According to the man page for shmat, supplying a non-NULL shmaddr
(with or without asserting SHM_RND) should attach a shared memory
segment to the address. However, the shmat call always fails unless
supplied with a NULL shmaddr. I quickly perused the sys_shmat function
in linux/ipc/shm.c (RedHat 6.1, kernel 2.2.5) and could not tell if
non-NULL behavior is even implemented. Would someone who is more
knowledgeable about shared memory than I tell me if it is possible to
attach an existing address to shared memory? Thanks.
Mark
-- Mark K. Gardner RADIANT Team Network Engineering, CIC-5 Los Alamos National Laboratory P.O. Box 1663, M.S. D451 Los Alamos, NM 87545 Email: mkg@lanl.gov Phone: 1-505-665-4953 --- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.rutgers.edu Please read the FAQ at http://www.tux.org/lkml/
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