Blank file

Hi!

I've have encountered a rare bug/condition in .net. I have not ruled out
logic error yet but that seems unlikely at this point.

I have a service that keeps a bunch of data in memory and writes a copy of
this data about every five minutes to a xml file. The code have been running
for about two years (been restarted at least every month) in about a hundred
instances.

But at two occasions the files have been filled with ascii char 0 for the
full length of the file, and after that the service has crashed. Not just
one instance, but all of them, even running in different
app-pools/processes.

Other observations from the server its running on is that it has low memory
(<200 MB free) and high cpu usage (60-80% constantly).

Any ideas or crazy guesses?


Thanks

Johan