I was trying to write a function which does a DES encryption for
Postgres, which I would then link in as a C function. I got the
function more or less working on its own, and then I tried to link it
to PG. The first time I executed the function, the backend died.
Then, I removed the Unix domain socket, and made sure that no
postmasters were running, and tried to restart PG, and I got this
> pg_ctl -D /home/data start
pg_ctl: It seems another postmaster is running. Try to start
pg_ctl: Cannot start postmaster. Is another postmaster is running?
> IpcSemaphoreCreate: semget failed (No space left on device)
key=5432015, num=16, permission=600
This type of error is usually caused by an improper
shared memory or System V IPC semaphore configuration.
For more information, see the FAQ and platform-specific
FAQ's in the source directory pgsql/doc or on our
web site at http://www.postgresql.org.
FATAL 1: InitProcGlobal: IpcSemaphoreCreate failed
Any tips on this? I checked all the processes, and definitely, no
postmaster is running, no psql clients are running, no apache is
running, nothing, and yet PG won't restart. How do I get it to
Also, I need some help on this function writing. More questions
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