Segmentation fault" error in RaspberryPi 3B+

[Creact-Onizuka]

Hi I'm trying to use RaspberryPi 3 model B+ and MSCL, but it showed and does not work with "segmentation fault" error. and I have also tried pre-built package and source code compilation, but both are not going well. I'm using version 62.1.2. Would you please advise me how to solve this matter .

[robbiefish]

Hi @Creact-Onizuka

A couple questions:

1. What architecture is the OS you are using? This can be found with uname -m
2. Which package are you installing? the armhf or arm64 package?
3. Are you seeing a segmentation fault with both the package and source install?
4. Did you make any modifications to the example source code?

I unfortunately do not have access to a RaspberryPi3 to test this with, but I tested a similar setup in arm32v7 and arm64v8 docker containers, and was unfortunately unable to reproduce the error you were seeing.

Could you try running the program in gdb and sending the core dump? Instructions for reference:

$ gdb ./YourProgram
(gdb) r
(gdb) gcore

[Creact-Onizuka]

Thanks for the response @robbiefish

armv7l I used the following software to perform a standard setup. https://www.raspberrypi.com/software/

package is armhf https://github.com/LORD-MicroStrain/MSCL/releases/download/v62.1.2/c++-mscl_62.1.2_armhf.deb

Yes. The source code was downloaded from here. https://github.com/LORD-MicroStrain/MSCL/archive/refs/tags/v62.1.2.zip The build runs the following script. MSCL-62.1.2\BuildScripts\linuxManualBuild\Debian\MSCL_Install.py Compilation stopped halfway through, so I changed the swap size and cooled the CPU.

sudo service dphys-swapfile stop sudo vim /etc/dphys-swapfile CONF_SWAPSIZE=1024 sudo service dphys-swapfile start

The build completed successfully, but when I ran it, the result was the same as the package.

Change the 15th line of the sample code as shown below. const string COM_PORT = "/dev/ttyACM0";

As seen in the previous image, I added -pthread to the compile options and set the path to libmscl.so before execution.

The results of the dump and main.cpp are attached.

Thanks. mscl-raspi_dump.zip

[Creact-Onizuka]

Core dump message.

Reading symbols from ./YourProgram...(no debugging symbols found)...done. (gdb) r Starting program: /home/pi/mscl/MSCL_Inertial_Example_C++/YourProgram [Thread debugging using libthread_db enabled] Using host libthread_db library "/lib/arm-linux-gnueabihf/libthread_db.so.1". [New Thread 0x767b7450 (LWP 1084)] [Thread 0x767b7450 (LWP 1084) exited] Node Information:

Thread 1 "YourProgram" received signal SIGSEGV, Segmentation fault. 0x76d9c4b8 in mscl::Connection::write(mscl::ByteStream const&) const () from /usr/share/c++-mscl/libmscl.so (gdb) gcore Saved corefile core.1080

[Rejas181]

Did you solved it?, Because I'm having the exact same Issue

[Creact-Onizuka]

This problem could not be solved and switching to a 64-bit environment worked.