Matti Kortelainen

The error complains about ``` No Dictionary for class: '_Rb_tree' ``` but that should get defined via https://github.com/cms-sw/cmssw/blob/450f248b8d24194a8962f492f6030147fd70e9dc/DataFormats/L1Trigger/src/classes_def.xml#L35-L36 https://github.com/cms-sw/cmssw/blob/450f248b8d24194a8962f492f6030147fd70e9dc/DataFormats/L1Trigger/interface/P2GTAlgoBlock.h#L9-L12 @pcanal Any thoughts what could be going wrong?

We can probably close the issue then

+visualization

@cmsbuild, please close

> It involves the following packages: > ... > * RecoTICL/README.md (****) A lot of our machinery will treat the `RecoTICL/README.md` as a package instead of a file. @smuzaffar

The earlier test (https://github.com/cms-sw/cmssw/pull/48377#issuecomment-3117747436) crashed in ``` #2 0x000014aa73480164 in sig_dostack_then_abort () from /cvmfs/cms-ib.cern.ch/sw/x86_64/nweek-02899/el8_amd64_gcc12/cms/cmssw-patch/CMSSW_15_1_X_2025-07-24-2300/lib/el8_amd64_gcc12/pluginFWCoreServicesPlugins.so #3 #4 0x000014aa435eb604 in ClusterShapeHitFilter::isCompatible(SiPixelRecHit const&, Vector3DBase const&, SiPixelClusterShapeCache const&, ClusterShapeHitFilter::PixelData const*) const () from /cvmfs/cms-ib.cern.ch/sw/x86_64/nweek-02899/el8_amd64_gcc12/cms/cmssw-patch/CMSSW_15_1_X_2025-07-24-2300/lib/el8_amd64_gcc12/libRecoTrackerPixelLowPtUtilities.so...

assign dqm

@pcanal Any thoughts? It looks like a threading problem (doesn't reproduce on 1 thread), and on 4 threads in all the past 5 RNTUPLE_X IBs we have logs for the...

> a debug build of ROOT We need to build one now that the RNTUPLE_X IB is built with production setup

> The meta description does indeed point to a thread problem. The low level symptom (wrong bytecount) unfortunately does not help (it could be that the writing was wrong or...