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Re: [Xen-devel] Problem with nr_nodes on large memory NUMA machine
| To: | "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx>, <eak@xxxxxxxxxx>, <Xen-devel@xxxxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Problem with nr_nodes on large memory NUMA machine |
| From: | Keir Fraser <Keir.Fraser@xxxxxxxxxxxx> |
| Date: | Fri, 19 Oct 2007 16:32:03 +0100 |
| Delivery-date: | Fri, 19 Oct 2007 08:36:52 -0700 |
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| Thread-topic: | [Xen-devel] Problem with nr_nodes on large memory NUMA machine |
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On 19/10/07 16:21, "Subrahmanian, Raj" <raj.subrahmanian@xxxxxxxxxx> wrote: > Beth, > We saw this issue on our boxes too. > http://lists.xensource.com/archives/html/xen-devel/2007-08/msg00479.html > I am trying to figure out how to write the copy-to-low-memory path. > Keir, could you give me some suggestions? In gnttab_transfer(), if the foreign domain (e) is 32-on-64 and the page being stolen from the local domain (d) is above 166GB then allocate anothr domheap page for e, copy the stolen page contents to it. Then free the stolen page and the new page takes its place. -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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