Re: [PATCH] /dev/random: Insufficient of entropy on many architectures

From: Geert Uytterhoeven
Date: Tue Sep 10 2013 - 07:46:56 EST


On Tue, Sep 10, 2013 at 1:31 PM, Stephan Mueller <smueller@xxxxxxxxxx> wrote:
> /dev/random uses the get_cycles() function to obtain entropy in addition to jiffies and the event value of hardware events.
>
> Typically the high-resolution timer of get_cycles delivers the majority of entropy, because the event value is quite deterministic and jiffies are very coarse.
>
> However, on the following architectures, get_cycles will return 0:

> - M68K

Thanks, m68k is being worked on, cfr. https://lkml.org/lkml/2013/9/9/441

Gr{oetje,eeting}s,

Geert

--
Geert Uytterhoeven -- There's lots of Linux beyond ia32 -- geert@xxxxxxxxxxxxxx

In personal conversations with technical people, I call myself a hacker. But
when I'm talking to journalists I just say "programmer" or something like that.
-- Linus Torvalds
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