Bug 66009

Summary:	gzip has issues for files larger than 4GB...
Product:	Base System	Reporter:	Peter Losher <Peter_Losher>
Component:	amd64	Assignee:	freebsd-amd64 (Nobody) <amd64>
Status:	Closed FIXED
Severity:	Affects Only Me
Priority:	Normal
Version:	5.2.1-RELEASE
Hardware:	Any
OS:	Any

Description Peter Losher 2004-04-27 01:50:25 UTC

After compressing a 2GB file on a amd64 system, decompressing it throws up an error:

gunzip: test1.gz: invalid compressed data--format violated

This also may be a issue on other 64-bit platforms in general, but I don't have FreeBSD on any of that hardware to test this on.

Fix: 

Apply patch from the GZip developers:
http://www.gzip.org/4g-patch.tar

or this patch from the amd64 list:
http://marc.10east.com/?l=freebsd-amd64&m=108277176430545&w=2
(Thanks to Tim Robbins)
How-To-Repeat: Compress a 4GB+ file on a amd64 system and then gunzip it.

Comment 1 David E. O'Brien freebsd_committer

2004-05-03 00:08:33 UTC

State Changed
From-To: open->closed

believed fix by commit to gzip.h.