Change of UUID?

[Hans <hans.ullrich@loop.de>]

Hello list,

I need some help for understanding things.

On my EEEPC I am usiing encrypted partitions, also swap is encrypted (all 
luks), too.
When I ssuspend to disk, the memory is written to the encrypted swap 
partition, which is /dev/mapper/swap.

In /etc/uswsusp.conf the UUID is identically to the output of "blkid /dev/
mapper/swap".

BUT - Now the problem: From time to time the UUID of /dev/mapper/swap changes 
and is then of course different to the entry in /etc/uswsusp.conf. 

This means, the system sometimes inhibits to boot (after resume), as it does 
not find the resume device. It can then be started by adding "noresume" to the 
kernel commands.

So, what might change the UUID? I did not format swap or similar. The only 
thing I do from time to time is starting a livefile on this computer, buit this 
should not change the UUID, shouldn't it?

But maybe, I have misunderstood, how UUID's are created. The other 
partiitions, which are also encrypted, do NOT change.

Or is it a bug? 

Thanks for any help to enlightening me.

Best regards

Hans