GsFile doesn't use 64 bit file I/O
The GemStone Smalltalk class GsFile does not use 64 bit system file
I/O, so GsFile operations on files larger than 2 GB will fail.
In most cases, the failure will manifest itself as methods returning
nil, such as when trying to open or get the status of a file
(GsFile>>openReadOnServer:, GsFile>>sizeOf: or
On Linux, trying to write a file beyond the 2 GB boundary will cause
the gem process to dump core.
This bug only applies to GsFile. GemStone properly handles large
database files (tranlog, extent and backup files).
Use System(C)>>performOnServer: to invoke operating system shell
commands to check status of large files. Do not attempt to write
large files with GsFile.