So, out of nowhere my 2009 MacBook (2,66 GHz Core 2 Duo, 8 GByte aftermarket ram) started freezing after 200+ days of uptime (sleep time included of course). I had installed a Crucial CT256M4SSD2 256Gbyte SSD a year and a half ago and were quite happy with system stability.
Now these logs appear quite often before freezing my machine completely:
disk0s2: no such device disk0s2: media is not present
Here is a photograph of such a log (original, larger sized photo here):
The reason I had to do a photo is, of course, because disk0s2 is my harddrive and at the moment of logging it was apparently gone - so no persistent logs for me.
I tried a diagnose and repair with the Disk Utility, but it found nothing and the problem persisted. Uninstalled a couple of apps, but also to no avail. Any advice on how to proceed with diagnosing the problem would be much appreciated.