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Message #17986
[Bug 1222112] Re: coretemp: Errata AE18 not fixed, update BIOS or microcode of the CPU!
** Description changed:
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.
WORKAROUND: add in /etc/rc.local :
modprobe coretemp
+ and install
+ intel-microcode
+
---
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.
--
You received this bug notification because you are a member of Kernel
Packages, which is subscribed to linux in Ubuntu.
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.
WORKAROUND: add in /etc/rc.local :
modprobe coretemp
and install
intel-microcode
---
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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References