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Does FreeBSD support System V IPC primitives?

April 26, 2017FreeBSD IPC primitives support system

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Does FreeBSD support System V IPC primitives?

6 Answers

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Yes, FreeBSD supports System V-style IPC, including shared memory, messages and semaphores. Versions of FreeBSD later than 3.2 support System V IPC in the GENERIC kernel. In earlier versions of FreeBSD, enable this support by adding the following lines to your kernel config.

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Yes, FreeBSD supports System V-style IPC, including shared memory, messages and semaphores, in the GENERIC kernel. In a custom kernel, enable this support by adding the following lines to your kernel config.

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7.6. I have 128 MB of RAM but the system only uses 64 MB.

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Yes, FreeBSD supports System V-style IPC. This includes shared memory, messages and semaphores. You need to add the following lines to your kernel config to enable them.

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Yes, FreeBSD supports System V-style IPC. This includes shared memory, messages and semaphores. You need to add the following lines to your kernel config to enable them. options SYSVSHM options “SHMMAXPGS=64” # 256Kb of sharable memory options SYSVSEM # enable for semaphores options SYSVMSG # enable for messaging Recompile and install. NOTE: You may need to increase SHMMAXPGS to some ridiculous number like 4096 (16M!) if you want to run GIMP. 256Kb is plenty for X11R6 shared memory.