Hi all,
I'm running kdenlive 4:17.08.2-0ubuntu1 with MLT version 6.4.1 on Ubuntu 17.10.

The crash occurs when I try to stabilize clips - the progress bar usually shows and almost runs through, but at some point the app usually crashes.
The terminal reads:

Code: Select all

me@mylaptop:~$ kdenlive
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so' from launcher.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/qt5/plugins/kf5/kio/file.so'
QXcbConnection: XCB error: 8 (BadMatch), sequence: 631, resource id: 60817431, major code: 155 (Unknown), minor code: 11
org.kde.knotifications: Audio notification requested, but sound file from notifyrc file was not found, aborting audio notification
org.kde.knotifications: Audio notification requested, but sound file from notifyrc file was not found, aborting audio notification
KCrash: crashing... crashRecursionCounter = 2
KCrash: Application Name = kdenlive path = /usr/bin pid = 6388
KCrash: Arguments: /usr/bin/kdenlive
KCrash: Attempting to start /usr/lib/x86_64-linux-gnu/libexec/drkonqi from kdeinit
sock_file=/run/user/1000/kdeinit5__0
kdeinit5: Got EXEC_NEW '/usr/lib/x86_64-linux-gnu/libexec/drkonqi' from wrapper.
kdeinit5: preparing to launch '/usr/lib/x86_64-linux-gnu/libexec/drkonqi'
QSocketNotifier: Invalid socket 12 and type 'Read', disabling...
QSocketNotifier: Invalid socket 22 and type 'Read', disabling...
Gdk-Message: kdenlive: Fatal IO error 9 (Ungültiger Dateideskriptor) on X server :0.

The specified process does not exist.
kdeinit5: PID 6458 terminated.
Exception ignored in: <_io.TextIOWrapper name='<stdout>' mode='w' encoding='ANSI_X3.4-1968'>
BrokenPipeError: [Errno 32] Broken pipe

I would be thankful for any help and hope that I provided enough information for you, if not I'd of course post it as well!

Try with the last AppImage, melt and Qt version are newer

Thank you for the tip!

I have downloaded and tried the AppImage - it still crashes, but with a different error ;

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./kdenlive-17.08.2-x86_64.AppImage
trying to load "/tmp/.mount_kdenli84cnNs/usr/lib/qt5/plugins/kf5/kio/file.so" from "/tmp/.mount_kdenli84cnNs/usr/lib/qt5/plugins/kf5/kio/file.so"
QXcbConnection: XCB error: 8 (BadMatch), sequence: 641, resource id: 79691799, major code: 155 (Unknown), minor code: 11
[swscaler @ 0x7ff328cb1200] Warning: data is not aligned! This can lead to a speedloss
[IMGUTILS @ 0x7ff2b97f97e0] Picture size 1635018093x1684368686 is invalid
Cannot allocate memory.
sws: initFilter failed
[IMGUTILS @ 0x7ff2b97f97e0] Picture size 1635018093x1684368686 is invalid
Cannot allocate memory.
sws: initFilter failed
[IMGUTILS @ 0x7ff2b97f97e0] Picture size 1635018093x1684368686 is invalid
Cannot allocate memory.
sws: initFilter failed
[IMGUTILS @ 0x7ff2b97f97e0] Picture size 1635018093x1684368686 is invalid
Cannot allocate memory.
sws: initFilter failed
trying to load "/tmp/.mount_kdenli84cnNs/usr/lib/qt5/plugins/kf5/kio/file.so" from "/tmp/.mount_kdenli84cnNs/usr/lib/qt5/plugins/kf5/kio/file.so"
trying to load "/tmp/.mount_kdenli84cnNs/usr/lib/qt5/plugins/kf5/kio/file.so" from "/tmp/.mount_kdenli84cnNs/usr/lib/qt5/plugins/kf5/kio/file.so"
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
[vidstab] too low contrast. (no translations are detected in frame 382)
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
ALSA lib pcm.c:8306:(snd_pcm_recover) underrun occurred
[IMGUTILS @ 0x7ff28cff87e0] Picture size 1651249632x32755 is invalid
Cannot allocate memory.
sws: initFilter failed
/tmp/.mount_kdenli84cnNs/AppRun: Zeile 55: 16439 Gleitkomma-Ausnahme     (Speicherabzug geschrieben) kdenlive --config kdenlive-appimagerc $@


("Gleitkomma-Ausnahme" is a floating point exception)

Humm a picture of size 1.6 G * 1.6 G pixels makes a very huge size. It is certainly due to a corrupted image or video file.
Try with other video or image

I have tried with some other video files that I had used in previous projects a while back and the crashes persisted - I am not absolutely sure, but it looks a bit as if the error occurs when the new stabilized clip is automatically added to the project.

Ah, I didn't notice you where talking about stabilization.
These external libs are quite unreliable and not well maintained
Maybe try stabilizing the clip externally with FFmpeg?