https://root-forum.cern.ch/t/tbuffermerger-fails-to-write-histograms-to-output-file-for-alma-linux/64787
TBufferMerger fails to write histograms to output file for Alma Linux - ROOT - ROOT Forum
Apr 10, 2026 - Continuing the discussion from Multi-threaded output of TH* histograms via TBufferMerger: ROOT Version: 6.36.10 Platform: Alma Linux 8.10 (linuxx8664gcc)...
to write
https://root.cern.ch/doc/v632/classROOT_1_1TBufferMerger.html
ROOT: ROOT::TBufferMerger Class Reference
rootclassreference