Re: [Nbd] oops with timeout option on debian wheezy kernel

[Michal Belczyk <belczyk@...1274...>]

On Mon, Feb 10, 2014 at 01:06:07PM +0100, Hermann Lauer wrote:
> Dear nbd kernel maintainers,
> 
> according to a mail from 21 July 2011 (http://comments.gmane.org/gmane.linux.drivers.nbd.general/985)
> this is due to the ioctl(nbd, NBD_SET_TIMEOUT, timeout) not working.
> 
> Here on debian wheezy (Linux www1 3.2.0-4-amd64 #1 SMP Debian 3.2.46-1+deb7u1 x86_64 GNU/Linux) a disconnection of the server host yields hanging
> of any "cat /proc/mdstat" on the raid1 on top of the nbd device
> and to the appended oops (only two shown) of the kernel. Only
> bringing back the nbd server allows further commands on the md device.
> 
> Any news/ideas on that subject ?

No code has been pushed upstream to fix it since then...

You may want to take a look here:

  https://www.mail-archive.com/nbd-general@lists.sourceforge.net/msg01513.html
  https://www.mail-archive.com/nbd-general@lists.sourceforge.net/msg01549.html

I will post the patch against the most recent tip later this week.

-- 
Michal Belczyk Sr.