[digikam] [Bug 381877] Digikam start allocating all memory when scans a new collection.

[bugzilla_noreply at kde.org]

https://bugs.kde.org/show_bug.cgi?id=381877

--- Comment #35 from caulier.gilles at gmail.com ---
You have a huge memory link about your NVidia video driver :

282,927 bytes in 1 blocks are possibly lost in loss record 47,954 of 47,969
==24333==    at 0x4C2DF55: calloc (in
/usr/lib/valgrind/vgpreload_memcheck-amd64-linux.so)
==24333==    by 0x43F4DE92: ??? (in /usr/lib/libGLX_nvidia.so.381.22)
==24333==    by 0x454783A0: ??? (in /usr/lib/libnvidia-glcore.so.381.22)

It's about OpenGL layer used... everywhere, as QtAV, OpenCV, Qt...

This is why it's not only relevant of on part of digiKam. The leak is
everywhere.

My tips to confirm :

- Create a VM with virtual box, and install a secondary system inside.
- install digiKam in this VM.
- run and check memory (here is work perfectly)

The VM will emulate OpenGL with an additional layer which will not use the
Nvidia driver directly.

About the original problem, you nivia package from your Linux has a serious
problem. I use also at work exclusively the NVidia cards for the Linux box
(nothing about DK), and i already seen this kind of problem. Updating the
driver or fixing the OpenGL settings can be a solution. There is a huge Nvidia
control panel to tune all the configurations.

Gilles Caulier

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