MySQL Abnormal Crash

Hi,

Few days back I had faced MySQL v5.5.27 abnormal & random crash.
I am facing this issue since long time.

I am using Sphinx v2.1.3, with MySQL for Full Text Searching.

This installation was made using source code method.

Any ideas with why the issue might be occurring.

I am posting the link error details below:

https://www.scribd.com/document/352446756/Err

Logs are present for the data between crash & restart.