[Bug 628163] [NEW] repeated intel ips CPU/MCP power or thermal limit exceeded messages

[Mathieu Trudel]

Public bug reported:

I've noticed spamming from the kernel in /var/log/syslog regarding
exceeding the CPU and MCP thermal or power limits:

Sep  1 11:36:28 demeter kernel: [98490.237702] intel ips 0000:00:1f.6: MCP power or thermal limit exceeded
Sep  1 11:36:33 demeter kernel: [98495.244545] intel ips 0000:00:1f.6: MCP power or thermal limit exceeded
Sep  1 11:36:38 demeter kernel: [98500.231526] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded
Sep  1 11:36:43 demeter kernel: [98505.228451] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded
Sep  1 11:36:48 demeter kernel: [98510.225343] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded
Sep  1 11:36:53 demeter kernel: [98515.222314] intel ips 0000:00:1f.6: MCP power or thermal limit exceeded
Sep  1 11:36:58 demeter kernel: [98520.219208] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded
Sep  1 11:37:03 demeter kernel: [98525.216174] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded
Sep  1 11:37:08 demeter kernel: [98530.213086] intel ips 0000:00:1f.6: MCP power or thermal limit exceeded
Sep  1 11:37:13 demeter kernel: [98535.210010] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded
Sep  1 11:37:18 demeter kernel: [98540.212247] intel ips 0000:00:1f.6: CPU power or thermal limit exceeded

I get one message every few seconds. There seems to be no other effect,
as my system appears to be running at a reasonable temperature (isn't
hot to the touch), and doesn't crash or hang. Perhaps the only thing is
that battery seems to run out fairly fast, though I can't provably say
there is any relation between the two issues :)

In any case, sensors report the following:

mtrudel at demeter ~log % sensors
acpitz-virtual-0
Adapter: Virtual device
temp1:       +53.0°C  (crit = +100.0°C)                  
temp2:       +36.0°C  (crit = +96.0°C)

ProblemType: Bug
DistroRelease: Ubuntu 10.10
Package: linux-image-2.6.35-19-generic 2.6.35-19.28
Regression: No
Reproducible: Yes
ProcVersionSignature: Ubuntu 2.6.35-19.28-generic 2.6.35.3
Uname: Linux 2.6.35-19-generic x86_64
AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.23.
Architecture: amd64
AudioDevicesInUse:
 USER        PID ACCESS COMMAND
 /dev/snd/controlC1:  mtrudel    2250 F.... pulseaudio
 /dev/snd/controlC0:  mtrudel    2250 F.... pulseaudio
CRDA: Error: [Errno 2] Aucun fichier ou dossier de ce type
Card0.Amixer.info:
 Card hw:0 'Intel'/'HDA Intel at 0xf0800000 irq 44'
   Mixer name	: 'Intel IbexPeak HDMI'
   Components	: 'HDA:10ec0272,1025033e,00100001 HDA:11c11040,11c10001,00100200 HDA:80862804,80860101,00100000'
   Controls      : 36
   Simple ctrls  : 18
Card1.Amixer.info:
 Card hw:1 'Headset'/'Logitech Logitech USB Headset at usb-0000:00:1a.0-1.2, full speed'
   Mixer name	: 'USB Mixer'
   Components	: 'USB046d:0a0b'
   Controls      : 6
   Simple ctrls  : 2
Date: Wed Sep  1 11:30:06 2010
EcryptfsInUse: Yes
HibernationDevice: RESUME=UUID=6a7464cd-233b-46e1-8386-f3b9f822b474
InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Alpha amd64 (20100827)
MachineType: Acer Aspire 5740
ProcCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.35-19-generic root=UUID=210fca57-ec8c-4f88-ba10-7561b2a522c6 ro quiet splash
ProcEnviron:
 LANG=fr_CA.UTF-8
 SHELL=/bin/zsh
RelatedPackageVersions: linux-firmware 1.38
RfKill:
 0: phy0: Wireless LAN
 	Soft blocked: no
 	Hard blocked: no
SourcePackage: linux
dmi.bios.date: 11/26/2009
dmi.bios.vendor: Phoenix Technologies LTD
dmi.bios.version: V1.09
dmi.board.name: Aspire 5740
dmi.board.vendor: Acer
dmi.board.version: Rev
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: Acer
dmi.chassis.version: Rev
dmi.modalias: dmi:bvnPhoenixTechnologiesLTD:bvrV1.09:bd11/26/2009:svnAcer:pnAspire5740:pvrRev:rvnAcer:rnAspire5740:rvrRev:cvnAcer:ct10:cvrRev:
dmi.product.name: Aspire 5740
dmi.product.version: Rev
dmi.sys.vendor: Acer

** Affects: linux (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug kernel-uncat maverick needs-upstream-testing

-- 
repeated intel ips CPU/MCP power or thermal limit exceeded messages
https://bugs.launchpad.net/bugs/628163
You received this bug notification because you are a member of Kernel
Bugs, which is subscribed to linux in ubuntu.