Re: sysctl on Pinebook never finishes

[Robert Swindells <rjs%fdy2.co.uk@localhost>]

John Klos <john%ziaspace.com@localhost> wrote:
>Does anyone know why sysctl -a never completes on a Pinebook (not Pro - 
>first gen) running -current from today?
>
>sysctl -a
>...
>hw.drm2.radeon_no_wb = 0
>hw.pwmbacklight0.levels = 0 5 10 15 20 30 40 55 70 85 100
>hw.pwmbacklight0.level = 10
>...
>
>SIGINFO shows:
>[ 124.5394678] load: 0.62  cmd: sysctl 1973 [sun8isy] 0.09u 0.05s 0% 1876k
>
>I see sun8isy has to do with sun8i_crypto, so I wondered if this was a 
>lack of entropy issue. After adding entropy, the kernel emitted:
>
>[ 46451.878690] sun8icrypto0: no free channels
>
>Then, sysctl -a works. PR?

The sysctl that is being read is there for testing, it returns a buffer
containing random numbers.

We probably need to change the API a bit.