Solution : https://service.sap.com/sap/support/notes/1224858 (SAP Service marketplace login required)
Key words :
terms db6 db2luw luw sql0444 sql0444n db2diag, \\ibmcl12\saploc\sw2\sys\exe\run\db6pmudf, db6pm_lst sql080121140658600 \db6pmudf db6pm_lst 4 sqlerrp, 5 luw fix pack 2, oper system services, user defined functions, log udf reason, unc path names, column implementation begins, exe instance
Related Notes :
1147821 | DB6: Known Errors and available Fixes in DB2 9.5 LUW |
334777 | DB6: Missing user-defined functions |