Genp Linux Official

// Allocate from private partition heap void *private_buf = genp_alloc(part, 512 * 1024);

In a traditional static partitioned system (common in ARINC 653-based avionics), each process or application gets a fixed block of memory. No sharing. No borrowing. This is safe but wasteful. genp linux

When you hear "memory management" in Linux, you likely think of the Buddy Allocator, slab , or malloc . But there is a lesser-known, powerful concept used in specialized real-time and embedded Linux kernels: Generalized Partitioning (GenP) . // Allocate from private partition heap void *private_buf

The kernel ensures that if genp_return() is not called within 100 ms, the global reclaim thread forcefully revokes the memory—even if it means invalidating the process’s mapping (handled via SIGSEGV recovery in safe designs). You might think: “Can’t cgroups limit memory and mlockall() lock pages?” This is safe but wasteful

Is it overkill for a web server? Absolutely. Is it essential for a self-driving car’s brake controller? Probably yes.