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Message #12827
[Bug 1222112] Re: coretemp: Errata AE18 not fixed, update BIOS or microcode of the CPU!
Chascon, could you please test the latest upstream kernel available following https://wiki.ubuntu.com/KernelMainlineBuilds ? It will allow additional upstream developers to examine the issue. Please do not test the daily folder, but the one all the way at the bottom. Once you've tested the upstream kernel, please comment on which kernel version specifically you tested. If this bug is fixed in the mainline kernel, please add the following tags:
kernel-fixed-upstream
kernel-fixed-upstream-VERSION-NUMBER
where VERSION-NUMBER is the version number of the kernel you tested. For example:
kernel-fixed-upstream-v3.11
This can be done by clicking on the yellow circle with a black pencil icon next to the word Tags located at the bottom of the bug description. As well, please remove the tag:
needs-upstream-testing
If the mainline kernel does not fix this bug, please add the following tags:
kernel-bug-exists-upstream
kernel-bug-exists-upstream-VERSION-NUMBER
As well, please remove the tag:
needs-upstream-testing
Once testing of the upstream kernel is complete, please mark this bug's
Status as Confirmed. Please let us know your results. Thank you for your
understanding.
** Tags removed: apple macbook pro
** Tags added: needs-bisect needs-upstream-testing regression-release
** Tags added: latest-bios-mbp11.88z.0055.b08.0610121325
** Attachment removed: "version.log"
https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1222112/+attachment/3807318/+files/version.log
** Changed in: linux (Ubuntu)
Status: Confirmed => Incomplete
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https://bugs.launchpad.net/bugs/1222112
Title:
coretemp: Errata AE18 not fixed, update BIOS or microcode of the CPU!
Status in “linux” package in Ubuntu:
Incomplete
Bug description:
Symptoms:
Excessive fan use.
Ran fine with Ubuntu Natty Narwhal, but successive upgrades resulted in both fans running full shortly after bootup (regression). I justified it thinking that Ubuntu had higher requirements, until infrequent failed attempts to boot finally resulted in the on-screen posting of "coretemp: Errata AE18 not fixed, update BIOS or microcode of the CPU!" on Raring.
Now on Saucy, although without any failed boots, I find the same
error by checking dmesg:
dmesg | grep coretemp
[ 47.314949] coretemp: Errata AE18 not fixed, update BIOS or microcode of the CPU!
[ 47.314958] coretemp: Errata AE18 not fixed, update BIOS or microcode of the CPU!
sudo lsmod | grep coretemp outputs coretemp 13195 0
sudo sensors -s gives no output at the moment.
I do have the coretemp listed to be loaded:
cat /etc/modules
# /etc/modules: kernel modules to load at boot time.
#
# This file contains the names of kernel modules that should be loaded
# at boot time, one per line. Lines beginning with "#" are ignored.
lp
#speedstep_centrino # kernel's job now, cpu frequency scaling
#acpi_cpufreq # kernel's job now, cpu frequency scaling
cpufreq_ondemand #responsive, cpu frequency scaling
#cpufreq_conservative # slow, cpu frequency scaling
## Chip drivers , as per lm-sensors, sudo sensors-detect, and Psensor
#coretemp
lm63
## Used by macfanctld from https://launchpad.net/~mactel-support/+archive/ppa
applesmc
coretemp
Comments & observations
I do know Errata is code for defective firmware and that this has been dealt with prior http://lkml.org/lkml/2007/6/16/173 (thus this is a regression) and that I'm not alone:
https://bbs.archlinux.org/viewtopic.php?id=143492
http://ww.ubuntuforums.org/showthread.php?t=814314
Interestingly, http://ubuntuforums.org/showthread.php?t=1239544
mentions in passing " Intel's microcode update", which I find isn't
applicable considering that my fans ran fine on Natty. I find the
other suggestion, "put the following into /etc/rc.local" disconcerting
considering that software is supposed to accommodate defective
microcode and regularly does, but also that half a decade has come and
gone with this issue.
Still, it seems most plausible that the pertinent microcode is not loaded before the coretemp module jumps into action.
---
ApportVersion: 2.12.1-0ubuntu3
Architecture: i386
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC1: mo 3726 F.... pulseaudio
/dev/snd/controlC0: mo 3554 F.... volumeicon
mo 3726 F.... pulseaudio
DistroRelease: Ubuntu 13.10
HibernationDevice: RESUME=UUID=971dcaf3-f640-4d1c-9cb6-ea8eba0cab54
InstallationDate: Installed on 2011-09-05 (733 days ago)
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Release i386 (20110427.1)
MachineType: Apple Computer, Inc. MacBookPro1,1
MarkForUpload: True
Package: linux (not installed)
ProcFB: 0 radeondrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-4-generic root=UUID=9c44e3b1-d6d1-4ca7-a621-c0142ded125a ro quiet splash vt.handoff=7
ProcVersionSignature: Ubuntu 3.11.0-4.9-generic 3.11.0-rc7
RelatedPackageVersions:
linux-restricted-modules-3.11.0-4-generic N/A
linux-backports-modules-3.11.0-4-generic N/A
linux-firmware 1.113
StagingDrivers: zram
Tags: saucy staging
Uname: Linux 3.11.0-4-generic i686
UpgradeStatus: Upgraded to saucy on 2013-09-01 (6 days ago)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
dmi.bios.date: 10/12/06
dmi.bios.vendor: Apple Computer, Inc.
dmi.bios.version: MBP11.88Z.0055.B08.0610121325
dmi.board.asset.tag: Base Board Asset Tag
dmi.board.name: Mac-F425BEC8
dmi.board.vendor: Apple Computer, Inc.
dmi.board.version: PVT
dmi.chassis.asset.tag: Asset Tag
dmi.chassis.type: 8
dmi.chassis.vendor: Apple Computer, Inc.
dmi.chassis.version: Mac-F425BEC8
dmi.modalias: dmi:bvnAppleComputer,Inc.:bvrMBP11.88Z.0055.B08.0610121325:bd10/12/06:svnAppleComputer,Inc.:pnMacBookPro1,1:pvr1.0:rvnAppleComputer,Inc.:rnMac-F425BEC8:rvrPVT:cvnAppleComputer,Inc.:ct8:cvrMac-F425BEC8:
dmi.product.name: MacBookPro1,1
dmi.product.version: 1.0
dmi.sys.vendor: Apple Computer, Inc.
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