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Date: Thu, 26 Jun 2014 06:04:32 +0400
From: Solar Designer <>
Subject: Re: Question about GPU and CPU.

On Wed, Jun 25, 2014 at 08:00:45PM -0500, Richard Miles wrote:
> My machine was damaged and I got the opportunity to buy new parts,
> including a new processor and a new GPU (r9 290x). I see some strange
> behavior, can you help me?

It's unclear from your message what problems you're experiencing when
trying to use JtR with that GPU.  Does it work?  If not, what happens
when you do what exactly?  Why did you start playing with the clocks and
fan speed already (perhaps for your use case you should not)?

> Adapter 0: AMD Radeon R9 200 Series
> R9 200? It's not my system, mine is R9 290X.

It says "R9 200 Series", not an exact GPU type.  For a 7970 or a 7990,
it would similarly say "HD 7900 Series".  No problem here.

> If I use od6config --adapter=0 --autofix the sound of the GPU cooler is a
> real PAIN! LOL! Is it normal?

Yes.  You get what you ask for.  Why do you want that?


    Sets minclock equal to maxclock, and PowerTune, fan speed, and
    target temperature all to their maximum default values."

> 2) My old computer was very slow, now with a new with 8 cores I had the
> chances to test some cool features such as fork.
> I tried it with a hash file with 10 entries that are md5crypt and
> sha512crypt (almost 3 md5sum and the rest sha512crypt). I tried it with a
> dict, like this:
> john --wordlist /test.txt --rules test-md5crypt-sha512crypt.hs
> --format=md5crypt
> Loaded 118 password hashes with 110 different salts (md5crypt, crypt(3) $1$
> [MD5 128/128 SSE2 12x])
> Press 'q' or Ctrl-C to abort, almost any other key for status
> 123456           (?)
> 123456           (?)
> shadow           (?)
> biteme           (?)
> charles          (?)
> 5g 0:00:00:00 0.63% (ETA: 58:26:42) 2.211g/s 92.8p/s 43012c/s 8646C/s
> julian..morgan
> valerie          (?)
> asdfasdf         (?)
> asdf1234         (?)
> fashion          (?)
> class            (?)
> bullets          (?)
> welcome1         (?)
> ashley2          (?)
> 13g 0:00:08:02 DONE (2014-06-24 18:44) 0.02696g/s 325.3p/s 32316c/s
> 34272C/s Alling..Sssing
> Use the "--show" option to display all of the cracked passwords reliably
> Session completed
> There are many things:
> A) Why is it loading 118 password hashes while I only have 10? Also, it
> worked on my previous box. Weird, not?

I'm pretty sure you actually have 118 md5crypt hashes in there.

> B) When I type "enter" the progress bar is not displayed anymore. Is there
> a way to reactive it?

It should be working.  In fact, how did you obtain that status line at
"5g 0:00:00:00 0.63%" if not by a keypress?

> C) Can I use it with --fork even with a wordlist?


> D) What are all this passwod entries followed by (?) ?

This means there are no usernames corresponding to those hashes in your
test-md5crypt-sha512crypt.hs file.


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