Illegal instruction(cpre dumped)

Posted 2022-10-24 AI浩

项目场景：

在使用英伟达Jetson平台执行Python时命令的出现“Illegal instruction(cpre dumped)”错误

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问题描述

在使用英伟达Jetson平台执行Python时命令的出现“Illegal instruction(cpre dumped)”错误，导致Python命令无法执行。

原因分析：

详见这里：
https://stackoverflow.com/questions/65631801/illegal-instructioncore-dumped-error-on-jetson-nano

The ‘illegal instruction’ could be due to an recent change in the getauxval(AT_HWCAP).
An attempt to read cpuid information from /sys/devices in the event that getauxval did not succeed. (OpenBLAS PRs 2952 and 3004)

export OPENBLAS_CORETYPE=ARMV8 (or whatever the actual hardware is) before launching python should hopefully get around this. For example:

OPENBLAS_CORETYPE=ARMV8 python

The ‘illegal instruction’ could be due to an recent change in the getauxval(AT_HWCAP).
An attempt to read cpuid information from /sys/devices in the event that getauxval did not succeed. (OpenBLAS PRs 2952 and 3004)

export OPENBLAS_CORETYPE=ARMV8 (or whatever the actual hardware is) before launching python should hopefully get around this. For example:

OPENBLAS_CORETYPE=ARMV8 python
If you would like to make this export permanent, you should open your .bashrc file by typing on the terminal:

nano ~/.bashrc

Afterwards, just add “export OPENBLAS_CORETYPE=ARMV8” to the bottom of your .bashrc file, save/exit and reboot your system:

export OPENBLAS_CORETYPE=ARMV8

for more details look at:

https://github.com/numpy/numpy/issues/18131 https://www.reddit.com/r/JetsonNano/comments/ktcyoh/illegal_instructioncore_dumped_error_on_jetson/

解决方案：

执行命令：

export OPENBLAS_CORETYPE=ARMV8

永久的解决方法：将上面这句话添加到~/.bashrc中。
命令：

gedit ~/.bashrc

打开~/.bashrc 在末尾加入

export OPENBLAS_CORETYPE=ARMV8

关闭文件

source ~/.bashrc

更新配置。

然后就可以使用。唉！问题可真多。