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Re: File descriptor leak in nested functions


From: Dennis Williamson
Subject: Re: File descriptor leak in nested functions
Date: Sun, 18 Apr 2010 00:33:05 -0500

For those who might be interested, here's a much simpler function that
exhibits the same kind of leak and doesn't involve nested functions.

fd_leaker() { while :; do read a < <(pwd); c=(/proc/$$/fd/*);
address@hidden; echo $c; done; }

For some reason, adding "(exit 0); " right before the "done" seems to
limit the creation of extra file descriptors.

The problem seems to be related to read and subshells.

On Sat, Apr 17, 2010 at 10:17 PM, Chet Ramey <address@hidden> wrote:

>
> Thanks for the report.  This will be fixed in the next release of bash.
>
> Chet
> --
> ``The lyf so short, the craft so long to lerne.'' - Chaucer
>                 ``Ars longa, vita brevis'' - Hippocrates
> Chet Ramey, ITS, CWRU   address@hidden    http://cnswww.cns.cwru.edu/~chet/
>
>




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