bitcoin-qt exits with 137

[noddingtor]

(Updated with better description.)

When I run bitcoin-qt 0.9.0 inside of a VirtualBox virtual machine it always crashes within about 30 minutes.

So, in order to glean some info regarding the nature of the crash, I called it from a terminal window as follows:
bitcoin-qt; echo $?

And when it crashes it returns the following:
Killed
137

I'll try to look through the source code to see if I can figure out what a return code of 137 means.

(My VirtualBox environment is set up so that both the guest OS and the host OS are Ubuntu 12.04.4.)


I'm not sure if this helps, but when I look inside of ~/.bitcoin/debug.log
I saw a couple of different messages that might mean something.

First, I saw this quite a bit throughout the file:  ERROR: ProcessBlock() : already have block
Then, I saw this near the end of the file:  ProcessBlock: ORPHAN BLOCK

When I run bitcoin-qt in the *host* OS I have no problems, but I'm trying to isolate things from each other for security.

Any ideas on what I'm doing wrong? Thanks.

[cp1]

Is it something simple like you didn't allocate enough home drive space?