Play track while analyzing: Segmentation fault

[Till Hofmann]

1. Start to analyze a song
2. Load the song on a deck before Mixxx finished analyzing
Result:
Mixxx crashes (Segmentation fault).
Segmentation is the only error message it gives.

Note: If you do
1. Analyze a song, wait until it is finished
2. Analyze it again
3. Load it on a deck while it's analyzing
NO error occurs.

Mixxx trunk
Ubuntu 10.10

[RJ Skerry-Ryan (rryan)]

Hi Till,

Thanks for the report! Can you get us a backtrace for the segfault?

http://mixxx.org/wiki/doku.php/creating_backtraces

Thanks,
RJ Ryan

[Till Hofmann (morxa)]

When I created the backtrace, mixxx didn't close anymore but just froze.

It seems like this bug only occurs if the playcount is 0.
If it's >0, everything works as it is supposed to.

[jus (jus)]

If you created the backtrace you must quit the GDB terminal session then Mixxx will close.
NOTE: You may be asked if you want to kill the program. Answer yes.

(gdb) quit
The program is running. Exit anyway? (y or n) y

[Till Hofmann (morxa)]

Thanks jus,

I only mentioned it because the behaviour was different, not because I had problems stopping the program.
I know how to kill :) But thanks anyway

[Till Hofmann (morxa)]

If you
1. load the track on a deck
2. Start analyzing it while it is still playing,
the same bug occurs.

[RJ Skerry-Ryan (rryan)]

The interesting bit in that backtrace is that there are two analyzers running concurrently. There probably is some issue with running a single track through multiple AQs or something.

[Peter G. Marczis (marczis)]

Can you create a core file instead of the bt ?
You can set the core file limit with:
ulimit -c unlimited

Then just reproduce the problem normally, no gdb no extra thing needed. And please share the generated "core" file.

Thanks in advance !

[Uwe Klotz (uklotzde-deactivatedaccount)]

I cannot reproduce this with the current development version, and I analyze and play a lot and of tracks concurrently. Most likely to be fixed with the upcoming version 2.1.

[Swiftb0y (swiftb0y)]

Mixxx now uses GitHub for bug tracking. This bug has been migrated to:
https://github.com/mixxxdj/mixxx/issues/5873