Date: Tue, 1 Jul 1997 19:24:05 +0300 (IDT)
From: Eli Zaretskii <eliz AT is DOT elta DOT co DOT il>
To: Molnar Laszlo <molnarl AT cdata DOT tvnet DOT hu>
cc: djgpp-workers AT delorie DOT com, Daisuke Aoyama <jack AT st DOT rim DOT or DOT jp>
Subject: Re: Memory leak in bash
In-Reply-To: <33B917F7.45B3326B@cdata.tvnet.hu>
Message-ID: <Pine.SUN.3.91.970701192041.25924A-100000@is>
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I have two comments about this:

	1) Whatever the reasons for this phenomenon, it also exists in 
the official port on SimTel.NET, so it's not new in bashb9.

	2) Why are you so sure it's a memory leak?  It can be just a 
result of known deficiencies in `malloc' and friends.  The fact that Bash 
requests more and more core from the DPMI host doesn't necessarily mean 
that it itself leaks memory (although it might).

On Tue, 1 Jul 1997, Molnar Laszlo wrote:

> Hi Workers!
> 
> I think I've found a bug in the latest bash (bashb9.zip).
> When I run the file test0.sh with "sh test0.sh", I get:
> 
> DPMI memory available: 22923 Kb
> DPMI swap space available: 129297 Kb
> DPMI memory available: 22911 Kb
> DPMI swap space available: 129309 Kb
> DPMI memory available: 22911 Kb
> DPMI swap space available: 129309 Kb
> DPMI memory available: 22911 Kb
> DPMI swap space available: 129309 Kb
> DPMI memory available: 22903 Kb
> DPMI swap space available: 129317 Kb
> DPMI memory available: 22887 Kb
> DPMI swap space available: 129333 Kb
> DPMI memory available: 22811 Kb
> DPMI swap space available: 129217 Kb
> DPMI memory available: 22491 Kb
> DPMI swap space available: 129025 Kb
> DPMI memory available: 21235 Kb
> DPMI swap space available: 128617 Kb
> DPMI memory available: 16235 Kb
> DPMI swap space available: 127345 Kb
> DPMI memory available: 119251 Kb
> DPMI swap space available: 0 Kb
> 
> As you can see at the last step all of my 22 MB physical memory is full.
> Why is this?
> 
> bye, Laszlo
> 
> ps: I've found this problem in perl5.004's Configure script.
> 
> Here are the 3 test files:
> 
> *--test0.sh----*
> go32-v2 | grep DPMI
> 
> for i in 1 2 3 4 5 6 7 8 9 10
> do
>     . ./test1.sh         # if you change this line to "sh ./test1.sh"
>     go32-v2 | grep DPMI  # then there is no problem!
> done
> *--eof---------* 
> 
> *--test1.sh----*
> . ./test2.sh
> 
> cat >x <<ENDEND
> blah-blah
> ENDEND
> *--eof---------*
> 
> *--test2.sh----*
> cat >x <<ENDEND
> blah-blah
> ENDEND
> *--eof---------*
> 
>