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Date: Tue, 20 May 2014 08:30:04 +0530
From: Sayantan Datta <>
Subject: Re: memory issues: john is eating it all

On Tue, May 20, 2014 at 3:21 AM, Solar Designer <> wrote:

> Yes, descrypt-opencl appears to be leaking memory.  In the recent
> contest, I was running "--format=descrypt-opencl --fork=4" on a 7970
> (the --fork=4 results in much greater performance at this format, since
> otherwise the GPU would stay mostly idle waiting for data from host).
> This consumed about 6 GB of RAM (about 1.5 GB per forked process) in
> about 10 hours.  I was going to report it to Sayantan on john-dev, but
> you were quicker to bring the same issue up.

I'll look into it ASAP.


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