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Date:	Wed, 2 Jun 2004 14:22:58 -0400
From:	Wirawan Purwanto <wirawan AT camelot DOT physics DOT wm DOT edu>
X-X-Sender:	wirawan AT wp
To:	cygwin AT cygwin DOT com
Subject:	Re: New cygwin1.dll (1.5.10-3) causes problem (hang) with gnuplot
In-Reply-To:	<Pine.GSO.4.58.0406021254270.18478@slinky.cs.nyu.edu>
Message-ID:	<Pine.CYG.4.58.0406021420550.1768@wp>
References:	<Pine DOT CYG DOT 4 DOT 58 DOT 0406021203300 DOT 1768 AT wp> <Pine DOT GSO DOT 4 DOT 58 DOT 0406021254270 DOT 18478 AT slinky DOT cs DOT nyu DOT edu>
MIME-Version:	1.0

On Wed, 2 Jun 2004, Igor Pechtchanski wrote:

> On Wed, 2 Jun 2004, Wirawan Purwanto wrote:
>
> > I tried to debug the program with gdb, here's the result:
> >
> > /d/temp $ gdb /usr/bin/gnuplot
> > GNU gdb 2003-09-20-cvs (cygwin-special)
[snip]
> > (gdb) set args offending3.plt
> > (gdb) run
> > Starting program: /usr/bin/gnuplot.exe offending3.plt
> > ---Type <return> to continue, or q <return> to quit---
> > Showing multiplot
> >
> > Program received signal SIGSEGV, Segmentation fault.
> > ---Type <return> to continue, or q <return> to quit---
> > 0x7c5746b9 in KERNEL32!IsBadWritePtr () from /c/WINNT/system32/KERNEL32.DLL
> > (gdb) where
> > #0  0x7c5746b9 in KERNEL32!IsBadWritePtr () from /c/WINNT/system32/KERNEL32.DLL
>                     ^^^^^^^^^^^^^^^^^^^^^^
> This isn't your hang.  See
> <http://cygwin.com/ml/cygwin/2004-06/msg00057.html>.
> HTH,
> 	Igor
>
> > #1  0x610a92ed in cygwin1!__getreent () from /usr/bin/cygwin1.dll
> > #2  0x00000008 in ?? ()
> > #3  0x0022d588 in ?? ()
> > #4  0x610a9387 in cygwin1!__getreent () from /usr/bin/cygwin1.dll
> > (gdb)

I don't think the program hangs there. As for the KERNEL32 routine that
raises that exception, that looks so weird to me! I tried to follow CGF's
suggestion to just "continue" from that point. OK, I tried it. But it
doesn't get me anywhere. The exception gets called over and over,
many-many times that I gave up.

Wirawan

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