16.04.1-generic 4.8.17
Uname: Linux 4.8.0-51-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CurrentDesktop: Unity
Date: Fri May 5 16:41:03 2017
InstallationDate: Installed on 2015-11-12 (540 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Release amd64 (20151021)
SourcePackage: linux-meta-hwe-edge
UpgradeStatus: Upgraded to xenial on 2016-07-29 (279 days ago)
** Affects: linux-meta-hwe-edge (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug xenial
** Attachment added: "Excerpt of /var/log/syslog with kernel BUG and NMI
watchdog BUG"
https://bugs.launchpad.net/bugs/1688587/+attachment/4872310/+files/hwe_nmi.txt
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https://bugs.launchpad.net/bugs/1688587
Title:
NMI watchdog: BUG: soft lockup - CPU#1 stuck for 22s! [khugepaged:38]
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