strange behavior of restore(8)

[Robert Bonomi]

> From owner-freebsd-questions at freebsd.org  Mon Oct 24 09:14:25 2011
> Date: Mon, 24 Oct 2011 21:14:04 +0700
> From: Victor Sudakov <vas at mpeks.tomsk.su>
> To: freebsd-questions at freebsd.org
> Subject: Re: strange behavior of restore(8)
>
> Warren Block wrote:
> > 
> > >Lo and behold! On an amd64 system with 8GB RAM and 2 2.66GHz Xeon
> > >CPUs, "restore -rNf home.dmp" has successfully completed after 3 hours
> > >15 minutes.
> > 
> > What are the specs for the system that wrote the dumpfile originally 
>
> 8.2-RELEASE-p3 amd64, 8GB RAM and 2xXeon 2.66GHz
>
> > and the system that couldn't restore it?
>
> FreeBSD 6.4-RELEASE-p10 i386, 256M RAM, Pentium II 350.80MHz (yes,
> it's pretty old).

*WITHOUT* checking, I'm willing to bet that _that_ is the problem.

An O/S limit on the size of a _file_ -- a 32-bit 'offset' type. 
And a 'large' file in the dump.