Random server crashes
 

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.

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

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 .