Bug#573490: drbd fails to load: "drbd: disagrees about version of symbol cn_add_callback"

[Tomas Pospisek <tpo_deb@sourcepole.ch>]

Dann,

sorry for replying late - I just installed the new drbd8 modules:

  Setting up drbd8-modules-2.6.26-2-686 (2.6.26+8.0.14-6+lenny3) ...
  Setting up drbd8-modules-2.6-686 (2:2.6.26-6+lenny3) ...
  Setting up drbd8-utils (2:8.0.14-2+lenny1) ...

together with the latest lenny4 kernel:

  Setting up linux-image-2.6.26-2-686 (2.6.26-21lenny4)

and can confirm that they work again, and that the new drbd also works 
together with the previous lenny versions of the kernel and of drbd - 
namely with:

  drbd8-modules-2.6.26-2-686 (2.6.26+8.0.14-6+lenny1)
  linux-image-2.6.26-2-686 (2.6.26-21lenny3)

> From my log:

  ... drbd0: conn( SyncSource -> Connected ) pdsk( Inconsistent -> UpToDate )

Thanks a lot!!!!!!!!!!!!!!

I guess then that kernel linux-image-2.6.26-2-686 (2.6.26-21lenny4) should 
be conflicting with the previous, incompatible drbd package
<= drbd8-modules-2.6.26-2-686 (2.6.26+8.0.14-6+lenny3) in order to force 
an upgrade to a compatible drbd package?

Thanks again,
*t

On Thu, 11 Mar 2010, dann frazier wrote:

> tags 573490 + patch
> affects 573490 drbd8-source
> thanks
>
> On Thu, Mar 11, 2010 at 02:38:23PM -0700, dann frazier wrote:
> > On Thu, Mar 11, 2010 at 09:43:45PM +0100, Tomas Pospisek wrote:
> > > Package: linux-2.6
> > > Version: 2.6.26-21lenny4
> > > Severity: critical
> > >
> > > drbd fails to load and there goes my failover high available cluster...
> > > *t
> >
> > well, crap - we ignored that ABI change because google showed only an
> > old/deprecated module as an out-of-tree user, but we obviously missed
> > drbd. We'll work on an update to the drbd modules.
>
> This patch builds for me, but I don't have a drbd setup. I'd
> appreciate it if someone could test it :)