ATG7 patch gets stuck

We get the following error in the worker logfile.

AD Worker error:

Unable to allocate memory in procedure aiumab().
(num_needed=5120) > (max_allocatable[record_type]=4096) and record_type = 8

We have tried the following things,

1) Increase the SGA of the database
2) bounce the database server to free up the memory.
3) Set the following parameters at the AIX level on db and apps node.

export LDR_CNTRL=MAXDATA=0x80000000@DSA
export AIXTHREAD_SCOPE=S
export ADJREOPTS="-mx512m"

We still face the same issue.