Note: kworker/0:1 was found to have extremely CPU usage through ps
-auxf:
root 15854 50.0 0.0 0 0 ? R 17:35 2:09 \_
[kworker/0:1]
There are a number of other threads with similar output:
kworker/0:3-1128 [000] d.s2 1973.688813: workqueue_queue_work: work
struct=ffff88046f2135d8 function=od_dbs_timer [cpufreq_ondemand]
workqueue=ffff88046d17ba00 req_cpu=0 cpu=0
kworker/0:3-1128 [000] d.h2 1973.704711: workqueue_queue_work: work
struct=ffffffff819b85e0 function=push_to_pool workqueue=ffff88046d17ba00
req_cpu=32 cpu=0
kworker/0:3-1128 [000] d.h3 1973.757128: workqueue_queue_work: work
struct=ffff88045db116e0 function=nouveau_connector_hotplug_work
workqueue=ffff88046d17ba00 req_cpu=32 cpu=0
kworker/0:3-1128 [000] d.h3 1973.830281: workqueue_queue_work: work
struct=ffff88045db116e0 function=nouveau_connector_hotplug_work
workqueue=ffff88046d17ba00 req_cpu=32 cpu=0
kworker/0:3-1128 [000] d.s3 1973.838757: workqueue_queue_work: work
struct=ffff88046f2135d8 function=od_dbs_timer [cpufreq_ondemand]
workqueue=ffff88046d17ba00 req_cpu=0 cpu=0
kworker/0:3-1128 [000] d.h2 1973.859889: workqueue_queue_work: work
struct=ffffffff819b85e0 function=push_to_pool workqueue=ffff88046d17ba00
req_cpu=32 cpu=0
kworker/0:3-1128 [000] d.h3 1973.903514: workqueue_queue_work: work
struct=ffff88045db116e0 function=nouveau_connector_hotplug_work
workqueue=ffff88046d17ba00 req_cpu=32 cpu=0
^C
The output is from: /sys/kernel/debug/tracing/trace_pipe
It appears that the hotplug function is failing and being readded to the queue
over and over again.
Note that this output was obtained while the nouveau GPU was active via
vga_switcheroo.
--
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to xserver-xorg-video-nouveau in Ubuntu.
https://bugs.launchpad.net/bugs/1248256
Title:
[MacBookPro10,1] Plugging in displayport monitor causes kworker to
take 100% CPU
Status in “xserver-xorg-video-nouveau” package in Ubuntu:
Confirmed
Bug description:
I'm seeing the same symptoms as described by:
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-
nouveau/+bug/1020221
I thought it would be worth reporting, because I just upgraded to the
new Ubuntu 13.10, so it hasn't been resolved yet.
ProblemType: Bug
DistroRelease: Ubuntu 13.10
Package: xserver-xorg-video-nouveau 1:1.0.9-2ubuntu1
ProcVersionSignature: Ubuntu 3.11.0-12.19-generic 3.11.3
Uname: Linux 3.11.0-12-generic x86_64
NonfreeKernelModules: wl
.tmp.unity.support.test.0:
ApportVersion: 2.12.5-0ubuntu2.1
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
Date: Tue Nov 5 10:58:19 2013
DistUpgraded: 2013-11-03 13:42:12,641 DEBUG enabling apt cron job
DistroCodename: saucy
DistroVariant: ubuntu
DkmsStatus:
bcmwl, 6.30.223.141+bdcom, 3.11.0-12-generic, x86_64: installed
bcmwl, 6.30.223.141+bdcom, 3.8.0-32-generic, x86_64: installed
virtualbox, 4.2.16, 3.11.0-12-generic, x86_64: installed
virtualbox, 4.2.16, 3.8.0-32-generic, x86_64: installed
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:00f7]
NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] [10de:0fd5] (rev a1)
(prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:00f2]
InstallationDate: Installed on 2013-07-03 (125 days ago)
InstallationMedia: Ubuntu 13.04 "Raring Ringtail" - Release amd64 (20130424)
MachineType: Apple Inc. MacBookPro10,1
MarkForUpload: True
ProcEnviron:
LANGUAGE=en_US
TERM=xterm
PATH=(custom, no user)
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcKernelCmdLine: \boot\vmlinuz-3.11.0-12-generic ro
root=UUID=759bfd6b-68b3-4455-ba2a-c79286c0bcc1
initrd=boot\initrd.img-3.11.0-12-generic
SourcePackage: xserver-xorg-video-nouveau
UpgradeStatus: Upgraded to saucy on 2013-11-03 (1 days ago)
dmi.bios.date: 12/21/2012
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP101.88Z.00EE.B03.1212211437
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-C3EC7CD22292981F
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro10,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-C3EC7CD22292981F
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B03.1212211437:bd12/21/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F:
dmi.product.name: MacBookPro10,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.46-1
version.libgl1-mesa-dri: libgl1-mesa-dri 9.2.1-1ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 9.2.1-1ubuntu3
version.xserver-xorg-core: xserver-xorg-core 2:1.14.3-3ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.7.3-0ubuntu3.1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.2.0-0ubuntu10
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.904-0ubuntu2
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.9-2ubuntu1
xserver.bootTime: Tue Nov 5 10:24:31 2013
xserver.configfile: default
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.3-3ubuntu2
xserver.video_driver: nouveau
---
.tmp.unity.support.test.0:
ApportVersion: 2.13.2-0ubuntu2
Architecture: amd64
CompizPlugins: No value set for
`/apps/compiz-1/general/screen0/options/active_plugins'
CompositorRunning: compiz
CompositorUnredirectDriverBlacklist: '(nouveau|Intel).*Mesa 8.0'
CompositorUnredirectFSW: true
CurrentDesktop: Unity
DistUpgraded: Fresh install
DistroCodename: trusty
DistroRelease: Ubuntu 14.04
DistroVariant: ubuntu
ExtraDebuggingInterest: Yes
GraphicsCard:
Intel Corporation 3rd Gen Core processor Graphics Controller [8086:0166]
(rev 09) (prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:00f7]
NVIDIA Corporation GK107M [GeForce GT 650M Mac Edition] [10de:0fd5] (rev a1)
(prog-if 00 [VGA controller])
Subsystem: Apple Inc. Device [106b:00f2]
InstallationDate: Installed on 2014-01-31 (0 days ago)
InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64+mac (20140130)
MachineType: Apple Inc. MacBookPro10,1
Package: xserver-xorg-video-nouveau 1:1.0.10-1ubuntu1
PackageArchitecture: amd64
ProcKernelCmdLine: \boot\vmlinuz-3.13.0-5-generic ro
root=UUID=ac629b0b-84b0-46a1-9aae-ecb1ecfdc46c
initrd=boot\initrd.img-3.13.0-5-generic
ProcVersionSignature: Ubuntu 3.13.0-5.20-generic 3.13.0
Tags: trusty ubuntu reproducible compiz-0.9
Uname: Linux 3.13.0-5-generic x86_64
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo
_MarkForUpload: True
dmi.bios.date: 12/21/2012
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP101.88Z.00EE.B03.1212211437
dmi.board.asset.tag: Base Board Asset Tag#
dmi.board.name: Mac-C3EC7CD22292981F
dmi.board.vendor: Apple Inc.
dmi.board.version: MacBookPro10,1
dmi.chassis.type: 10
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-C3EC7CD22292981F
dmi.modalias:
dmi:bvnAppleInc.:bvrMBP101.88Z.00EE.B03.1212211437:bd12/21/2012:svnAppleInc.:pnMacBookPro10,1:pvr1.0:rvnAppleInc.:rnMac-C3EC7CD22292981F:rvrMacBookPro10,1:cvnAppleInc.:ct10:cvrMac-C3EC7CD22292981F:
dmi.product.name: MacBookPro10,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
version.compiz: compiz 1:0.9.10+13.10.20131011-0ubuntu1
version.ia32-libs: ia32-libs N/A
version.libdrm2: libdrm2 2.4.52-1
version.libgl1-mesa-dri: libgl1-mesa-dri 10.0.1-1ubuntu2
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 10.0.1-1ubuntu2
version.xserver-xorg-core: xserver-xorg-core 2:1.14.5-1ubuntu2
version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.8.2-1ubuntu1
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:7.3.0-1ubuntu1
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.99.907-0ubuntu1
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau
1:1.0.10-1ubuntu1
xserver.bootTime: Thu Jan 30 19:51:12 2014
xserver.configfile: default
xserver.errors:
Failed to load module "nvidia" (module does not exist, 0)
Failed to load module "nvidia" (module does not exist, 0)
NOUVEAU(G0): [XvMC] Failed to initialize extension.
xserver.logfile: /var/log/Xorg.0.log
xserver.version: 2:1.14.5-1ubuntu2
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