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Date: Tue, 19 Jun 2012 20:16:14 +0530
From: SAYANTAN DATTA <std2048@...il.com>
To: john-dev@...ts.openwall.com
Subject: Re: bf-opencl
On Tue, Jun 19, 2012 at 6:19 AM, Solar Designer <solar@...nwall.com> wrote:
> On Tue, Jun 19, 2012 at 04:25:21AM +0400, Solar Designer wrote:
> > ...Oh, I got "ASIC hang" after:
> >
> > guesses: 345 time: 0:00:03:28 0.00% c/s: 5449 trying: 123456 - random
> >
> > Whatever. I'll bring it back to stock clocks (925 MHz core).
> >
> > BTW, 1300 MHz resulted in John's self-test failure, and 1250 MHz worked
> > for 3.5 minutes as you can see. I don't know if the "ASIC hang" was
> > related to the overclock or not.
>
> This is unclear. I tried running the same test at stock clocks, and it
> worked fine for about 15 minutes:
>
> guesses: 1199 time: 0:00:14:26 28.25% (ETA: Tue Jun 19 05:17:59 2012)
> c/s: 4111 trying: rangers - 222222
>
> but then the entire machine locked up (stopped responding to ping) and
> rebooted, maybe due to:
>
> kernel.panic = 20
> kernel.panic_on_oops = 1
>
What does the above two panic parameter mean?
> kernel.softlockup_panic = 1
> kernel.hung_task_panic = 1
> kernel.hung_task_timeout_secs = 300
>
> It was probably not the hung_task_panic, but it could have been an Oops.
>
> There's nothing about this in the logs.
>
> So maybe bf-opencl still triggers problems with the AMD driver for 7970.
>
> Alexander
>
Hi Alexander,
I think 12.4 is the first official driver for 7970. So I guess we should
wait for a driver update(12.6 beta is available). BTW Can I OC the card
using ssh?
BTW currently I'm working on a version that could make some use of global
memory along with the LDS. If it is comes out any faster then I'll post it .
Although I can run two instances of john , one on global memory and one on
LDS but the net results aren't very good. So I would try comibine them
under same kernel.
Regards,
Sayantan
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