Re: kern/56059: speaker(4): system hangs if tone < 100 Hz (_SC_CLK_TCK) is played

[RVP <rvp%SDF.ORG@localhost>]

On Sat, 20 Mar 2021, Tetsuya Isaki wrote:

> A trivial correction for just future reference.
> tones < 100Hz is not related. (98Hz "O0G" worked).

Yes, I noticed that. But, the next one down F# (93Hz) definitely
hung the system--I just assumed it was a due to rounding, somewhere.

> The buffersize was calculated indirectly from the beep's frequency
> and blk_ms.  I omit the details (since it is complicated), but if
> the resulted size becomes less than 32 bytes, then rounding down it
> by 32 bytes caused zero.

Thanks for that explanation: even abbreviated, it is quite clear.

I'll try the fix out when the new images get built. Feel free to
close this PR.

-RVP