Public bug reported:
Since upgrading to Kubuntu 17.10 my HP EliteBook 820 G3 hangs at
unpredictable times. I have experienced probably 20 hangs. Once the
system is hung no mouse movement, NumLock toggle, VT switch,
Ctrl+Alt+Del, SysRq keys, SSH attempts have any effect whatsoever. Any
audio playing is stuck looping in the hardware buffer. The system is
really stuck. Only the keyboard backlight is still responsive.
The only correlation I have noticed is that the system only hangs if
WiFi is enabled. This morning I experienced two hangs in ten minutes
necessitating reboots. Having disabled WiFi the system has been stable
since ~1100 (~5 hours).
Often, I see a iwlwifi hardware reset in the logs before the system
dies:
/var/log/syslog:Oct 30 11:49:30 fry kernel: [ 6529.550751] iwlwifi
0000:02:00.0: Microcode SW error detected. Restarting 0x82000000.
(apport has hopefully uploaded the full log, please lmk if not).
Sometimes the message doesn't make it into the logs, and ext4 truncates
the file at the next mount.
There seems to be no correlation with any messages immediately before
the wifi chip dies. It doesn't seem to matter whether I'm at home or at
work. I have wired ethernet at work simultaneously with wifi, but the
wifi provides IPv6 so I would imagine most traffic uses wifi, so it's
hard to say whether there's any effect of the traffic load on the
probability of failure.
Here is a sample of the firmware load:
/var/log/syslog.5.gz:Oct 24 15:37:26 fry kernel: [ 7.604743] iwlwifi
0000:02:00.0: enabling device (0000 -> 0002)
/var/log/syslog.5.gz:Oct 24 15:37:26 fry kernel: [ 7.611790] iwlwifi
0000:02:00.0: Direct firmware load for iwlwifi-8000C-33.ucode failed with error
-2
/var/log/syslog.5.gz:Oct 24 15:37:26 fry kernel: [ 7.611930] iwlwifi
0000:02:00.0: Direct firmware load for iwlwifi-8000C-32.ucode failed with error
-2
/var/log/syslog.5.gz:Oct 24 15:37:26 fry kernel: [ 7.620028] iwlwifi
0000:02:00.0: loaded firmware version 31.532993.0 op_mode iwlmvm
/var/log/syslog.5.gz:Oct 24 15:37:26 fry kernel: [ 7.650972] iwlwifi
0000:02:00.0: Detected Intel(R) Dual Band Wireless AC 8260, REV=0x208
02:00.0 Network controller: Intel Corporation Wireless 8260 (rev 3a)
Any help appreciated.
Thanks,
Bruce
ProblemType: Bug
DistroRelease: Ubuntu 17.10
Package: xorg 1:7.7+19ubuntu3
ProcVersionSignature: Ubuntu 4.13.0-16.19-generic 4.13.4
Uname: Linux 4.13.0-16-generic x86_64
ApportVersion: 2.20.7-0ubuntu3.1
Architecture: amd64
CompositorRunning: None
CurrentDesktop: KDE
Date: Mon Oct 30 16:15:43 2017
DistUpgraded: 2017-10-15 14:47:25,517 DEBUG Running PostInstallScript:
'./xorg_fix_proprietary.py'
DistroCodename: artful
DistroVariant: kubuntu
GraphicsCard:
Intel Corporation HD Graphics 520 [8086:1916] (rev 07) (prog-if 00 [VGA
controller])
Subsystem: Hewlett-Packard Company HD Graphics 520 [103c:807c]
InstallationDate: Installed on 2016-09-09 (416 days ago)
InstallationMedia: Kubuntu 16.04.1 LTS "Xenial Xerus" - Release amd64 (20160719)
MachineType: HP HP EliteBook 820 G3
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-16-generic.efi.signed
root=/dev/mapper/kubuntu--vg-root ro
SourcePackage: xorg
Symptom: display
UpgradeStatus: Upgraded to artful on 2017-10-15 (15 days ago)
dmi.bios.date: 11/01/2016
dmi.bios.vendor: HP
dmi.bios.version: N75 Ver. 01.13
dmi.board.name: 807C
dmi.board.vendor: HP
dmi.board.version: KBC Version 85.74
dmi.chassis.asset.tag: 5CG6354JW5
dmi.chassis.type: 10
dmi.chassis.vendor: HP
dmi.modalias:
dmi:bvnHP:bvrN75Ver.01.13:bd11/01/2016:svnHP:pnHPEliteBook820G3:pvr:rvnHP:rn807C:rvrKBCVersion85.74:cvnHP:ct10:cvr:
dmi.product.family: 103C_5336AN G=N L=BUS B=HP S=ELI
dmi.product.name: HP EliteBook 820 G3
dmi.sys.vendor: HP
version.compiz: compiz N/A
version.libdrm2: libdrm2 2.4.83-1
version.libgl1-mesa-dri: libgl1-mesa-dri 17.2.2-0ubuntu1
version.libgl1-mesa-glx: libgl1-mesa-glx 17.2.2-0ubuntu1
version.xserver-xorg-core: xserver-xorg-core 2:1.19.5-0ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.10.5-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.10.0-1
version.xserver-xorg-video-intel: xserver-xorg-video-intel
2:2.99.917+git20170309-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:1.0.15-2
** Affects: xorg (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug artful fonts kubuntu
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which is subscribed to xorg in Ubuntu.
https://bugs.launchpad.net/bugs/1728651
Title:
System hangs after iwlwifi firmware crash
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