Bug#504116: [etchnhalf] RAID1 broken after upgrading kernel to 2.6.24-etchnhalf

[Jonathan Nieder <jrnieder@gmail.com>]

Hi Olaf,

In October, 2008, Olaf Zaplinski wrote:

> upgraded from 2.6.18 to 2.6.24-etchnhalf on i686 machine, afterwards
> all my RAID1 volumes were broken:
[...]
> Reason: /dev/hda is running fine (PIIX4), but /dev/sda on 53c875 is missing in the RAID setup.
> It is accessible:
>
> binky:~# fdisk -l /dev/sda
>
> Disk /dev/sda: 4335 MB, 4335206400 bytes
> 255 heads, 63 sectors/track, 527 cylinders
> Units = cylinders of 16065 * 512 = 8225280 bytes
> [--snip--]
>
> but the RAID setup is broken.

Sorry we lost track of this before.  Before investigating further, a
few questions:

 - do you still have access to this machine?
 - if so, how are you coping?  What kernel do you use?
 - any workarounds or other weird observations?

Thanks and sorry for the trouble,
Jonathan