Public bug reported:
Since I've updated to Quantal, I notice that if I kick off a long-
running compile on my laptop (eg building a whole kernel), then I often
shutdown with messages like
Jul 27 15:07:25 roland-t410s kernel: [145070.016141] CPU0: Core temperature
above threshold, cpu clock throttled (total events = 30)
Jul 27 15:07:25 roland-t410s kernel: [145070.016142] CPU1: Core temperature
above threshold, cpu clock throttled (total events = 30)
Jul 27 15:07:25 roland-t410s kernel: [145070.018229] CPU1: Core
temperature/speed normal
Jul 27 15:07:25 roland-t410s kernel: [145070.018230] CPU0: Core
temperature/speed normal
...
Jul 27 15:07:32 roland-t410s kernel: [145076.665148] [Hardware Error]: Machine
check events logged
Jul 27 15:07:33 roland-t410s kernel: [145077.521152] thermal_sys: Critical
temperature reached (128 C), shutting down
Jul 27 15:07:33 roland-t410s kernel: [145077.528506] thermal_sys: Critical
temperature reached (128 C), shutting down
in my syslog. I don't remember this happening with Precise so this
seems like a regression in Quantal.
I does seem suspicious that the temperature returns to normal 2
milliseconds after it goes above the threshold, and then hits the
critical temperature 8 seconds later. Perhaps there is a bug in when we
decide to unthrottle?
ProblemType: Bug
DistroRelease: Ubuntu 12.10
Package: linux-image-3.5.0-6-generic 3.5.0-6.6
ProcVersionSignature: Ubuntu 3.5.0-6.6-generic 3.5.0
Uname: Linux 3.5.0-6-generic x86_64
ApportVersion: 2.4-0ubuntu6
Architecture: amd64
AudioDevicesInUse:
USER PID ACCESS COMMAND
/dev/snd/controlC0: roland 2512 F.... pulseaudio
/dev/snd/controlC1: roland 2512 F.... pulseaudio
Date: Fri Jul 27 15:14:36 2012
EcryptfsInUse: Yes
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Alpha amd64 (20120104)
MachineType: LENOVO 2901CTO
ProcFB: 0 inteldrmfb
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.5.0-6-generic
root=UUID=677292b2-a7ba-4d9e-8f1a-662c546b62ce ro intel_iommu=igfx_off splash
quiet
RelatedPackageVersions:
linux-restricted-modules-3.5.0-6-generic N/A
linux-backports-modules-3.5.0-6-generic N/A
linux-firmware 1.87
SourcePackage: linux
UpgradeStatus: Upgraded to quantal on 2012-06-30 (27 days ago)
dmi.bios.date: 12/12/2011
dmi.bios.vendor: LENOVO
dmi.bios.version: 6UET68WW (1.48 )
dmi.board.name: 2901CTO
dmi.board.vendor: LENOVO
dmi.board.version: Not Available
dmi.chassis.asset.tag: No Asset Information
dmi.chassis.type: 10
dmi.chassis.vendor: LENOVO
dmi.chassis.version: Not Available
dmi.modalias:
dmi:bvnLENOVO:bvr6UET68WW(1.48):bd12/12/2011:svnLENOVO:pn2901CTO:pvrThinkPadT410s:rvnLENOVO:rn2901CTO:rvrNotAvailable:cvnLENOVO:ct10:cvrNotAvailable:
dmi.product.name: 2901CTO
dmi.product.version: ThinkPad T410s
dmi.sys.vendor: LENOVO
** Affects: linux (Ubuntu)
Importance: Undecided
Status: New
** Tags: amd64 apport-bug quantal running-unity
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https://bugs.launchpad.net/bugs/1030156
Title:
long-running compile leads to laptop overheat & shutdown
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