can't zip large files 2gb >

[dex]

Check for root kits?

Try the same operation on a known working system, take that output
file and do a diff with that and the corrupt one after a 'strings', so
'strings new.gz > new-text', 'strings corrupt.gz > corrupt-text',
'diff new-text corrupt-text'.  I'm just interested in how it's being
corrupted and maybe the strings output will tell you something.

Sorry if this was specified before, but did this just start happening
or is this the first time you've tried to gzip large files on this
system?