Fixed memory leak in RegionalMuonGMTUnpacker [14_0]

[Dr15Jones]

PR description:

This was discovered while analyzing a re-reco job for memory issues.

PR validation:

Code compiles and was checked in master.

backport #46918

[cmsbuild]

A new Pull Request was created by @Dr15Jones for CMSSW_14_0_X.

It involves the following packages:

• EventFilter/L1TRawToDigi (l1)

@aloeliger, @cmsbuild, @epalencia can you please review it and eventually sign? Thanks.
@Martin-Grunewald, @dinyar, @eyigitba, @missirol, @mmusich, @thomreis this is something you requested to watch as well.
@antoniovilela, @mandrenguyen, @rappoccio, @sextonkennedy you are the release manager for this.

cms-bot commands are listed here

• Backported from Fixed memory leak in RegionalMuonGMTUnpacker #46918

[cmsbuild]

cms-bot internal usage

[Dr15Jones]

please test

[cmsbuild]

+1

Size: This PR adds an extra 12KB to repository
Summary: https://cmssdt.cern.ch/SDT/jenkins-artifacts/pull-request-integration/PR-09c369/43453/summary.html
COMMIT: 8698da2
CMSSW: CMSSW_14_0_X_2024-12-15-0000/el8_amd64_gcc12
User test area: For local testing, you can use /cvmfs/cms-ci.cern.ch/week0/cms-sw/cmssw/46950/43453/install.sh to create a dev area with all the needed externals and cmssw changes.

Comparison Summary

Summary:

• You potentially removed 5 lines from the logs
• Reco comparison results: 508 differences found in the comparisons
• DQMHistoTests: Total files compared: 48
• DQMHistoTests: Total histograms compared: 3349879
• DQMHistoTests: Total failures: 355
• DQMHistoTests: Total nulls: 0
• DQMHistoTests: Total successes: 3349504
• DQMHistoTests: Total skipped: 20
• DQMHistoTests: Total Missing objects: 0
• DQMHistoSizes: Histogram memory added: 0.0 KiB( 47 files compared)
• Checked 202 log files, 165 edm output root files, 48 DQM output files
• TriggerResults: no differences found

[mandrenguyen]

backport of #46918

[mandrenguyen]

@cms-sw/l1-l2 would you kindly have a look, as we would like to build a 14_0_X release today?

[aloeliger]

+l1

[cmsbuild]

This pull request is fully signed and it will be integrated in one of the next CMSSW_14_0_X IBs (tests are also fine) and once validation in the development release cycle CMSSW_15_0_X is complete. This pull request will now be reviewed by the release team before it's merged. @rappoccio, @sextonkennedy, @antoniovilela, @mandrenguyen (and backports should be raised in the release meeting by the corresponding L2)

[mandrenguyen]

+1