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List:       ast-developers
Subject:    Re: [ast-developers] Re: ast-ksh.2012-05-18 failures in "arith.sh" when under valgrind control...
From:       Roland Mainz <roland.mainz () nrubsig ! org>
Date:       2012-06-27 14:53:39
Message-ID: CAKAoaQneKTZ26dzZRDT8TwOPbSOzmgGG10S-kEYZ+6KueVv=iA () mail ! gmail ! com
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On Wed, Jun 27, 2012 at 4:48 PM, David Korn <dgk@research.att.com> wrote:
> cc: ast-developers@research.att.com
> Subject: Re: [ast-developers] Re: ast-ksh.2012-05-18 failures in "arith.sh" when  \
>                 under valgrind control...
> --------
> 
> > Attached (as "ksh_valgrind_arith_sh_compound_var_arithmetic_failed.sh.txt")
> > is a test script (derived from the "arith.sh" test module) which fails
> > when running ast-ksh.2012-05-18 on SuSE 12.1/AMD64 under valgrind
> > control like this:
> 
> 
> If the script runs without valgrind, then doesn't this mean that this
> is a valgrid problem?  Isn't valgrind is supposed to report errors, not change
> the results?

I'm not sure... technically it's both possible that this is either a
ksh93 bug _and_/_o_r/_xor_ a valgrind bug. I've already poked the
valgrind people to have a look (techncally $ valgrind --tool=none ...
# should be a no-op, e.g. change anything in the application which is
being tested. There are very rare exceptions... and that's what I'm
checking right now).

----

Bye,
Roland

-- 
  __ .  . __
 (o.\ \/ /.o) roland.mainz@nrubsig.org
  \__\/\/__/  MPEG specialist, C&&JAVA&&Sun&&Unix programmer
  /O /==\ O\  TEL +49 641 3992797
 (;O/ \/ \O;)

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