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Date: Thu, 13 Jun 2019 23:15:35 +0200
From: magnum <>
Subject: Re: Unable to use OpenCL on arm64v8/debian stretch

On 2019-06-13 22:06, Solar Designer wrote:
>> On 2019-06-13 15:08, wrote:
>>> When I run, as in README-OPENCL,
>>> ../run/john --test --format=wpapsk-opencl
>>>       I see
>>> Device 0@...i: Mali-T860
>>> Benchmarking: wpapsk-opencl, WPA/WPA2/PMF/PMKID PSK [PBKDF2-SHA1
>>> OpenCL]... OpenCL CL_INVALID_PROGRAM_EXECUTABLE (-45) error in
>>> opencl_wpapsk_fmt_plug.c:262 - Error creating kernel
>>>      What does the error mean and what can I do to eliminate it?
> On Thu, Jun 13, 2019 at 08:30:38PM +0200, magnum wrote:
>> Before we even start to think about that, you need to upgrade to latest
>> release, which is 1.9.0-jumbo-1. If you still have problems after that,
>> please repost.
> magnum, I see no reason to think the above wasn't already with
> 1.9.0-jumbo-1.  In fact, the mention of "ASIMD" suggests it was with a
> revision very close to 1.9.0-jumbo-1 even if not the release exactly.
> (We sort of mistakenly reported Aarch64's SIMD as NEON before.)

Well the *output* says "Device 0" so it's some time before the released 
version.  I didn't notice the "ASIMD" though, so I thought it could be 
much older - but anyway let's change to the released version and we'll 
know exactly what is running.

Because it does get weirder, hang on:  We switched to 1-based device 
numbers at February 26 and to ASIMD at April 8.  So that means this 
build is... *what*?!  Older than Feb 26 *and* newer than April 8?  Is 
this some custom backport mix?  A rebuild without "make clean"?  I have 
no idea so I'm not keen on discussing the issue until I do.  The easy 
way to get there:  Install the very release, build from scratch and 
re-test.  Then I'll be all ears - then I'll also be able to tell what's 
in line 262 of opencl_wpapsk_fmt_plug.c for sure.


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