Re: [-v3 PATCH 0/3] Persistent device name using alias

[Tejun Heo <tj@kernel.org>]

(cc'ing Kay)
Hello,

On Sat, Aug 27, 2011 at 07:15:25PM +0900, Nao Nishijima wrote:
> Our concern is the failure analysis. For example, when the disk failure
> happened, we need to identify the disk from kernel log.
> 
> Kernel messages are output to serial console when kernel crashes.
> It's so hard to convert a device name to the alias. Thus the script
> can't always convert the name.

Hmm... I don't follow.  Why wouldn't it be able to?  All the
informations are in the log.  It is messy but it's there.  If you want
more structured information, u{dev|disks} already maintain device
libarary - what maps to what, connected how with what attributes and
so on.  Sending them off to the log machine as device hotplug events
occur and consulting it when post-processing log message would work
fine.  All you need is just some python scripting.  I don't really see
much point in messing with device names directly.  The only thing is
that the raw log would be prettier.  I don't think that is useful
enough to justify changing kernel device names.

Thanks.

-- 
tejun