Comment # 9 on bug 984955 from Michael from Offenbach Germany

Sebastian Parschauer added a comment to another bug (Bug 971695), same
symptoms. where I started to describe my problems first, before being advised
to open up this new bug:

(In reply to Sebastian Parschauer from comment #23)
> Some Intel Haswell CPUs are known to have issues with the package C-State
> PC6 which temporarily disables PCIe, USB, memory controllers - i.e.
> everything what Intel calls the "uncore".
> Please try the kernel boot parameter "intel_idle.max_cstate=1" and check if
> the system becomes stable this way.

My system is a small ZBOX nano with an Atom Celeron (N2930,
http://ark.intel.com/de/products/81073/Intel-Celeron-Processor-N2930-2M-Cache-up-to-2_16-GHz),
as far as I know these CPUs are "Bay Trail", not "Haswell".

Currently I'm working with kernel 4.1.26-1.g8a776b0-default, as advised by
Oliver Neukum. No freezes since then, seems to be stable now/again.