Raspbian Crashes No SSH or Apache

[smitty]

I have a Raspberry Pi B+ running a NOOBS copy of Raspbian. The Pi is controlling my condo's furnace and fan using a Sainsmart Relay. I also have a SainSmart DHT22/AM2302 Digital Temperature Humidity Measurement Sensor connected to the Pi. The Pi is running a few python scripts that act as the thermostat/calculate analytics. The Pi is also running Apache/MySQL and a SSH server. The Pi is connected to my network using an ethernet cable.

My Pi has been my thermostat for a few weeks. A week or so ago I woke up and the furnace was on with the temperature being over the set target, SSH and Apache weren't responding. I looked at the monitor and there were a bunch of errors. This morning the same thing happened and then again tonight SSH, Apache and my thermostat scripts were all locked up. This time I took a picture of the monitor with the errors. Each of the 3 times that the Pi went unresponsive the furnace was on. The relay that switches the furnace and fan on is Active Low.

Attached is a picture of the error message and a link to the full size picture
https://drive.google.com/file/d/0B9MzyF ... sp=sharing

Raspbian Error pic

IMG_1897.JPG (46.78 KiB) Viewed 382 times