Bug#402511: Device nodes are not removed when devices are brought down

[Loïc Minier]

        Hi,

 I see you commented in #401393 linking to #402511.

On Thu, Jan 18, 2007, Frans Pop wrote:
> Further analysis in http://bugs.debian.org/406697 has shown that the 
> reason the /dev/dm-* devices are not removed, is the fact that udevd has 
> already been killed by the time the crypto and lvm scripts are run on 
> shutdown and thus the events created by the kernel are no longer 
> processed as they would be if the system was running normally.

 So what's happening in #402511 is that some process is working on all
 devices such as /dev/mapper/* and /dev/dm-*, when it processes
 /dev/mapper/*, it causes some devices to disappear in the kernel, but
 /dev/mapper/* nodes and /dev/dm-* are not removed by udev.

 This is IMO different from #401393 where the problem seems to be that
 lilo decides to call dm operations on device names such as "dm-0" but
 this is never supported; instead, either dm-0 should be converted to
 device-mapper names or operations should be done via major/minor (which
 is the patch I just proposed).

   Bye,
-- 
Loïc Minier <lool at dooz.org>