[Pkg-opencl-devel] Bug#769403: beignet: unhelpful error on trying to call nonexistent OpenCL kernel function

[Zhigang Gong]

You are right, it's still in upstream master branch.  Will fix it soon.  Thanks.

On Thu, Nov 13, 2014 at 8:37 PM, Rebecca N. Palmer
<rebecca_palmer at zoho.com> wrote:
> Package: beignet
> Version: 0.9.3~dfsg-2
> (That version is only in Alioth as yet, but as I haven't touched anything
> related to this, I suspect the problem is upstream)
>
> If an OpenCL kernel attempts to call a non-existent function (e.g.
> "b[i]=cossss(a[i])", as in the attached), pocl returns a helpful "undefined
> symbol: cossss" error message, but beignet simply crashes with "Segmentation
> fault".
>
> gdb backtrace:
>
> #0  0x00007ffff26b7eb1 in llvm::Function::getIntrinsicID() const ()
>    from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #1  0x00007ffff18419e2 in ?? () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #2  0x00007ffff2702c07 in
> llvm::FPPassManager::runOnFunction(llvm::Function&)
>     () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #3  0x00007ffff250b433 in ?? () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #4  0x00007ffff2705649 in llvm::legacy::PassManagerImpl::run(llvm::Module&)
> ()
>    from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #5  0x00007ffff18446a9 in ?? () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #6  0x00007ffff17eeb02 in ?? () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #7  0x00007ffff18a5f10 in ?? () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #8  0x00007ffff17f325b in ?? () from /usr/lib/beignet//libgbe.so
> No symbol table info available.
> #9  0x00007ffff5a0386d in ?? () from /usr/lib/beignet/libcl.so
> No symbol table info available.
> ---Type <return> to continue, or q <return> to quit---
> #10 0x00007ffff59fbdf5 in clBuildProgram () from /usr/lib/beignet/libcl.so
> No symbol table info available.
>