OpenBSD, postgresql and semaphore failures during initdb

Today I upgraded my postgresql database instance on OpenBSD. Did a pg_dumpall, removed the old packages and then added the new ones (latest version 8.1.9 for OpenBSD 4.0 – yes I’m behind).

During the initialisation of the new DB, I got the following error:

creating directory /var/postgresql/data/pg_tblspc ... ok
selecting default max_connections ... 10
selecting default shared_buffers ... 50
creating configuration files ... ok
creating template1 database in /var/postgresql/data/base/1 ... FATAL: could not create semaphores: No space left on device
DETAIL: Failed system call was semget(1, 17, 03600).

The PostgreSQL documentation talks about this extensively. However I don’t want to recompile my kernel away from GENERIC. What else can I do?
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