Someone needs to debug this on the platform in question. Is there a way to get access to this hardware, or could you try a debug build? There was no stack trace or hint as to which instruction failed?

@mattip Thanks for responding so quickly!

Is there a way to get access to this hardware, or could you try a debug build?

I'm afraid I only have this one device and can't open it up for anyone else. Is there a fast way to install a debug build?

There was no stack trace or hint as to which instruction failed?

No. I could provide a coredump, though, in case that helps?

If you could generate a core dump, I wonder if you could take one step further by examining the traceback in gdb? Even if it's not a debug build, experienced NumPy developers (not me!) could probably still guess the source of failure.

IIRC, there have been other reports on Jetson.

@charris I just searched for other issues again and, this time, also included closed tickets. I suppose you're referring to #18131 ? It seems to be exactly the same issue that I am having but I can't tell which Numpy release includes the fix – in any case, I suppose I'll have to upgrade Numpy v1.20.x to get it?

Reproducing code example:

I installed Numpy through pip3 install --user numpy==1.19.5 on an ARM64 device (Nvidia Jetson Nano) running Ubuntu 20.04 and cannot import it in Python. Interestingly, Numpy 1.16.1 and 1.19.4 work.

Error message:

$ python3
Python 3.6.9 (default, Oct  8 2020, 12:12:24) 
[GCC 8.4.0] on linux
Type "help", "copyright", "credits" or "license" for more information.
>>> import numpy
Illegal instruction (core dumped)

NumPy/Python version information:

• Python 3.6.9
• Numpy 1.19.5

Related issues:

• [numpy-1.19.3, py3.6.2, dockerized env] - Fatal Python error: Segmentation fault (core dumped) #17674 (segmentation fault in Numpy 1.19.3; was fixed in 1.19.4)
• numpy-1.19.4 import numpy Segmentation fault #17834 (segmentation fault in Numpy 1.19.4; looks related but Numpy 1.19.4 does work for me)

Numpy 1.19.4 ,python 3.6.9 , opencv-python and opencv_contrib_python 4.5.1.48 work, tks~~~

Had to rollback to 1.19.4 as well.