On Mon, 29 Jun 2020 at 16:31, Staffan Thomén <d...@shangtai.net> wrote: > > Michael van Elst wrote: > > mlel...@serpens.de (Michael van Elst) writes: > > > >> mlel...@serpens.de (Michael van Elst) writes: > >>> ci4...@gmail.com (Chavdar Ivanov) writes: > >>>> # ccdconfig -c ccd0 0 /dev/zvol/dsk/pail/nbsd1 > >>>> ccdconfig: ioctl (CCDIOCSET): /dev/ccd0d: Inappropriate ioctl for device > > > >> That's a bug in the zfs driver. > > > > I've prepared a patch for -current that fixes this issue. > > > > http://ftp.netbsd.org/pub/NetBSD/misc/mlelstv/zvol.patch > > > > I had occasion to try this patch (downloaded on June 19) on my Xen dom0 today, > and things didn't go well; > > # ccdconfig -c ccd0 0 /dev/zvol/dsk/internal1/photos@backup
You are mapping a snapshot, it will be r/o. You have to promote it first. > ccdconfig: ioctl (CCDIOCSET): /dev/ccd0d: Read-only file system > > ...and a subsequent... > > # ccdconfig -g > > ...instantly rebooted the system (no crash dump). I wasn't monitoring the > console so I don't know if any error was printed by the kernel. Nothing was > recorded in syslog. > > This is NetBSD 9.0_STABLE from June 19 (built at the same time as the patched > z, with xen 4.11 (4.11.3nb2) > > Staffan > > -- ----
