Error: "DoFunction fork failed" in the Messaging Server 3.x logs on Digital Unix or AIX

Question

Receiving error message DoFunction fork failed in the Messaging Server 3.x logs
on Digital Unix or AIX.
<P>
The dxkerneltuner command is one way to raise the number of user
processes on Digital Unix. Steps follow:
<OL>
<LI>Login as root (or su to root) on Digital Unix and execute the
dxkerneltuner command.
<P>An X-Windows window will pop up with a list of
kernel subsystems (tuning categories).
<P>
<LI>Double-click the "proc" subsystem.
<P>
A child window will pop up, displaying parameters in that category, along with
their associated values and limits. These should include parameters
named "max-proc-per-user" and "max-threads-per-user", which are by default,
64 and 267 respectively.
<P>
These should be replaced by values more
consistent with the Messaging Servers resource requirements. Provided
the default Messaging Server installation is used, more appropriate values
for these parameters would be 640 and 2560 respectively.
<P>
<LI>To implement
these new values, replace the value 64 with 640 for max-proc-per-user in the
child window and replace the value 267 with 2560 for max-thread-per-user.
<LI>Click OK on the child window and exit the parent window.
<LI>Reboot Digital Unix to implement the kernel changes.

Answer 1

I have bkp OD, trash server.app / reboot / install server.app again and working fine now.
Thanks !