How to fix the Oracle error ORA-09856: smpalo: vm_allocate error while allocating pga.?

In this post, you’ll learn more about the Oracle ErrorORA-09856: smpalo: vm_allocate error while allocating pga. with the details on why you receive this error and the possible solution to fix it.

Oracle Error Description

ORA-09856: smpalo: vm_allocate error while allocating pga.

Reason for the Error ORA-09856: smpalo: vm_allocate error while allocating pga.

The vm_allocate system call returned an error.

How to fix the Error ORA-09856: smpalo: vm_allocate error while allocating pga. ?

You can fix this error in Oracle by following the below steps

Check returned error. Possibly out of system resources.