Re: Re : Re: Memory error with PDKSH 5.2.14-3?

[Igor Peshansky <pechtcha at cs dot nyu dot edu>]

<http://cygwin.com/acronyms/#PPIOSPE>.  Thanks.
I set the Reply-To: header in my messages -- please make sure your mailer
respects it.  Redirecting this reply back to the list.

And <http://cygwin.com/acronyms/#TOFU> reformatted.

On Mon, 12 Jun 2006, duvelbier-tsmets wrote:

> ----- Original Message ----
> From: Igor Peshansky <>
> To: Thomas SMETS <smetsthomas@XXXXX.XXX>
> Cc: cygwin@XXXXXX.XXX; thomas.baker@XX.XXX.XX

<http://cygwin.com/acronyms/#PCYMTNQREAIYR>.  Thanks.

> Sent: Monday, June 12, 2006 7:11:54 PM
> Subject: Re: Re : Re: Memory error with PDKSH 5.2.14-3?
>
> > 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
>
> No hard feeling...
> I didn't even know you where the maintainer

Heh?  I only signed the original message you replied to with that
phrase...

> I will look to do so from home ...
> Attached is the version of the file generating the problem ... @ work
> I have some troubles with my internet provider lately but I should be
> able to answer yr question 'round thrusday I hope on skype, if you
> want... With the time lag, I will be able to do so from home :)

Thanks for the testcase.  I'll look into it.
	Igor
-- 
				http://cs.nyu.edu/~pechtcha/
      |\      _,,,---,,_	    pechtcha@cs.nyu.edu | igor@watson.ibm.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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