[ENBD] Anyone got swapping over NBD-2.4.25 working?

[Jason A. Pattie]

I have had similar experiences, except it didn't last as long as you 
were able to get it to work.  The explanation I got from PTB was the 
fact that each child thread (being in userspace) requires a specific 
amount of memory in order to run.  Well, if a child thread is "swapped 
out", but it needs to be resurrected to do some work, but there isn't 
enough memory to pull it back and if all the other child processes have 
been "swapped out", then ... well, you see the quandry.  (It's something 
like that)

You can increase the number of child processes that get spawned, but you 
will just be staving off the inevitable.

Alan Messer wrote:

> Hi,
>
> I've been trying to get swapping to work over NBD-2.4.25 and kernel 
> 2.2.14. I remember pass NBD incarnations had special patches to get 
> swapping to work of NBD? Has anyone tried these or other patches to 
> get this to work.
>
> In my experiments, my client machine hangs after 30-40 minutes of 
> gradual swapping with no errors or messages, just a blank scree.
>
> Is swapping using nbd a possibility with Enhanced NBD?
>
> Alan.
>
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-- 
Jason A. Pattie
pattieja@pcxperience.com