Sorry, I forgot to inform you. I have successfully installed PostgreSQL on my Mac Book with above setting.

who don’t want to restart after modifying sysctl.conf. Just run ‘sysctl -p’ to load new sysctl setting.

Thanks again for the help.

I didn’t have any problems after making these edits, but it goes without saying: before editing make sure you make a backup copy of the configuration file.

I am getting same above error. But I worried to edit in kernel file.

Is this safe modify kernel parameter ?

My MacBook has 4 gb Ram.