Re: [PATCH 03/10] do not allow in-use path to change wwid

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On 10/29/2016 04:55 AM, Benjamin Marzinski wrote:
When a path is part of a multipath device, it must not change it's wwid.
If it can, when multipathd is reconfigured, you can end up with two
multipath devices owning the same path, eventually leading to a crash.

Signed-off-by: Benjamin Marzinski <bmarzins@xxxxxxxxxx>
---
 libmultipath/dmparser.c | 8 ++++++++
 1 file changed, 8 insertions(+)

Hmm. While I do see that this is an issue, just continuing is probably as bad; the wwid change might be genuine, in which case this device has no business being part of that particular multipath device. Can't we just evict that offending path eg by orphaning it and let the admin figure things out?

Cheers,

Hannes
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