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Description of problem:
One of our customers that uses tmpfs on his 7.2 and 7.3 servers are
able to extract and uncompress in one go tar archives that are
compressed with gzip or bzip2. 

On his new Red Hat Enterprise Linux 2.1 ES system, running all the
newest errata and 2.4.9-e.35 kernel this is not the case. They recieve
errors from both bzip2 and gzip about compressed data being read from
a terminal. I'm not 100% certain as to the cause, but can replicate
the issue on any ES 2.1 system and also replicate having no issues on
any 7.3 system. 

Version-Release number of selected component (if applicable):
2.4.9-e.35

How reproducible:
Always

Steps to Reproduce:
1. Edit the /etc/fstab and add line 
none             /tmp                    tmpfs   noexec          0 0
2. mount -a to mount /tmp as a tmpfs filesystem, 'mount' and 'df' will
confirm this.
3. attempt to run 'tar -zxf foobar.tgz' or 'tar -jxf foobar.tar.bz2'
or 'tar -xvf foobar.tar.gz'
    

Actual Results:  As taken from an ES 2.1 system with all errata

[root@es21 tmp]# tar -xzf foo.tgz 
gzip: compressed data not read from a terminal. Use -f to force
decompression.
For help, type: gzip -h
tar: Child returned status 1
tar: Error exit delayed from previous errors
[root@es21 tmp]# 
[root@es21 tmp]# tar -jxf foo.tar.bz2 
bzip2: I won't read compressed data from a terminal.
bzip2: For help, type: `bzip2 --help'.
tar: Child returned status 1
tar: Error exit delayed from previous errors
[root@es21 tmp]# 

Expected Results:  As taken from a 7.3 system with all errata 

[root@73 tmp]# tar -xzf foo.tgz
[root@73 tmp]# 
[root@73 tmp]# tar -xzf foo.tar.bz2
[root@73 tmp]# 

Additional info:

See attachment for copy/paste output showing this.