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Date: Mon, 12 Jun 2006 13:11:54 -0400 (EDT)
From: Igor Peshansky <pechtcha AT cs DOT nyu DOT edu>
Reply-To: cygwin AT cygwin DOT com
To: Thomas SMETS <smetsthomas AT yahoo DOT com>
cc: cygwin AT cygwin DOT com, thomas DOT baker AT bi DOT fhg DOT de
Subject: Re: Re : Re: Memory error with PDKSH 5.2.14-3?
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Ugh, top-posting...  Reformatted.

On Mon, 12 Jun 2006, Thomas SMETS wrote:

> From: Igor Pechtchanski <pechtcha at cs dot nyu dot edu>
> To: Thomas Baker <thomas dot baker at bi dot fhg dot de>
> Cc: cygwin at cygwin dot com
> Date: Mon, 6 Jun 2005 10:26:26 -0400 (EDT)
> Subject: Re: Memory error with PDKSH 5.2.14-3?
>
> > On Mon, 6 Jun 2005, Thomas Baker wrote:
> >
> > > Just wanted to report that I was seeing error messages such as the
> > > following in Korn shell scripts:
> > >
> > >      /home/tbaker/u/bin/urlists[50]: internal error: alloc: freeing
> > >      memory outside of block (corrupted?)
> > >
> > > By running the scripts in debug mode (set -x), I found that
> > > the problem seemed to occur when declared functions (i.e.,
> > > declared within the script) were invoked multiple times.
> > > The functions would work at first, then stop working --
> > > as if the functions somehow ate up the available memory.
> > >
> > > Since rolling back from 5.2.14-3 to 5.2.14-2, the problem
> > > seems to have gone away.
> > >
> > > I am not a programmer and do not have time to test this
> > > systematically but thought others on this list might want
> > > to hear about this.
> >
> > Thanks for the report.  However:
> >
> > I have no hope of reproducing this, do I?
> >
> > AFAICS, the few changes from 5.2.14-2 to 5.2.14-3 that could have possibly
> > caused this are the fixes in the autoconf files.  I doubt the "struct
> > option" magic would matter, but it's possible, I guess, though by
> > eyeballing the code the two versions do look functionally equivalent.
> >
> > It would help to have a script that demonstrates the problem.  I can't do
> > anything otherwise, sorry...
> >
> > Igor Pechtchanski, the Cygwin pdksh volunteer maintainer
>
> One year later .... (with the same/latest version)
> Using :
>     set -x
>     set -v
> in a script generates a similar error around line 50whatever code I put
> in the script

Did you even read my reply to the OP?  I cannot reproduce this without a
complete testcase.  Since I cannot reproduce this, there is no way I can
fix this.  Unless someone provides a complete testcase that exhibits this
behavior, this problem will remain unfixed.

Igor Peshansky, the Cygwin PDKSH volunteer maintainer
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha AT cs DOT nyu DOT edu | igor AT watson DOT ibm DOT com
ZZZzz /,`.-'`'    -.  ;-;;,_		Igor Peshansky, Ph.D. (name changed!)
     |,4-  ) )-,_. ,\ (  `'-'		old name: Igor Pechtchanski
    '---''(_/--'  `-'\_) fL	a.k.a JaguaR-R-R-r-r-r-.-.-.  Meow!

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