Issue #20332 has been updated by jeremyevans0 (Jeremy Evans). Status changed from Open to Feedback Can you please provide a self contained example that does not require the ibm_db gem? Otherwise, I'm not sure we'll be able to debug this. ---------------------------------------- Bug #20332: After upgrading to ruby v 3.2.3 rb_scan_args() skips argument value https://bugs.ruby-lang.org/issues/20332#change-107866 * Author: praveenrocket (Praveen N) * Status: Feedback * ruby -v: 3.2.3 * Backport: 3.0: UNKNOWN, 3.1: UNKNOWN, 3.2: UNKNOWN, 3.3: UNKNOWN ---------------------------------------- Hi, Note: I am not an expert at ruby. I am working on ibm_db gem, its an adapter developed using ruby C extension, which helps ruby & rails applications to connect to DB2 database. Here is a github link for its source https://github.com/ibmdb/ruby-ibmdb/tree/master As of now ibm_db gem is compatible with ruby v 3.1. Now I am trying to make ibm_db gem compatible with ruby v 3.2.3. All my test cases were working for ruby v 3.1, but post upgrading to ruby v 3.2.3, most of my test cases are failing. After debugging using gdb what I see is, my ruby test cases calls ruby C extension API passing required arguments, but inside C extension code arguments are not parsed, indeed nothing is read. Because of this most of test cases are failing. Below is a sample ruby script which when run calls ibm_db extension, ``` ruby $ irb irb(main):001:0> require 'ibm_db' => true irb(main):002:0> conn = IBM_DB.connect("DATABASE=sample;HOSTNAME=waldevdbclnxtst06.dev.rocketsoftware.com;PORT=60000;PROTOCOL=TCPIP;UID=zurbie;PWD=A2m8test;",'','') (irb):2: warning: undefining the allocator of T_DATA class IBM_DB::Connection => #<IBM_DB::Connection:0x00007ff60314ce58> irb(main):003:0> stmt = IBM_DB.exec conn,'create table abc(C1 int)' => false irb(main):004:0> irb(main):005:0> IBM_DB.close(conn) => true irb(main):006:0> exit ``` Above, If you observe IBM_DB.exec is called passing two arguments conn & string with create table query. In extension code https://github.com/ibmdb/ruby-ibmdb/blob/master/IBM_DB_Driver/ibm_db.c, below function will be called ``` c VALUE ibm_db_exec(int argc, VALUE *argv, VALUE self) { .... rb_scan_args(argc, argv, "21", &connection, &stmt, &options); ...... } ``` Note: Please refer https://github.com/ibmdb/ruby-ibmdb/blob/master/IBM_DB_Driver/ibm_db.c for complete code. rb_scan_args used to parse arguments very well in ruby v 3.1, but now its failing to do so. I see stmt parameter doesnt hold anything. I just want to know whats issue here, Am I passing arguments in wrong way (in ruby script), or am I not using rb_scan_args properly ? To reproduce, Install ruby v 3.2.3, Install ibm_db gem version 5.4.1 (latest) Run above sample ruby script using IRB. Response at earliest is much appreciated. Thanks Praveen -- https://bugs.ruby-lang.org/