From:	"Michael Allison" <michael DOT allison2 AT sympatico DOT ca>
Newsgroups:	comp.os.msdos.djgpp
References:	<10102261811 DOT AA12134 AT clio DOT rice DOT edu>
Subject:	Re: Eradicating djgpp W2000 problem
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Date:	Sun, 04 Mar 2001 20:30:08 GMT
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To:	djgpp AT delorie DOT com
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"Charles Sandmann" <sandmann AT clio DOT rice DOT edu> wrote in message
news:10102261811 DOT AA12134 AT clio DOT rice DOT edu...
> > > The crashes occur "randomly" - by that I mean if you run the exact
same
> > > sequence 10 times it may work 9 times out of 10.
> > >
> > > I also observed once (I believe... hard to be sure when you only see
it once)
> > > a crash in GCC alone - only a single nesting.
> >
> > Thanks.  Could you please tell what programs did you invoke?  Was that
> > GCC from Make, or something else?
>
> GCC from the command line (CMD.exe) crashed the VDM once if I remember
> correctly.  Usually I was seeing lots of crashes running make, which then
> calls GCC.  We tried patching make to not hook interrupts, or to toggle
> exceptions - none of which seemed to help.
>
> I did some playing with trying to "go32 gcc" and "go32 make" to add
> additional nesting levels and got interesting results I don't remember
> and couldn't explain.

Eli, you've made references to a special djgpp method used to pass
really long command lines between djgpp programs such as make and gcc.
Could the cause of this be in that code?

When I run the test "nesting" program that I posted earlier in the
thread (parent.c), separate processes are created for each under
windows 2000:
    1160 NTVDM.EXE
    1284 parent.exe
     332 parent.exe
    1388 parent.exe
Could you point me to some place that explains how this long
command line sharing is done?  I'm wondering if some sort of
process boundary or memory protection is being violated.

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