>
> > >
> > > If someone is interested to solve a problem:
> > >
> > > $ dd if=/dev/zero bs=8848 count=1 of=a 2>/dev/null
> > > $ cp a b
> > > $ cmp a b 0 0x300
> > > Segmentation fault (core dumped)
> > > $ cmp a b 0 0x200
> > > cmp: EOF on b
> > > $ cmp a b 0x300 0
> > > cmp: EOF on a
> > >
> > > Jean-Marc
> > >
> >
> > I've seen a similar problem when doing cmp with CD-ROM
> > devices (I believe I entered a PR on it.)
> >
> > I think the problem has to do with cmp's use of mmap(), and
> > potential issues there... But, that's just a guess on my part.
>
> It has to do with mmap(), but not any specific issues with mmap(), just a
> bug in its use.
>
> If noone has any objections, I will commit this and MFC it in a week or so.
When I get into work today, I can apply your change and see if it
fixes my problem as well.
If it works, then, we can close the PR I entered on it... (kern/11969).
- Dave Rivers -
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