Bug 189711

Summary: Cpu throttles a lot on dell e7470
Product: Platform Specific/Hardware Reporter: Tomáš Chvátal (tomas.chvatal)
Component: x86-64Assignee: platform_x86_64 (platform_x86_64)
Status: NEW ---    
Severity: normal CC: tiwai
Priority: P1    
Hardware: All   
OS: Linux   
Kernel Version: 4.9-rc7 Subsystem:
Regression: No Bisected commit-id:

Description Tomáš Chvátal 2016-12-05 14:06:27 UTC 
[39814.739914] mei_wdt mei::05b79a6f-4628-4d7f-899d-a91514cb32ab:02: Could not register event ret=-22
[39814.741816] mei_wdt: probe of mei::05b79a6f-4628-4d7f-899d-a91514cb32ab:02 failed with error -22
[39867.021572] CPU3: Core temperature above threshold, cpu clock throttled (total events = 1355)
[39867.021573] CPU1: Core temperature above threshold, cpu clock throttled (total events = 1355)
[39867.021574] CPU0: Package temperature above threshold, cpu clock throttled (total events = 1355)
[39867.021575] CPU2: Package temperature above threshold, cpu clock throttled (total events = 1355)
[39867.021576] CPU1: Package temperature above threshold, cpu clock throttled (total events = 1355)
[39867.021580] mce_notify_irq: 1 callbacks suppressed
[39867.021581] mce: [Hardware Error]: Machine check events logged
[39867.021583] CPU3: Package temperature above threshold, cpu clock throttled (total events = 1355)
[39867.021585] mce: [Hardware Error]: Machine check events logged
[39867.022565] CPU1: Core temperature/speed normal
[39867.022566] CPU3: Core temperature/speed normal
[39867.022567] CPU0: Package temperature/speed normal
[39867.022567] CPU2: Package temperature/speed normal
[39867.022568] CPU3: Package temperature/speed normal
[39867.022569] CPU1: Package temperature/speed normal

This happens with normal usage on desktop, ie browsing news site and nothing else going on the computer.

Verified this behaviour on 4.8.11 and 4.4.35 kernels.

Downstream bugreport: https://bugzilla.suse.com/show_bug.cgi?id=1013563