(In reply to Sebastian Parschauer from comment #10) > 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. Hmm. This sounds unrelated to this bugreport ...