BUG #13654: how can i solve "cannot initialize shared memory"

The following bug has been logged on the website:

Bug reference:      13654
Logged by:          Daegeon Kwon
Email address:      dgkwon@insilicogen.com
PostgreSQL version: 9.4.4
Operating system:   mac 10.10.5
Description:

hi, I`m korean developer.

im not good at english.....

when i develop webpage usnig django and postgres, server has critical error
"EDB_Error: Cannot initailize shared memory".

in my test,  psql is well done usnig simple query  but some qureys that
containes lots of conditions are not working  "Cannot Initialize shared
memory"


I can`t find letters about this error in psql webpage and google search.

how can i do for solving this problem ?