Internal error occured while parsing heap dump.

Hello,

I have a huge heap dump .hprof file (800 MB) in size and I tried to open it with memory analyzer in Eclipse. After parsing the file till 4%, I get internal error occurred. Java heap space. My system has 2GB memory. Below is the command I used to launch eclipse. Can someone help me with this ? Many thanks for your time.

C:\eclipse\eclipse.exe -vmargs -Xms512M -Xmx512M -XX:PermSize=256M -XX:MaxPermSize=256M

I have JRE 1.6.0_05-b13 installed on the system.

Thanks,

Hari