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Jails and Shared Memory

agnat edited this page 2012-05-11 05:02:58 -07:00

Apparently it is problematic to use sysvipc shared memory in jails:

• the issue: http://wiki.freebsd.org/Jails#Known_problems_and_bugs
• another article: http://www.freebsddiary.org/jail-multiple.php

The bottom line is: all jails share the same shared memory. The workaround: Use different UIDs for all instances of a process (e.g. postgresql).