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Message #132581
[Bug 1489622] Re: 15.10 20150826 snapshot -- MacBookPro3, 1 has high load (and temperature) despite low CPU and low IO
Would it be possible for you to test the latest upstream kernel? Refer
to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest
v4.2 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/v4.2-unstable/
** Also affects: linux (Ubuntu Wily)
Importance: High
Status: Confirmed
** Tags added: kernel-da-key
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https://bugs.launchpad.net/bugs/1489622
Title:
15.10 20150826 snapshot -- MacBookPro3,1 has high load (and
temperature) despite low CPU and low IO
Status in linux package in Ubuntu:
Confirmed
Status in linux source package in Wily:
Confirmed
Bug description:
I just put the 20150826 15.10 snapshot onto my MacBookPro3,1. I
blacklisted nouveau due to
https://bugs.freedesktop.org/show_bug.cgi?id=91779 and updated systemd
to start in text mode instead of launching X11.
After booting into this configuration and letting the system idle, it
is consuming only about 3% CPU but has a load average of 1.5
$ uptime
14:23:00 up 11 min, 3 users, load average: 1.65, 1.55, 0.95
$ vmstat 1
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 0 0 3803976 25900 109412 0 0 247 3 5519 6495 1 4 92 2 0
0 0 0 3803928 25900 109412 0 0 0 0 9652 11390 0 5 95 0 0
0 0 0 3803928 25900 109412 0 0 0 0 9680 11429 0 2 98 0 0
0 0 0 3803928 25900 109412 0 0 0 0 9651 11344 0 2 97 1 0
1 0 0 3803896 25900 109412 0 0 0 0 9659 11269 1 2 97 0 0
0 0 0 3803928 25900 109412 0 0 0 0 9660 11329 0 4 96 0 0
0 0 0 3803928 25900 109412 0 0 0 0 9589 11236 0 4 96 0 0
1 0 0 3803960 25900 109412 0 0 0 0 9531 11203 1 3 96 0 0
0 0 0 3803928 25900 109412 0 0 0 0 9590 11217 0 4 96 0 0
0 0 0 3803896 25900 109412 0 0 0 0 9601 11390 0 3 97 0 0
0 0 0 3803864 25900 109412 0 0 0 0 9527 11221 0 3 97 0 0
1 0 0 3803864 25900 109412 0 0 0 0 9652 11380 0 4 96 0 0
0 0 0 3803832 25900 109412 0 0 0 0 9661 11447 0 4 96 0 0
1 0 0 3803800 25900 109412 0 0 0 0 9595 11372 1 4 96 0 0
1 0 0 3803800 25900 109412 0 0 0 0 9569 11232 0 1 99 0 0
1 0 0 3803864 25900 109412 0 0 0 0 9538 11400 0 5 95 0 0
0 0 0 3803896 25900 109412 0 0 0 0 9520 11205 0 5 95 0 0
0 0 0 3803864 25900 109412 0 0 0 0 9468 11121 0 2 98 0 0
0 0 0 3803864 25900 109412 0 0 0 0 9678 11436 0 4 96 0 0
1 0 0 3803864 25900 109412 0 0 0 0 9639 11229 1 4 96 0 0
0 0 0 3803896 25900 109412 0 0 0 0 9776 11504 0 3 97 0 0
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 0 0 3803912 25900 109412 0 0 0 0 9493 11253 0 2 97 1 0
1 0 0 3803944 25900 109412 0 0 0 0 9640 11303 0 3 97 0 0
1 0 0 3803880 25900 109412 0 0 0 0 9708 11373 0 5 95 0 0
1 0 0 3803944 25900 109412 0 0 0 0 9824 11603 0 3 97 0 0
2 0 0 3803912 25900 109412 0 0 0 0 9584 11216 1 4 95 0 0
0 0 0 3803076 25904 109416 0 0 8 0 9757 11438 1 1 96 2 0
1 0 0 3803076 25904 109416 0 0 0 0 9741 11548 0 2 98 0 0
1 0 0 3803076 25904 109416 0 0 0 0 9635 11241 0 3 97 0 0
0 0 0 3803076 25904 109416 0 0 0 0 9739 11475 0 3 97 0 0
0 0 0 3803076 25904 109416 0 0 0 0 9786 11563 0 3 97 0 0
1 0 0 3803044 25912 109408 0 0 0 48 9509 11125 0 4 95 1 0
1 0 0 3803076 25912 109416 0 0 0 0 9696 11428 0 3 97 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9434 11053 0 1 99 0 0
0 0 0 3803044 25912 109416 0 0 0 0 9613 11296 0 4 96 0 0
0 0 0 3803044 25912 109416 0 0 0 0 9450 11133 0 4 96 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9661 11377 0 4 96 0 0
0 0 0 3803044 25912 109416 0 0 0 0 9601 11241 0 2 98 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9640 11357 0 2 98 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9682 11393 0 3 97 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9744 11451 1 5 94 1 0
0 0 0 3803076 25912 109416 0 0 0 0 9542 11174 0 3 97 0 0
procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu-----
r b swpd free buff cache si so bi bo in cs us sy id wa st
1 0 0 3803076 25912 109416 0 0 0 0 9659 11393 0 3 97 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9759 11476 0 2 98 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9629 11271 0 3 97 0 0
1 0 0 3803108 25912 109416 0 0 0 0 9710 11420 0 4 96 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9502 11166 1 3 96 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9754 11423 0 3 97 0 0
1 0 0 3803108 25912 109416 0 0 0 0 9849 11575 0 4 96 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9645 11384 0 5 95 0 0
1 0 0 3803108 25912 109416 0 0 0 0 9580 11277 0 2 98 0 0
0 0 0 3803108 25912 109416 0 0 0 0 9282 10918 0 4 96 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9537 11203 0 4 96 0 0
1 0 0 3803108 25912 109416 0 0 0 0 9793 11524 0 3 97 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9838 11556 0 4 96 0 0
1 0 0 3803076 25912 109416 0 0 0 0 9410 11037 1 2 97 0 0
1 0 0 3803108 25912 109416 0 0 0 0 9604 11378 0 2 98 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9603 11305 0 3 97 0 0
0 0 0 3803108 25912 109416 0 0 0 0 9404 11070 0 4 96 0 0
0 0 0 3803076 25912 109416 0 0 0 0 9736 11475 0 3 97 0 0
1 0 0 3803172 25912 109416 0 0 0 0 9672 11279 0 4 96 1 0
0 0 0 3803172 25912 109416 0 0 0 8 9655 11373 0 2 98 0 0
0 0 0 3803172 25912 109416 0 0 0 0 9598 11301 0 4 96 0 0
iotop similarly shows nothing interesting:
Total DISK READ : 0.00 B/s | Total DISK WRITE : 0.00 B/s
Actual DISK READ: 0.00 B/s | Actual DISK WRITE: 0.00 B/s
ProblemType: Bug
DistroRelease: Ubuntu 15.10
Package: linux-image-4.1.0-3-generic 4.1.0-3.3 [modified: boot/vmlinuz-4.1.0-3-generic]
ProcVersionSignature: Ubuntu 4.1.0-3.3-generic 4.1.3
Uname: Linux 4.1.0-3-generic x86_64
ApportVersion: 2.18-0ubuntu7
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/pcmC0D0c: jeremy 2048 F...m pulseaudio
/dev/snd/pcmC0D0p: jeremy 2048 F...m pulseaudio
/dev/snd/controlC0: jeremy 2048 F.... pulseaudio
Date: Thu Aug 27 14:26:33 2015
HibernationDevice: RESUME=UUID=2ede38d6-1e71-41fe-9c70-4e9cb81059f3
InstallationDate: Installed on 2015-08-27 (0 days ago)
InstallationMedia: Ubuntu 15.10 "Wily Werewolf" - Alpha amd64 (20150826)
MachineType: Apple Inc. MacBookPro3,1
ProcEnviron:
TERM=xterm-256color
PATH=(custom, no user)
XDG_RUNTIME_DIR=<set>
LANG=en_US.UTF-8
SHELL=/bin/bash
ProcFB: 0 EFI VGA
ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.1.0-3-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro text
RelatedPackageVersions:
linux-restricted-modules-4.1.0-3-generic N/A
linux-backports-modules-4.1.0-3-generic N/A
linux-firmware 1.147
SourcePackage: linux
UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev'
UpgradeStatus: No upgrade log present (probably fresh install)
dmi.bios.date: 03/05/08
dmi.bios.vendor: Apple Inc.
dmi.bios.version: MBP31.88Z.0070.B07.0803051658
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F4238BC8
dmi.board.vendor: Apple Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag#
dmi.chassis.type: 2
dmi.chassis.vendor: Apple Inc.
dmi.chassis.version: Mac-F4238BC8
dmi.modalias: dmi:bvnAppleInc.:bvrMBP31.88Z.0070.B07.0803051658:bd03/05/08:svnAppleInc.:pnMacBookPro3,1:pvr1.0:rvnAppleInc.:rnMac-F4238BC8:rvrPVT:cvnAppleInc.:ct2:cvrMac-F4238BC8:
dmi.product.name: MacBookPro3,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Inc.
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References
