Re: CCREE performance on R-Car H3 + crash

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On Mon, Jul 23, 2018 at 12:55 PM, Geert Uytterhoeven
<geert@xxxxxxxxxxxxxx> wrote:
> Hi Gilad,
>
> CC linux-crypto for the crash log.
>
> On Sun, Jul 22, 2018 at 7:28 AM Gilad Ben-Yossef <gilad@xxxxxxxxxxxxx> wrote:
>> On Thu, Jul 19, 2018 at 3:43 PM, Geert Uytterhoeven
>> <geert@xxxxxxxxxxxxxx> wrote:
>> > I've noticed CCREE is used with a LUKS-formatted disk, so I did some small
...
>
> $ cryptsetup benchmark
> # Tests are approximate using memory only (no storage IO).
> PBKDF2-sha1       478364 iterations per second for 256-bit key
> PBKDF2-sha256     927943 iterations per second for 256-bit key
> PBKDF2-sha512     360583 iterations per second for 256-bit key
> PBKDF2-ripemd160  266677 iterations per second for 256-bit key
> PBKDF2-whirlpool  115787 iterations per second for 256-bit key
> #  Algorithm | Key |  Encryption |  Decryption
>      aes-cbc   128b    46.0 MiB/s    46.7 MiB/s
>  serpent-cbc   128b           N/A           N/A
>  twofish-cbc   128b           N/A           N/A
>      aes-cbc   256b    46.5 MiB/s    46.4 MiB/s
>  serpent-cbc   256b           N/A           N/A
>  twofish-cbc   256b           N/A           N/A
> Segmentation fault
>
> Oops.
>
> ccree e6601000.crypto: Unsupported data size 65536.
> Unable to handle kernel paging request at virtual address ffffffbf5c3c3c20
>

Oy. Thank you for reporting this. I'll take a look at what is going on ASAP.

Gilad

-- 
Gilad Ben-Yossef
Chief Coffee Drinker

values of β will give rise to dom!




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