[ksh93-integration-discuss] command substitution, exec, and stdout redirection cause allocation loop

[Roland Mainz]

David Powell wrote:
>    The following one-liner (including back ticks) causes ksh93 to spin
>    out of control consuming all memory at a *very* rapid pace:
> 
>      `exec program > file`
> 
>    If "file" is a real file (as opposed to /dev/null), the file will
>    also grow without bound.  "program" need not exist, i.e.
> 
>      `exec > file`
> 
>    has the same result.  Using $() instead of `` also has the same
>    effect.
> 
>    This works fine under all other bourne-compatible shells.
> 
>    (I've filed this as bug 6687139.)

Fixed with yesterday's putback for
http://bugs.grommit.com/show_bug.cgi?id=468 ('Need patch for endless
memory allocation loop for "$(exec no_such_program > real_file)"') - see
attached commit message.

----

Bye,
Roland

-- 
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From: bugzilla-daemon at np.grommit.com
Subject: [Bug 468] Need patch for endless memory allocation loop for "$(exec
	no_such_program > real_file)"
Date: Fri, 11 Apr 2008 11:45:40 -0700 (PDT)
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