Stack traces are not using host symbols:
========= CUDA-MEMCHECK ========= Program hit cudaErrorIllegalAddress (error 77) due to "an illegal memory access was encountered" on CUDA API call to cudaEventElapsedTime. ========= Saved host backtrace up to driver entry point at error ========= Host Frame:/usr/lib64/nvidia/libcuda.so.1 [0x3110a3] ========= Host Frame:/usr/local/cuda-9.1/targets/x86_64-linux/lib/libcudart.so.9.1 (cudaEventElapsedTime + 0x1e1) [0x447c1] ========= Host Frame:/home/blah-blah-blah/my-executable [0xb7884] ========= Host Frame:/home/blah-blah-blah/my-executable [0x10875b] ========= Host Frame:/lib64/libpthread.so.0 [0x7e25] ========= Host Frame:/lib64/libc.so.6 (clone + 0x6d) [0xf834d]
host compiler is gcc 4.8 with -g
cross-compiler is g++ 4.8 with -g
nvcc is 9.1.85 with -g -O0 -G
(CentOS 7, cuda 9.1.85)
Launching memcheck with
cuda-memcheck --log-file cudagrind.log --tool memcheck my-executable args
I tried adding –show-backtrace yes, in case it wasn’t defaulting properly, but there was no change.
Is there an additional step or argument needed?