ZFS ghost files on 11.3-STABLE

[Alan Somers]

On Mon, Nov 25, 2019 at 10:01 AM Gareth de Vaux <stable at lordcow.org> wrote:

> Hi all, I deleted a file (rm filter) by mistake instead of its backup
> 'filter~',
> however it seems a remnant of a much older version of the file (given by
> its
> date and content) is half hanging around?
>
> $ ls -l filter
> ls: filter: No such file or directory
>
> $ ls -l filter*
> -rw-r--r--  1 lordcow  lordcow  18179 Mar 28  2019 filter
> -rw-------  1 lordcow  lordcow  19092 Nov 20 23:36 filter~
>
> $ stat filter
> stat: filter: stat: No such file or directory
>
> $ stat filter*
> 1525321853 1911959 -rw-r--r-- 1 lordcow lordcow 4294967295 18179 "Mar 28
> 17:07:34 2019" "Mar 28 17:08:07 2019" "Mar 28 17:08:07 2019" "Mar 28
> 17:07:34 2019" 18432 24 0x800 filter
> 1525321853 833819 -rw------- 1 lordcow lordcow 4294967295 19092 "Aug 10
> 22:31:53 2016" "Nov 20 23:36:40 2019" "Nov 24 23:08:13 2019" "Nov 20
> 23:36:40 2019" 19456 24 0x800 filter~
>
> $ cat filter
> cat: filter: No such file or directory
>
> $ cat filter*
> (cats both files)
>
> A zpool scrub returns no errors
>
> I haven't tried to overwrite the file yet incase anyone wants some output.
>
>
> FreeBSD 11.3-STABLE #0 r353939
>
> ZFS filesystem version: 5
> ZFS storage pool version: features support (5000)
>

Oh Lord Cow, is there a directory beginning with the word filter and
containing files named filter and filter~?  Do "ls -ld filter*".
-Alan