Re: possible bug in libXt or libXaw

[Marco Atzeri <marco dot atzeri at gmail dot com>]

On 11/16/2014 7:30 AM, Mark Geisert wrote:
> Marco Atzeri writes:
> > this is the pointer causing the segfault
> >
> > (gdb) p form->form.horiz_base
> > $2 = (Widget) 0x6275705f6779632f
> >
> > while similar pointers have a much smaller address,
> >
> > (gdb) p w
> > $5 = (Widget) 0x60014bd50
> >
> > so it that an assignment not clearing the upper
> > portion of the pointer.
>
> $2 is not a pointer that needed partial clearing, it's a character string
> "/cyg_pub".  Possibly a buffer overrun somewhere?  Hope the string fragment
> points the way to somebody.
>
> ..mark

thanks for the hint,  "/cyg_pub" is a directory on the root

 $ ls -l / |grep pub
lrwxrwxrwx   1 marco          Administrators     19 Jun 26 19:11 pub -> 
/cygdrive/e/cyg_pub

where the data file was stored,
however moving it to "/tmp" produce as result

 p ref
$1 = (Widget) 0x635f7261636e5f62 aka c_racn_b

that is not very meaningful to me, so the pointer corruption
can be very generic.

Marco




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