Am Mittwoch, 8. Februar 2017, 17:57:23 CET schrieb Linus Torvalds:
Hi Linus,
> Stephan, Herbert? The zeroes in /dev/hwrng output are obviously
> complete crap, so there's something badly wrong somewhere.
>
> The locking, for example, is completely buggered. There's even a
> comment about it, but
Stephan, Herbert? The zeroes in /dev/hwrng output are obviously
complete crap, so there's something badly wrong somewhere.
The locking, for example, is completely buggered. There's even a
comment about it, but that comment makes the correct observation of
"but y'know: randomness". But the memset()
This reverts commit 2cc751545854d7bd7eedf4d7e377bb52e176cd07.
With this commit in place I get on a Cavium ThunderX (arm64) system:
$ if=/dev/hwrng bs=256 count=1 | od -t x1 -A x -v > rng-bad.txt
1+0 records in
1+0 records out
256 bytes (256 B) copied, 9.1171e-05 s, 2.8 MB/s
$ dd if=/dev/hwrng bs=
