tcsh being dodgy, or pipe code ishoos?

[Andrey Chernov]

On Tue, Jun 24, 2003 at 18:54:11 -0500, Juli Mallett wrote:

> stdout.  Where does stderr come into it?  Yes I know about TTY races

Forget about stderr, it looks like fork race somewhere. Minimal example 
will be

( ( echo 2 ; echo 3 ) | xargs -I% echo + % )

which outputs

+ + 3
2

in rare cases. Note that 

( echo 2 ; echo 3 ) | xargs -I% echo + %

never pruduce this bug, so no pipes involved, just ()