Hi,
thanks for all your hints. I have done more experiments over the weekend,
and I managed to observe
core dumps also with the Intel OpenCL driver if I compile the kernel with
debug information ('-g' as option
in the kernel build). So it seems to be an issue not just related to pocl
and I need to do some further debugging to see
what is going on.
Best wishes
Timo
On Sun, 3 Jun 2018 at 18:55, Michal Babej <[email protected]>
wrote:
> Hi,
>
> > I am a bit at a loss right now. Does anybody have any other ideas? It
> > would be good to be able to run the kernel
> > with full debug symbols so that valgrind or gdb can give some more
>
> Pocl currently compiles the kernels without debuginfo, and while adding
> a debug option is quite easy, Pocl does a lot of transformation on the
> compiled bitcode, so making sure the debuginfo still makes sense after
> all transforms, could be quite a bit of work.
>
> Can you try disassembling the kernel crash ? gdb commands are
> "set disassembly-flavor intel" and "disassemble". Find the instruction
> that's crashing (has a "=>" next to it) and print the contents of
> registers ("info registers"). Then pastebin the all this somewhere.
>
> Regards,
> -- mb
>
>
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--
Dr Timo Betcke
Reader in Mathematics
University College London
Department of Mathematics
E-Mail: [email protected]
Tel.: +44 (0) 20-3108-4068
Fax.: +44 (0) 20-7383-5519
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