Crash during CXX compile

[Pito Salas]

I am having a weird problem that maybe you have seen. I am running on a Raspberry Pi, ROS Noetic, Ubuntu 20.04.64 bit.

I am running catkin make and ask it to build only linorobot, the raspberry Pi crashes after going through 60% of the recompile. It seems to crash on this

[ 66%] Building CXX object gpg_bran4/lino_pid/CMakeFiles/pid_listen.dir/src/lino_pid_core.cpp.o

Why would a compile cause a crash? This is reproducible. 

Thanks!

Pito

[Chris Albertson]

What could cause this

Running out of memory and not having a swap file or a big enough swap file.   Or less likely, running out of space on the SD card (file system full)

If the Make command is doing a parallel make with something like -p6 option then remove that.  Or try cross compiling on a larger desktop system or add a swap file

That is my guess.  It could be something else

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[Pito Salas]

You hit it on the nose! I had forgotten to create a swap file but doing that didn’t solve it. Then I noticed that all I had here was a Raspberry Pi 3 Model B Rev 1.2 with less than 1G of RAM. So I changed it to -j1 and now it worked.

Question: do you like me have multiple raspis lying around and never sure which one is in a particular robot (or at least I don’t pay attention to it?) What guideline do you use for model raspi to use for a ROS robot using camera, lidar, IMU? In terms of model and/or RAM?

Thanks!

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