Random server crashes

[ImZan]

I'm getting random server crashes on my machine.

The system is a Dual Quad Core with 16gb ram
There is 13GB free ram in the system :

root@ssd [/home/lsws-4.2.1]# free -m
total used free shared buffers cached
Mem: 16049 15910 139 0 553 12557
-/+ buffers/cache: 2799 13250
Swap: 0 0 0


The system was running : 4.1.2
The system shows no errors in the /var/log/messages
I don't see any errors that are relevant to system. when the server crashes. I'm quite baffled by this.

[webizen]

your screenshot shows only 139M RAM is available. you don't have swap setup. so likely an out of memory issue.

[ImZan]

Hello

It's linux. So the actual free memory is the one that is listed under : buffer + cache free . That lists it as : 13250 - so 13+gb .