Created attachment 140029 [details] example of using glDrawElements The program "test" (see the attachment) crashes with this error: [login3]$ export LD_LIBRARY_PATH=$LD_LIBRARY_PATH:${PWD}/install/mesa1811/lib [login3]$ export GALLIUM_DRIVER=swr [login3]$ ml LLVM/4.0.0-GCC-6.3.0-2.27 #or "ml LLVM/5.0.0-GCC-6.3.0-2.27" [login3]$ g++ hellogl.cpp -o test -lglut -lGL ; ./test SWR detected AVX2 instruction support (using: libswrAVX2.so). test: /apps/easybuild/build/LLVM/4.0.0/GCC-6.3.0-2.27/llvm-4.0.0.src/lib/IR/Instructions.cpp:2592: static llvm::CastInst* llvm::CastInst::Create(llvm::Instruction::CastOps, llvm::Value*, llvm::Type*, const llvm::Twine&, llvm::Instruction*): Assertion `castIsValid(op, S, Ty) && "Invalid cast!"' failed. Aborted (core dumped) Thank you for your help. Milan
Resolved over email. I wasn't able to replicate the error, but Milan was able to get up and running with recompiled versions of Mesa and LLVM. It was mentioned that an OpenGL context crash was occurring occasionally with SWR. @Milan if you are unable to track down what's causing that crash, please feel free to open up a new bug and let me know.
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