Why does my programm work on ubuntu but crash with SIGSEGV on RPI3?

haxxe

hi,
i wrote an application for sending canbus frames and it works if i use it on my ubuntu machine.
but if i use it on my RPi3 it crashes once i start the frame function.
im clicking a button, then the slot function starts, but right after he went into a while loop it crashes with a sigsegv.
why?

And another thing, on ubuntu it crashes everytime i want to access a ui element, like a QTextBrowser, if the function is implemented as a slot and during its execution.. i can fix it if i make

Ui::MainWindow *ui

public instead of private.

And is it possible to call functions inside a slot function?
for example:

connect(ui->pbt_singleShot,SIGNAL(clicked()),this,SLOT(pushAllDataToSlaves()));

and inside pushAllDataToSlaves there is:

init_slave_send_struct()

but a global variable inside slave_send is not 0 as it implemented in it.

hope you understand everything, greetings

SGaist

Hi,

Why would you need to make your ui variable public ?

Can you share the code that is running and crashing ?

What about a stack trace for when it crashes ?