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RHEL 9.8 Oracle Database 19.31 Fails to Start - ORA-15186: ASMLIB

edited Jun 11, 2026 6:23PM in Database Memory & 4030/4031 (MOSC) 3 commentsAnswered ✓

PROBLEM: RHEL 9.7 updated to RHEL 9.8 and Oracle Database 19.31 Fails to Start
MESSAGE: ORA-15186: ASMLIB error function = [asm_init], error = [9], mesg = [io_uring initialization failure] | ERROR: error ORA-15186 caught in ASM I/O path

[root@mondblnxora1 ~]# cat /etc/redhat-release
Red Hat Enterprise Linux release 9.8 (Plow)
[root@mondblnxora1 ~]#

su - oracle

srvctl start database -db rcat

tail -n 100 $ORACLE_BASE/diag/rdbms/rcat/rcat/trace/alert_rcat.log

...
2026-06-10T14:34:21.522924-07:00
Errors in file /orahome1/dbbase1/diag/rdbms/rcat/rcat/trace/rcat_mmon_425124.trc:
ORA-15186: ASMLIB error function = [asm_init], error = [9], mesg = [io_uring initialization failure]
ERROR: error ORA-15186 caught in ASM I/O path

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