Created attachment 64079 [details]
Short sampling of a 

Version:           unspecified (using KDE 4.7.1) 
OS:                Linux

Turned on the computer and noticed that nepomukstub and nepomukservice were taking up 98% of the CPU time. After 5 hours I was notified that I had 20MBs left on the Drive. I cleaned up some space and in a few minutes was notified I had 18 MBs left. Discovered that ~/.xsessionerrors was taking up multiple GBs of space with a large number of Akonadi and Nepomuk entries.

Reproducible: Didn't try

Steps to Reproduce:
For my computer it would be turn on Nepomuk. 

Actual Results:  
Within a few hours a empty harddrive except for one large error file

Expected Results:  
None expected currently

I'm making this post mostly to offer a 250 MB tarball that expands to a 61 GB error file if anyone wants to go though the data there. I've made a short log of the top and bottom 2000 lines of the file. 
If anyone would like the full file please respond to this or mail me.
I will not take any offense of this being closed with a WONTFIX once I know if the log file will be of use to anyone.

I'll say the short log I have used may not be the best sampling since I suspect the start is before Nepomuk kicked in and the end may have a number of lines that were generated once I disabled Nepomuk to stop other services failing from lack of HDD space. 

If this would be more applicable to Akonadi please direct it to whoever would be best able to benefit from the information.