[Bug 11171] New: gzip compression levels broken since 2018-01-30 revision

bugzilla at busybox.net bugzilla at busybox.net
Tue Jul 24 13:27:11 UTC 2018


https://bugs.busybox.net/show_bug.cgi?id=11171

            Bug ID: 11171
           Summary: gzip compression levels broken since 2018-01-30
                    revision
           Product: Busybox
           Version: 1.29.x
          Hardware: All
                OS: All
            Status: NEW
          Severity: major
          Priority: P5
         Component: Standard Compliance
          Assignee: unassigned at busybox.net
          Reporter: osm0sis at outlook.com
                CC: busybox-cvs at busybox.net
  Target Milestone: ---

gz archives are still valid or I'd mark this critical/blocking, but hopefully
it can be resolved and added to 1.29.x.

gzip doesn't seem to be using a default level of -6 anymore, and -1 and -9
produce an archive of the same size starting in 1.29.0. I reverted the new gzip
commits one-by-one and
https://git.busybox.net/busybox/commit/?id=c6d2a26fac47eafc08f291dab78bbca3088f8ca2
is the commit causing it.

I believe this is a global issue and not config/compile-specific since it
affects my patched NDK builds as well as another developer's uClibc builds.

E.g. 28mb ramdisk.cpio -> 11.2mb ramdisk.cpio.gz in 1.28.4, is now 20mb in
1.29.1 and is 20mb regardless of -1 or -9.

Thanks!

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