https://bugs.kde.org/show_bug.cgi?id=405847
Bernd <prof7...@gmail.com> changed:
What |Removed |Added
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CC| |prof7...@gmail.com
--- Comment #48 from Bernd <prof7...@gmail.com> ---
I found the easiest way to provoke it is to enable the preview in dolphin and
then open a folder with a ton of images. Dolphin will be busy for a while
trying to generate previews and if you move around the mouse and hover above
some images while the previews are still loading it will become even more busy
because now it will also try to extract the exif data from the files to show in
the side panel along with a larger preview image.
eventually there will be a bunch of images whose preview is missing. If you try
to copy this file to the desktop it will be corrupted. You can cose dolphin or
F5 multiple times, the same file will appear to stay in this corrupted state.
It is corrupted in the file system cache. If you drop caches and buffers and
try to copy it again it will most likely succeed.
The only reliable way I have found to copy a folder with lots of files and
avoiud corruption is to close dolphin, open a console, then
sudo sh -c "echo 3 > /proc/sys/vm/drop_caches"
to remove any corrupted file fragments left over in the caches and then copy
the entire folder using cp -r or midnight commander in the console, that way it
will not try to open more than one file at a time and then no corruption will
happen.
I have observed this with two different PCs (Kubuntu 18.04 and Kubuntu 19.10)
and the Android version 1.13.7 from Play Store.
My phone identifies itself as Galaxy S7, Android 8.0.0
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