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SubjectRe: [PATCH] ipc,shm: increase default size for shmmax
> Why aren't people just setting the sysctl to a petabyte?  What problems
> would that lead to?

Historically - hanging on real world desktop systems when someone
accidentally creates a giant SHM segment and maps it.

If you are running with vm overcmmit set to actually do checks then it
*shouldn't* blow up nowdays.

More to the point wtf are people still using prehistoric sys5 IPC APIs
not shmemfs/posix shmem ?



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