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xen-devel
Re: [Xen-devel] out-of-memory problem when restoringballooneddomains
On 10 Mar 2005, at 23:35, Lars Rasmusson wrote:
I think the relevant part from the log is this.
xc_linux_restore start
Could not create domain. pfns=460800, 1843200KB
Could not create domain. pfns=460800, 1843200KB
4526 [INF] XFRD> Xfr service err=1
Ah! The problem is that we initially create the domain with its
'maximum possible' memory allocation, and then automatically 'balloon
it down' at the end of the restore operation. Of course by the third
domain you do not have 1.8GB of headroom and so the third restore
fails.
This probably made live relocation easier to implement, but we need to
change this to allocate only the memory that the domain is currently
using during each round of pre-copy migration. Getting non-live moved
over is the first step, and then fix live relocation, I guess.
-- Keir
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