Maximum Shared Memory Size

Is there a maximum size for shm_open() for creation of shared memory areas? I’m guessing that there is, but I’m having trouble finding it listed anywhere and/or if it is configurable. I would like to enlarge the setting if that is possible in QNX ( I believe it is configurable in Linux)

Doug Owens

I beleive it’s limited by physical memory and number of virtual page. I’m pretty sure what ever the limit is, it can’t be grown.

Doug - why do you want to set it larger/