Robert D. Scott wrote:
CygWin under windows. The file size was in the original post, and is 500Mb. It does appear to be file size related, as I did use editcap and cut the file into quarters and was able to extract just the conversation I was interested in. The cap was taken from vendor's hardware that has a dumbed down capture utility that does not allow a capture filter.
Please see: http://wiki.wireshark.org/KnownBugs/OutOfMemory