# Re: \[PATCH RFC v4 1/1\] random: WARN on large getrandom() waits and introduce getrandom2()

- From: Matthew Garrett \<mjg59@srcf.ucam.org\>
- Date: 2019-09-20 20:34:55 
- List: linux-api
- Page: https://ratatoskr.run/linux-api/2019/09/5722842
- Thread: https://ratatoskr.run/linux-ext4/2019/09/5713486/t/3.md

```text
On Fri, Sep 20, 2019 at 12:51:12PM -0700, Linus Torvalds wrote:

> So we absolutely _will_ come up with some way 0 ends the wait. Whether
> it's _just_ a timeout, or whether it's jitter-entropy or whatever, it
> will happen.

FWIW, Zircon uses the jitter entropy generator to seed the CRNG and 
documented their findings in 
https://fuchsia.dev/fuchsia-src/zircon/jitterentropy/config-basic .
-- 
Matthew Garrett | mjg59@srcf.ucam.org
```