How to free used Swap-Space? (from errno=8)

[Konstantin Belousov]

On Tue, Sep 22, 2020 at 09:11:49PM +0200, Peter wrote:
> So what happens then is this:
> 
> $ file scc.e
> scc.e: ELF 32-bit LSB executable, Intel 80386, version 1
> (FreeBSD), dynamically linked, interpreter /libexec/ld-elf.so.1,
> for FreeBSD 9.3 (903504), stripped
> 
> $ ./scc.e
> ELF interpreter /libexec/ld-elf.so.1 not found, error 8
> Abort trap
> 
> And this will cost about some (hundred?) kB of swapspace every time it
> happens. And they do not go away again, neither can the concerned jail
> do fully die again.
In what sense it 'costs' ?

Can you show exact sequence of commands and outputs that demostrate your
point ?  What type of filesystem the binaries live on ?

I want to reproduce it locally.