Re: testers wanted -- hardware RNG driver patches

[Nick Hudson <skrll%netbsd.org@localhost>]

On 12/16/16 23:24, Taylor R Campbell wrote:
> I've been sitting for a while on the attached patches to simplify
> various ARM hardware RNG device drivers, following some simplification
> in the kernel's hardware RNG API, but I lack hardware and time to test
> them.
>
> - am335x_rng.patch is for Beaglebone and other TI Sitara AM335x systems.
> - bcm2835_rng.patch is for Raspberry Pi.
> - tegra_rng.patch is for NVIDIA Tegra boards.
> - amlogic_rng.patch is for some other ARM platform I can't keep straight.
>
> Would anyone like to give them a spin?  Just make sure the system
> boots, you can read from /dev/random, `rndctl -l' lists some bits from
> the hardware RNG device, and the kernel doesn't spew errors about
> rngtest failures.

rpi (bcm2835) and beaglebone (am335x) were fine, but with tegra I get


jetsontk1# dd if=/dev/random of=/tmp/out count=1024
Kernel RNG "819 3 0" long run test FAILURE: Run of 27 1s found
cprng 819 3 0: failed statistical RNG test
Kernel RNG "819 3 0" long run test FAILURE: Run of 26 0s found
cprng 819 3 0: failed statistical RNG test
0+1024 records in
32+0 records out
16384 bytes transferred in 0.388 secs (42226 bytes/sec)
jetsontk1#

Nick