Weekly appimage segfaulted while upgrading faces database, segfaults every time

[Michael Moore]

Thanks, it's running again now, and has already run for much longer than it
did the first time.

Yes, I have "Use full CPU" turned on.

On Wed, Feb 5, 2025 at 4:56 PM Michael Miller <michael_miller at msn.com>
wrote:

> Hi Michael,
> If digiKam segfaulted while retraining, then the retraining isn’t
> complete.  I’ll change that so it doesn’t mark it as complete until it
> finishes.
>
> To redo the training, go to Tools->Maintenance->Detect and recognize
> faces, and select “Rebuild all training data”.  Let that complete before
> you try any other face options.
>
> Do you have “Use full CPU” turned on in the People sidebar and in the
> Maintenance view?
>
> Cheers,
> Mike
>
> > On Feb 5, 2025, at 10:35 AM, Michael Moore <stuporglue at gmail.com> wrote:
> >
> > Hello,
> >
> > I have been using 8.5 appimage and decided to try the weekly appimage.
> I'm using the debug image
> (digiKam-8.6.0-20250205T150105-Qt6-x86-64-debug.appimage)
> >
> > It showed a dialog saying that the Face Recognition database was out of
> date and results wouldn't be accurate until it was upgraded. I said yes to
> the upgrade and then allowed the next dialog to download the 4 new image
> recognition libraries.
> >
> > A few moments later Digikam segfaulted.
> >
> > When I start it again the database-upgrade notice doesn't return, but I
> don't know that it completed successfully.
> >
> > Q1 - Do I need to trigger something so that the face database upgrade is
> complete?
> >
> > After the segfault Digikam prompted to download the libraries again, but
> this time those downloaded successfully.
> >
> > Now when I try to run facial recognition I get a segfault every time. I
> set the dialog to "Recognize faces only" and then click "Scan collection
> for faces".
> >
> > Q2 - Is this a known / expected segfault, or should I collect some more
> info?
> >
> > The last lines of output in the terminal look like this.
> >
> > Digikam::DImg::load:
> "/shared/big/no_backup/ro_photos/photos/2022/02/18/YFEZ0700.HEIC" : "HEIF"
> file identified
> > Digikam::DMetadata::load: Loading metadata with "Exiv2" backend from
> "/shared/big/no_backup/ro_photos/photos/2022/02/18/YFEZ0700.HEIC"
> > unknown: HEIF color profile found with size: 548
> > unknown: HEIF image size: ( 3024 x 4032 )
> > unknown: Decoded HEIF image properties: size( 4032 x 3024 ), Alpha:
> false , Color depth : 8
> > unknown: HEIF data container: 0x7f75e5d1d010
> > unknown: HEIC bytes per line: 12096
> > unknown: Color bytes depth: 8
> > unknown: Color multiplier: 1
> > Digikam::StackedView::setViewMode: Stacked View Mode :  1
> > Digikam::FocusPointGroup::load: FocusPointsGroup: no Point to load
> > Digikam::PreviewLoadingTask::execute: Try to get preview from
> "/shared/big/no_backup/ro_photos/photos/2008/09/04/yellowstone blog -
> 07.jpg"
> > Digikam::PreviewLoadingTask::execute: Preview quality:  0
> > Digikam::DMetadata::load: Loading metadata with "Exiv2" backend from
> "/shared/big/no_backup/ro_photos/photos/2008/09/04/yellowstone blog -
> 07.jpg"
> > Digikam::PreviewLoadingTask::loadImagePreview: Try to load DImg preview
> from: "/shared/big/no_backup/ro_photos/photos/2008/09/04/yellowstone blog -
> 07.jpg"
> > Digikam::DImg::load:
> "/shared/big/no_backup/ro_photos/photos/2008/09/04/yellowstone blog -
> 07.jpg" : "JPEG" file identified
> > Digikam::DMetadata::load: Loading metadata with "Exiv2" backend from
> "/shared/big/no_backup/ro_photos/photos/2008/09/04/yellowstone blog -
> 07.jpg"
> > Digikam::FaceDb::setting: FaceDB SelectFaceSetting val ret = 0
> > Digikam::FaceDb::setting: FaceDB SelectFaceSetting val ret = 0
> > Digikam::FacesEngine::slotStart: Total is 28029
> > Digikam::DNNFaceDetectorYuNet::DNNFaceDetectorYuNet: Creating new
> instance of DNNFaceDetectorYuNet
> > Digikam::DNNFaceDetectorYuNet::loadModels: Face detection model: "YuNet"
> ready
> > Digikam::MLPipelineFoundation::checkMoreWorkers:
> MLPipelineFoundation::checkMoreWorkers: Sending signal to more workers
> > Digikam::MLPipelineFoundation::checkMoreWorkers:
> MLPipelineFoundation::checkMoreWorkers: Sending signal to more workers
> > Digikam::MLPipelineFoundation::checkMoreWorkers:
> MLPipelineFoundation::checkMoreWorkers: Sending signal to more workers
> > [ WARN:0 at 80.706] global ocl4dnn_conv_spatial.cpp:1931 loadTunedConfig
> OpenCV(ocl4dnn): consider to specify kernel configuration cache directory
> through OPENCV_OCL4DNN_CONFIG_PATH p
> > arameter.
> > OpenCL program build log: dnn/dummy
> > Status -11: CL_BUILD_PROGRAM_FAILURE
> > -cl-no-subgroup-ifp
> > Error in processing command line: Don't understand command line argument
> "-cl-no-subgroup-ifp"!
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish aligning face in
> 98  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Start neural network
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  106  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  122  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  142  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  161  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  104  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  115  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  72  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  49  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  56  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  13  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  325  ms
> > Digikam::FaceClassifier::predictFullSearch:
> FaceClassifier::predictFullSearch: classifier prediction is:  159
> completed in  0
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish aligning face in
> 426  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Start neural network
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: No face landmarks found
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  68  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish computing face
> embedding in  105  ms
> > Digikam::FaceClassifier::predictFullSearch:
> FaceClassifier::predictFullSearch: classifier prediction is:  -1  completed
> in  0
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Finish aligning face in
> 532  ms
> > Digikam::DNNSFaceExtractor::getFaceEmbedding: Start neural network
> > /tmp/user/1001/.mount_digiKaO6gtZg/AppRun: line 261: 149464 Segmentation
> fault      (core dumped) digikam $@
> >
> > It says core dumped, but I don't see the dump file.
> >
> > Thanks,
> > Michael
>
>
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