Issue #19527 has been updated by rubyFeedback (robert heiler). Seems to be identical indeed. ---------------------------------------- Bug #19527: Object allocation during garbage collection phase https://bugs.ruby-lang.org/issues/19527#change-102382 * Author: hjimenez89rb (Hugo Alberto Jiménez Santos) * Status: Open * Priority: Normal * ruby -v: 3.2.1 * Backport: 2.7: UNKNOWN, 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN ---------------------------------------- We are currently developing a Ruby based web application which connects to a DB2 Database and we have been using ibm_db-5.4.0 to establish a connection, suddenly we got a error related to RUBY garbage collector PHASE. We have checked the issue with IBM_team to make sure that It was not a IBM_GEM problem but as a result of their tests, IBM_GEM is working in different cases but for us we face up with those errors even with those versions (2.7.6, 3.1.2, 3.2.1): *0x0/usr/local/rvm/gems/ruby-3.1.2/gems/ibm_db-5.4.0/lib/active_record/connection_adapters/ibm_db_adapter.rb:760: [BUG] object allocation during garbage collection phase ruby 3.1.2p20 (2022-04-12 revision 4491bb740a) [x86_64-linux] *Exception occurred on Step thread ID #SID:34117;RSEQ:911723; wrong instance allocation; backtrace: /usr/local/rvm/gems/ruby-3.1.2/gems/ibm_db-5.4.0/lib/active_record/connection_adapters/ibm_db_adapter.rb:760:in server_info' (RuntimeError) /usr/local/rvm/gems/ruby-3.1.2/gems/ibm_db-5.4.0/lib/active_record/connection_adapters/ibm_db_adapter.rb:760:in initialize'. (all trace is attached in this ticket) OS name: "CentOS" version: "8" architecture: "x86_64" rvm: version: "1.29.12 (latest)" ---Files-------------------------------- LOGS3.txt (12.5 KB) LOGS4.txt (127 KB) LOGS2.txt (9.62 KB) LOGS1.txt (123 KB) -- https://bugs.ruby-lang.org/