random_harvestq eats much on geode-lx alix2c3

[Stanisław Halik]

Hey,

random_harvestq eats much, much CPU on alix2c3:

CPU: Geode(TM) Integrated Processor by AMD PCS (498.06-MHz 586-class CPU)
glxsb0: <AMD Geode LX Security Block (AES-128-CBC, RNG)> mem 
0xefff4000-0xefff7fff irq 9 at device 1.2 on pci0

Could you please add a sysctl/loader knob for it, or a way to throttle 
collection?

Here's top output:

14 root          1 -16    -     0K     8K -        6:12  15.97% rand_harvestq

cheers,
-sh

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