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Date: Thu, 16 May 2013 10:39:55 +0100
From: Stephen de Mora <stephen@...ora.co.uk>
To: john-dev@...ts.openwall.com
Subject: Re: Parallella: OpenCL
Hi Rafael,
I hope you don't mind I took a look around your home directory to
reproduce the error.
I'm not actually getting the Segmentation fault that you encountered
however I do get the other two errors (like you said even while running
under sudo).
Reading on the forums it appears they have changed a lot between SDK
releases - I'm also finding this information a little hard to diagnose
and what's in the example code and written in the SDK documentation
might not be correct for the version of the SDK installed on the
prototype board.
Here is a post suggesting that reverting to an older SDK could solve the
OpenCL issues:
http://forums.parallella.org/viewtopic.php?f=18&t=248#p1450
Running an ldd on the library gives the following output:
ldd /usr/local/browndeer/lib/libcoprthr-e.so
libelf.so.0 => /usr/lib/libelf.so.0 (0xb6e98000)
libe-loader.so.1 => not found
libe-host.so.1 => not found
libpthread.so.0 => /lib/arm-linux-gnueabi/libpthread.so.0 (0xb6e83000)
libdl.so.2 => /lib/arm-linux-gnueabi/libdl.so.2 (0xb6e78000)
libe_platform.so => /usr/local/browndeer/lib/libe_platform.so
(0xb6e6e000)
libc.so.6 => /lib/arm-linux-gnueabi/libc.so.6 (0xb6d8c000)
/lib/ld-linux.so.3 (0xb6ef8000)
Hence looks like some missing dependencies - However I believe I've seen
those two not found libraries while traversing directories - so could
simply be a missing path.
I think looking at your issue is kind of making my issue I was having
with the SDK make a little bit more sense.
Stephen
> Rafael Waldo Delgado Doblas <mailto:lord.rafa@...il.com>
> 16 May 2013 00:22
> Hello,
>
> I'm Rafael, the student from GSoC, today I added a arm32-opencl option
> to the make file. In order to be able to compile it, I had to remove
> "opencl_pwsafe_fmt" because if not it returns this linker error:
>
> opencl_pwsafe_fmt.o: In function `get_salt':
> opencl_pwsafe_fmt.c:(.text+0x432): undefined reference to
> `alter_endianity'
>
>
> Now I have an executable of JtR but when I try to execute (as super
> user) with the --test parameter, it returns the next error:
>
> root@...allella-16:~/john-1.7.9-jumbo-7/src# ../run/john --test
> [25320] clmesg CRITICAL: libocl.c(849): Linux mmap does not support
> MAP_NOSYNC, demand a work-around
> _libocl_clproc_state 0xb6fcc000
> [25320] clmesg WARNING: libocl.c(149): cannot read ocl.conf, using ICD
> fallback (/etc/OpenCL/vendors
> Segmentation fault
>
> It looks kind of similar to other error that I got in this example
> http://forums.parallella.org/viewtopic.php?f=18&t=42
> <http://forums.parallella.org/viewtopic.php?f=18&t=42>
>
> ./out
> [24603] clmesg CRITICAL: libocl.c(849): Linux mmap does not support
> MAP_NOSYNC, demand a work-around
> _libocl_clproc_state 0xb6f6b000
> [24603] clmesg WARNING: libocl.c(149): cannot read ocl.conf, using ICD
> fallback (/etc/OpenCL/vendors
> coprthr-1.5.0-RC1 (Marathon)
> [24603] clmesg info: cmdsched.c(88): cmdqx0: run
> [24603] clmesg info: cmdsched.c(88): cmdqx0: run
>
> Plotting from (-2.206667, -1.280000) to (1.206667, 1.280000)
> [24603] clmesg WARNING: ../coprthr-common/ocl_program.c(215):
> clBuildProgram: warning: unsupported
> [24603] clmesg WARNING: ../coprthr-common/ocl_program.c(275):
> clBuildProgram failed with err -11
> Segmentation fault
>
> I'm awaiting for help in the forum, I suppose that this is a problem
> with the opencl sdk (libocl) and hopefully the same fix that solve the
> problem with the example would sove the problem with JtR.
>
> What I must to do now?.
>
> Best regards,
> Rafa.
>
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