[root@tvicam01 log]# ipcs -lm && ipcs -um && ipcs -m && cat /proc/sys/kernel/shmmax

------ Shared Memory Limits --------
max number of segments = 4096
max seg size (kbytes) = 1048576
max total shared memory (kbytes) = 4294967296
min seg size (bytes) = 1


------ Shared Memory Status --------
segments allocated 5
pages allocated 18005
pages resident  18005
pages swapped   0
Swap performance: 0 attempts     0 successes


------ Shared Memory Segments --------
key        shmid      owner      perms      bytes      nattch     status      
0x7a6d0002 163840     apache    700        9217036    3                       
0x7a6d0003 196613     apache    700        9217036    3                       
0x7a6d0004 229382     apache    700        9217036    3                       
0x7a6d0005 262151     apache    700        9217036    3                       
0x7a6d0007 294920     apache    700        36865516   4                       

1073741824
[root@tvicam01 log]#