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torch / cutorch

A CUDA backend for Torch7
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Segmentation fault (core dumped) when I run 'cutorch.synchronizeAll()' #827

Closed zerchen closed 6 years ago

zerchen commented 6 years ago

The environment is ubuntu16.04, CUDA 8, cudnn 6, GPU is Nvidia Tesla P100 I run the torch in nvidia docker container. However, when I run 'require cudnn ‘ or 'cutorch.synchronizeAll()' , it returns 'Segmentation fault (core dumped)' I analyze it with the help of gdb and the output is:

th> require 'cutorch' [New Thread 0x7ffe4c232700 (LWP 160)] th> cutorch.synchronizeAll() [New Thread 0x7ffe48231700 (LWP 161)] [New Thread 0x7ffe3ffff700 (LWP 162)]

Thread 67 "luajit" received signal SIGSEGV, Segmentation fault. [Switching to Thread 0x7ffe3ffff700 (LWP 162)] 0x00007ffe525868df in ?? () from /usr/local/nvidia/lib64/libcuda.so.1 (gdb) bt

0 0x00007ffe525868df in ?? () from /usr/local/nvidia/lib64/libcuda.so.1

1 0x00007ffe526e1014 in ?? () from /usr/local/nvidia/lib64/libcuda.so.1

2 0x00007ffe5267a468 in ?? () from /usr/local/nvidia/lib64/libcuda.so.1

3 0x00007ffff746e6ba in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0

4 0x00007ffff6f8e82d in clone () from /lib/x86_64-linux-gnu/libc.so.6