Bug 489751

Summary:	Digikam freezes and closes if you save a face tag.
Product:	[Applications] digikam	Reporter:	C_Pr <cprt>
Component:	Faces-Engine	Assignee:	Digikam Developers <digikam-bugs-null>
Status:	RESOLVED FIXED
Severity:	crash	CC:	caulier.gilles, metzpinguin
Priority:	NOR
Version First Reported In:	8.3.0
Target Milestone:	---
Platform:	Microsoft Windows
OS:	Microsoft Windows
Latest Commit:		Version Fixed/Implemented In:	8.5.0
Sentry Crash Report:
Attachments:	Database files and image.

Description C_Pr 2024-07-04 18:46:25 UTC

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SUMMARY
Digikam freezes and closes if you save a face tag.

STEPS TO REPRODUCE
1. Image preview, face tagging: you draw the rectangle.
2. Either you enter first letters, select the person, press Enter, or you scroll the list of persons, double-click.
3. 

OBSERVED RESULT
DigiKam freezes and closes.

EXPECTED RESULT
I expect DigiKam not to freeze and close.

SOFTWARE/OS VERSIONS
Windows:  Windows 10
macOS: 
Linux/KDE Plasma: 
(available in About System)
KDE Plasma Version: 
KDE Frameworks Version: 
Qt Version: 

ADDITIONAL INFORMATION

Comment 1 Maik Qualmann 2024-07-04 18:54:50 UTC

The problem must be fixed in digiKam-8.4.0, please download the test version from here and report:

https://files.kde.org/digikam/

Maik

Comment 2 C_Pr 2024-07-16 05:30:48 UTC

Created attachment 171698 [details]
Database files and image.

Comment 3 C_Pr 2024-07-16 05:31:26 UTC

With another computer set with French language, I used Digikam 8.3, and I encountered no issue with face tagging.
I copied all the database files to the first computer, face tagging succeeds.
I removed all tags except People ones, I deleted all files except recognition.db, I asked Digikam to create a new database. I think it didn't remove recognition.db. Face tagging succeeds -> folder Digikam.success.
I created a new directory, I asked Digikam to create a new database, face tagging fails -> folder Digicam.failure.
It seems to me that the issue is related to recognition.db.

Comment 4 Maik Qualmann 2024-07-16 18:30:50 UTC

Git commit 4b21b81b55d85cd02ef62ef19780d8831694b5b9 by Maik Qualmann.
Committed on 16/07/2024 at 18:28.
Pushed by mqualmann into branch 'master'.

fix missing tags when changing database at runtime

M  +10   -0    core/libs/database/tags/tagscache.cpp

https://invent.kde.org/graphics/digikam/-/commit/4b21b81b55d85cd02ef62ef19780d8831694b5b9

Comment 5 Maik Qualmann 2024-07-16 18:44:03 UTC

Thank you for your work in creating a test case. However, I cannot reproduce any crashes with the "Digicam.failure" folder, regardless of whether I create a new face tag or use an existing one.
Please download the Microsoft program "DebugView", activate internal debugging in the digiKam settings under Miscellaneous -> System. Start DebugView, restart digiKam. Try to reproduce the problem, post the log in DebugView.

Maik

Comment 6 caulier.gilles 2024-07-17 06:25:13 UTC

Hi,

It's reproducible with last 8.4.0 release ?

https://download.kde.org/stable/digikam/8.4.0/

Best

Gilles Caulier

Comment 7 caulier.gilles 2024-10-08 01:27:45 UTC

@C_Pr

Do you seen my previous comment ?

Gilles Caulier

Comment 8 caulier.gilles 2024-10-16 11:02:01 UTC

No response and certainly already fixed