[dm-devel] [multipath-tools] [BUG] segfault in uev_update_path

[Martin Wilck]

On Tue, 2017-03-28 at 11:42 -0500, Benjamin Marzinski wrote:

> Now the question is, what to we do if the path changes wwid, but it's
> not part of a multipath device yet. We could simply print a warning
> message that the wwid has changed, and allow it to happen, since
> there's
> no multipath device currently using the LUN. However, I have seen
> cases
> where multiple LUNs that have already been discovered by a node get
> unmapped, and all the unmapped LUNs from a device get the same
> ID_SERIAL
> value in the uevent for the mapping change. This would cause
> find_multipaths to create a multipath device that includes all of
> these
> unmapped devices, which is clearly wrong.

and in that siutation there'd be no way to detect that these are
unmapped LUNs which don't qualify as paths for a multipath device?

Regards
Martin

-- 
Dr. Martin Wilck <mwilck at suse.com>, Tel. +49 (0)911 74053 2107
SUSE Linux GmbH, GF: Felix Imendörffer, Jane Smithard, Graham Norton
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