UEK3: Slab Memory in size-1024 Keeps increasing

(Doc ID 2315306.1)

Last updated on OCTOBER 10, 2017

Applies to:

Linux OS - Version Oracle Linux 6.4 with Unbreakable Enterprise Kernel [3.8.13] and later
Linux x86-64

Symptoms

On Oracle Linux 6 server with UEK3 kernel running, there are huge Slab memory consuming.

For example, from /proc/meminfo, there are 12G slab memory consumed:


MemTotal: 30688552 kB
MemFree: 3990884 kB
..
Slab: 12013388 kB <=== here
..

The UEK3 kernel version is  3.8.13-16.2.1.el6uek.x86_64 or lower.

Changes

 

Cause

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