[ WORKAROUND ] add intel_pstate=disable to boot cmdline:
$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-3.19.0-26-generic.efi.signed
root=UUID=5ab2d1c9-0f00-470c-9292-58387a5cd983 ro quiet
intel_pstate=disable
Also affecting current generation systems using Ubuntu 15.04:
BIOS Information
Vendor: Dell Inc.
Version: A08
Release Date: 06/08/2015
System Information
Manufacturer: Dell Inc.
Product Name: Inspiron 3646
Base Board Information
Manufacturer: Dell Inc.
Product Name: 0V6D8J
Version: A00
Processor Information
Family: Atom
Version: Intel(R) Pentium(R) CPU J2900 @ 2.41GHz
Max Speed: 2656 MHz
Current Speed: 2426 MHz
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https://bugs.launchpad.net/bugs/1451085
Title:
Ivy Bridge laptop overheats with intel_pstate enabled
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