a bug with option z (compress) when write to a tape

[khanhxn]

To whom it may concern,

I use gnu-tar to write/read data to local/remote tape
drive without any problem:
   % tar cf /dev/rmt/0 test_dir
   % tar cf remote_machine:/dev/rmt/0 test_dir
   % tar xf /dev/rmt/0
   % tar xf remote_machine:/dev/rmt/0 

I have no problem (or no error message) when write to
a tape in compress mode.
   % tar czf /dev/rmt/0 test-dir
   % tar czf remote_machine:/dev/rmt/0 test_dir

However I get the following error messages when I try
to extract in compress mode at a local machine:
  zip: stdin: decompression OK, trailing garbage      
            ignored
  tar: Child returned status 2
  tar: Error exit delayed from previous errors

  when using command: 
  % tar xzf /dev/rmt/0

  notes: In a few tests, I could get all data from    
              tape. 

On a remote machine the tar proccess hangs forever
when 
using
  % tar xzf remote_machine:/dev/rmt/0

   notes: data losts when I kill the proccess

Notes: two machines: a linux with Redhat 7.0 and a Sun
workstation with Solaris 2.6 with 8mm tape drive.
  

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