[Xen-devel] Re: [Xen-users] (xen) Possible bug: Memory squeeze in netback driver.

[Anthony Liguori <aliguori@xxxxxxxxxx>]

Erik Hensema wrote:
> On Tuesday 06 June 2006 23:43, Anthony Liguori wrote:
>   
> > This is a rather curious path in the code involving rate limiting
> > that I'm not all that familiar with.  Does it help is you create
> > the domains with a large maxmem than memory?  For instance:
> >
> > maxmem = 512
> > memory = 256
> >     
> Yes, it does seem to help. I've recreated almost all domains with 16 
> MB 'headroom', now I can create domains up until the point I run out 
> of loop devices ;-) (6 domU's running ATM)
> I'll reboot tonight (or shutdown all domains and reload the loop 
> module) and try to start more domains.
>   
I suspected it would but I was hoping it wouldn't.  Do this mean that 
the netback driver needs to be able to increase it's reservation?  If 
so, should we be enforcing (in the tools) that memory < maxmem?  Any 
thoughts Keir?
Regards,

Anthony Liguori


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