[dm-devel] write directly to device mapper snapshot origin device ?

[Navin P.S]

Resend ..

On Thu, Jul 14, 2016 at 7:55 PM, Navin P.S <navinp1912 at gmail.com> wrote:
> Hi,
>   Can i do dd if=/dev/zero of=/dev/mapper/dmo count=20 ? where dmo is
> a dm snapshot origin created through dmsetup command. Instead of
> /dev/zero i can write valid devices.
>
> I could create the dmo through some lvm2 commands. Is direct write
> with 4k (page size values ) allowed when it is mapped to 2 block
> devices in linear mode ?
>
>
> Regards,
> -- Navin

I'm seeing  OOM followed by reboot of host machine.
Does this mean this device cannot to exported to containers for writing ?


-- 
-- Navin