CUDA 1.1 Profiler Bug invalid entry in config file == crash.

Accelerated Computing CUDA CUDA Programming and Performance
1

Synopsis: Invalid entry in a Profiler Configuration File causes the application to crash with a double free in a linked list.
OS: Linux – RHEL5
CUDA toolkit release version: NVIDIA_CUDA_Toolkit_1.1_rhel5_x86_64.run
SDK release version: NVIDIA_CUDA_SDK_1.1_Linux.run
Driver version: NVIDIA-Linux-x86_64-169.04-pkg2.run
Compiler: gcc version 4.1.2 (Gentoo 4.1.2) & nvcc from 1.1 (V0.2.1221, built Fri_Nov_30_01:55:35_PST_2007)
System description: Dell Precision 390; Intel Core 2 Extremem QX6700 2.66GHz; 2GB RAM; GeForce 8800 GTX

Detailed description:
Invalid entry in a Profiler Configuration File causes the application to crash with a double free in a linked list.

Steps to reproduce:
$ echo x > ~/bad_cfg
$ export CUDA_PROFILE=1
$ export CUDA_PROFILE_CONFIG=~/bad_cfg
$ ~/NVIDIA_CUDA_SDK/bin/linux/release/matrixMul

Actual results: Program crashes with the stack dump due to double free. See attached files crash.txt for full text.
[attachment=4901:attachment]

Expected results: Generated cuda_profile.log to contain an error message saying “Unknown option ‘x’ in profiler config: ~/bad_cfg” similar to the error you get when you specify an profiler configuration file that does not exist.
crash.txt (10.3 KB)

2

I’m able to replicate this with the 1.1 release. However, it no longer reproduces when using the latest internal development build. Instead, I see the following in the profiler log:

Error in profiler config file: /root/bad_cfg
Invalid profiler config option: x

So this should be resolved in the next release.

thanks,
Lonni

3

Sounds good to me. Thanks Lonni.