Bug 425972

Summary: Scan for face: crash under Windows during Album scan with multicore
Product: [Applications] digikam Reporter: support
Component: Faces-DetectionAssignee: Digikam Developers <digikam-bugs-null>
Status: RESOLVED FIXED    
Severity: crash CC: caulier.gilles, metzpinguin
Priority: NOR    
Version: 7.1.0   
Target Milestone: ---   
Platform: Microsoft Windows   
OS: Microsoft Windows   
Latest Commit: Version Fixed In: 7.2.0
Attachments: This configuration worked
This configuration crashed again

Description support 2020-08-30 10:00:20 UTC
Created attachment 131282 [details]
This configuration worked

SUMMARY
When scanning more than about 20 directories digicam crashed repeatably and in some cases Windows stopped with a Blue Screen and rebooted.

STEPS TO REPRODUCE
1. "Extras->Wartung" (engl. Extras->Maintenance?): Select a directory subtree with about 50 directories. 
2. check the box "Detect and recognize Faces": "rescan unrecognized faces"
3. The box "Work on all processor cores (when it's possible)" is checked

OBSERVED RESULT
Always: digicam crashed
Sometimes: Windows stopped with a BlueScreen




EXPECTED RESULT


SOFTWARE/OS VERSIONS
Windows: 10; Release 2004


ADDITIONAL INFORMATION
Workaround: When the box "Work on all processor cores (when it's possible)" was UN-checked, digikam worked fine
Comment 1 support 2020-08-30 10:05:58 UTC
Created attachment 131283 [details]
This configuration crashed again

It looks like that the option "work on all processor cores" is the reason for the crashes
Comment 2 Maik Qualmann 2020-10-03 19:48:32 UTC
Fixed with bug 426175.

Maik