Bug: Segmentation fault

[Taur10]

Pretty straightforward, Phototonic suddenly closes when I try to open a folder of images on an external drive. Back when I ran Xfce, this would occasionally happen and was solved by logging out and back in, or rebooting, but I'm running Manjaro I3 now, and the problem is persistent.

Launching it from the terminal allowed me to get an error message of 'Segmentation fault (core dumped)' What is it, and how do I fix it?

[oferkv]

Hi, thanks for the report. Is this issue reproduced on the latest version?

[Taur10]

Let's see, I'm assuming it's the latest version, 2.1-1 out of the AUR. This has happened before, off an on over the last few months.

[oferkv]

Reproduction is just plugging in an external USB drive and running with the path argument?

[Taur10]

External drive is always plugged in. Problem occurs for example when I use the file list and select /run/media/taurbaseds9/pictures/furry/artists then select 'include sub directories' since as you can guess, images are organized by creator.

If you need system info, that's available here: https://forum.manjaro.org/t/dump-your-inxi-fxzc0-here-and-bookmark-it/8298/149

[Taur10]

Ok, having done some changes to my systems and having them run the same OS we have some more info on this. This problem is limited solely to my desktop system, ifn I plug the drive with my images on it into my laptop, everything works fine, but on my desktop, Phototonic fails. We've also reinstalled with the latest version on the AUR but that didn't fix the problem. Not sure if there might be a cache, preference file or some other file that might be corrupt that we can remove?

As to the systems, here are the INXI profiles: Desktop: https://pastebin.com/baeh0tDF Laptop: https://pastebin.com/Myc50Tnt

[oferkv]

Hi Taur10;

Thanks for your report. Easiest way to resolve this that I can think of at the moment, is for you to use a debug version, and once it crashes paste the stack trace here. So if you can, just:

1. Download the source from here
2. Run qmake
3. Edit Makefile and add "-g" to the CFLAGS and CXXFLAGS.
4. run make, then make install
5. Install gdb
6. run "gdb phototonic"
7. Once crash occurs, type "bt"

Paste the stack here... :)

Thanks!

[Taur10]

I'll see ifn I can do that, though my skills are rather sub-par. But I may have yet another clue. I deleted the config file, and it seems to be working at least for now.

[oferkv]

Ok, thanks! I updated the instructions just in case.

[sandsmark]

The best is to get a proper stacktrace like oferkv explained, but you can also just run coredumpctl dump phototonic to show the stacktrace of the latest crash of phototonic (only the Message part is interesting).

And ideally edit the OPTIONS= line in /etc/makepkg.conf (before (re-) building and installing phototonic from AUR), to make sure there isn't a ! in front of debug and there is a ! in front of strip. So it looks something like this: OPTIONS=(!strip docs !libtool staticlibs emptydirs zipman purge debug).

But I'll close this since it seems to be working for now. (I also fixed some potential crashes in master).