[digikam] [Bug 338176] New: Digikam-4.2.0 sometimes crashes when recognising faces

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https://bugs.kde.org/show_bug.cgi?id=338176

--- Comment #77 from Ritesh Raj Sarraf <[hidden email]> ---
(In reply to Peter from comment #76)
> This memory blow-out occurs during face tagging on my digikam 4.0 that came
> with Linux Mint 17.3 KDE and also on digikam 4.14 which I installed from
> philip5. The dodgy process fills swap memory quickly until it reaches the
> maximum crashing the program at that point. Shutting down the digikam GUI
> before this happens leaves a digikam process running until the memory limit
> is reached. I've read most of the above and the "RESOLVED FIXED" but it's
> very confusing. Can someone please give the solution in plain English?

You should try out Digikam 5.x. I have not seen the issue on Digikam 5.

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--- Comment #78 from Peter <[hidden email]> ---
Thank you for the prompt reply Ritesh.
The official repository has digikam 4.0. How do I get 5.x?

digikam.org advises tarball installation of 5.0 but "you run into all kinds of
problems related to compiling". This sounds scary, but OK let's have a go:

> sudo apt-get remove digikam (removes v4.14)
> sudo apt-get build-dep digikam (no errors)
> sudo apt-get build-dep kipi-plugins (no errors)
> kf5-config --prefix (replies: command not found)
> bootstrap.linux (replies: This script require kf5-config CLI tool from KDE project but it's not installed.)
> sudo apt-get install kf5-config (replies: Unable to locate package kf5-config)
> kde4-config --prefix (replies: /usr)

... any suggestions how to install 5.0?

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Andrew Goodbody <[hidden email]> changed:

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                 CC|                            |[hidden email]

--- Comment #79 from Andrew Goodbody <[hidden email]> ---
Well Debian testing has 5.1.0, not sure how that relates to Mint. Also I though
Philip had a ppa with 5.x in it, but I don't know that for sure. The build-dep
will have only pulled in support for bulding digikam 4.x, unless you point at a
repository with digikam 5.x in it. So you will need a whole bunch of kf5 dev
packages.

# apt-file find kf5-config
libkf5kdelibs4support5-bin: /usr/bin/kf5-config
libkf5kdelibs4support5-bin: /usr/share/man/ca/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/de/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/it/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/nl/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/pt_BR/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/sv/man1/kf5-config.1.gz
libkf5kdelibs4support5-bin: /usr/share/man/uk/man1/kf5-config.1.gz
# apt-get install libkf5kdelibs4support5-bin

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--- Comment #80 from Peter <[hidden email]> ---
In view of the deepening hassles, I gave up on digiKam 4.x. All versions that I
tried crashed out on memory overflow during face detection as well as on face
tagging as described above.

So, installed Linux Mint 18 (which also came with a version 4 digiKam) and then
got digiKam 5.1 from philip5/extras. Now face tagging works without the memory
overflow, great! This is very exciting and I have high hopes that digiKam will
be a very useful tool for managing my photo collection (when I learn to drive
it properly).

Face detection by v5.1 works, mostly.  I've had a couple of crashes with face
detection, but I haven't worked out the circumstances. I haven't tried face
recognition, denoted as 'experimental'.

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           What    |Removed                     |Added
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          Component|Faces-Management            |Faces-Recognition

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