RE: gzip zombie / spawned from init

[Chad Kitching]

From: Nico Schottelius
>
>Well, wait waitpid(-1, ...) cannot be used, as there are many other
>children (the system is booting up at the time the gzip process
>becomes a zombie).
>
try waitpid(-1, &status, WNOHANG)

You will need to implement this in your replacement init because 
one of init's jobs is to wait on unparented zombie tasks.  In the 
sysvinit package, see chld_handler() in init.c which handles the 
SIGCHLD signal.

Basically, I believe all you need to do is waitpid() in the SIGCHLD
handler until you get a 0 return code.
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