After RAM upgrade, the system does not show correct memory amount
Issue
- New RAM is added to the system and 'dmidecode' shows total of 384GB, but 'free -m' does not show correct information
[root@localhost:~]# dmidecode 2.11 | grep Size | grep 32
Installed Size: 320 kB
Maximum Size: 320 kB
Installed Size: 320 kB
Maximum Size: 320 kB
Installed Size: 320 kB
Maximum Size: 320 kB
Installed Size: 320 kB
Maximum Size: 320 kB
Maximum Size: 32768 kB
Maximum Size: 32768 kB
Maximum Size: 32768 kB
Maximum Size: 32768 kB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
Size: 32 GB
- It only shows 252 GB of memory with 'free' command
[root@localhost:~]# free -m
total used free shared buffers cached
Mem: 258077 2325 255751 0 180 1390
-/+ buffers/cache: 755 257321
Swap: 61439 0 61439
Environment
- Red Hat Enterprise Linux
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