chflags on zfs (sappnd)

[Denise H. G.]

On 2010/11/17 at 18:49, George Mamalakis <mamalos at eng.auth.gr> wrote:
> 
> Hi everbody,
> from http://wiki.freebsd.org/ZFS I understand that chflags are
> supported by zfs. But if I have a file with sappnd on a zfs
> filesystem, I am unable to execute a command like this:
> 
> # touch lili
> # chflags sappnd lili
> # ls -lrto lili
> -rw-r--r--  1 root  wheel  sappnd 5 Nov 17 12:38 lili
> # echo "lala" >> lili
> # echo "lala" >> lili
> -su: echo: write error: Operation not permitted
> 
> So, the first time it worked, but it stops working on any consequent
> time (when the file is no more empty).
> I found a bug report on:
> 
> http://www.freebsd.org/cgi/query-pr.cgi?pr=149495
> 
> where a patch is suggested. Nevertheless, even though my sources are
> newer than the suggested patch, my source tree does not contain it.
> Do we know anything more about it?
> 
> # uname -a
> FreeBSD myhost 8.1-STABLE FreeBSD 8.1-STABLE #1: Fri Nov  5 17:27:37
> EET 2010     root@:/mnt/obj/mnt/src/sys/GENERIC  amd64
> 
> Thank you all for your time in advance,
> 
> mamalos
> 

I can't reproduce the warning message here. When I do the second 'echo',
nothing appeared. But the file content was unchanged.

I am using zfs version 15.

#uname -a
FreeBSD pluton.xbsd.name 8.1-STABLE FreeBSD 8.1-STABLE #0: Wed Nov 17
08:13:47 CST 2010
dhg at pluton.xbsd.name:/opt/obj/sysbld/usr/src/sys/pluton-amd64  amd64 




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