shared memory

I am having timing-specific problems with a process-shared mutex in FreeBSD 12.3; sometimes pthread_mutex_lock or pthread_mutex_unlock will throw an exception. I have seen comments that process-shared mutexes were not supported in some older versions of FreeBSD, but it appears it should be...

I have a process that (by design) fails to start if its shared memory created with shm_open already exists. If the process crashes or is kipped with pkill, the process will not start until FreeBSD is rebooted. I'm looking to create a "clean" sh script to detect if the shared memory exists and...

Hi, I have to run many instances of PostgreSQL in different jails. And it seems it's not currently possible to run PostgreSQL in a jail without setting sysvipc_allow="YES" in the jail config. (Or is it? I stumbled onto this: https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=48471 where someone...