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List:       gnuplot-info-beta
Subject:    Re: A pm3d crash
From:       Alexander Mai <st002279 () HRzpUB ! tu-darmstadt ! DE>
Date:       2000-11-23 16:47:37
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On Thu, Nov 23, 2000 at 02:41:44PM +0100, Hans-Bernhard Broeker wrote:
> On Thu, 23 Nov 2000, Alexander Mai wrote:
> 
> > I have another pm3d crash (alpha-linux).
> [...]
> > (gdb) p scanA->points[0]
> > $6 = {type = UNDEFINED, x = -10, y = -10, z = 3.8107283263735346e-320, 
> >   ylow = 2.3885325390423326e-314, yhigh = 2.1219957914099314e-313, 
> >   xlow = 2.3885325627574836e-314, xhigh = 0}
> 
> It's relatively obvious what's happening here: see that UNDEFINED tag
> in the type field? This point shouldn't ever have been sent to
> map3d_xyz().

Well, 'obvious' perhaps, nothing which I could fix in a few seconds though ...

But I have another crash with pm3d/X11 (well, seems we need some debugging
on this issue!!).

A segfault:
(gdb) bt
#0  UpdateWindow (plot=0x0) at gplt_x11.c:1657
#1  0x804e0e7 in process_event (event=0xbffff318) at gplt_x11.c:2782
#2  0x804a09b in mainloop () at gplt_x11.c:689
#3  0x8049e20 in main (argc=1, argv=0xbffff494) at gplt_x11.c:557

I'll fix this and about 3 similar ones which could triggered by the same mechanism.
(at a first glance; I did not analyse further. As mentioned earlier
I'd like an gplt_x11 expert to review my chnages from this week some
time ...)

-- 
Alexander Mai
st002279@hrzpub.tu-darmstadt.de

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