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Re: [Xen-devel] Memory Sharing on HVM guests
| To: | Lakshitha Harshan <harshan.dll@xxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] Memory Sharing on HVM guests |
| From: | Jui-Hao Chiang <juihaochiang@xxxxxxxxx> |
| Date: | Thu, 17 Feb 2011 12:04:49 -0500 |
| Cc: | MaoXiaoyun <tinnycloud@xxxxxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxx>, Tim Deegan <Tim.Deegan@xxxxxxxxxx> |
| Delivery-date: | Thu, 17 Feb 2011 09:05:46 -0800 |
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Hi, Harshan: > > I recommend working on the release candidate for 4.1.0 (4.1.0-rc5, > http://hg.uk.xensource.com/xen-unstable.hg/log/22929) where page sharing > is in much better shape. MaoXiaoyun and Jui-Hao Chiang have been > working on it recently, and I hope will continue to do so after the > 4.1.0 release. > You can first go through the mailing list by searching the email address of me and Xiaoyun. As Tim said, the current mem_sharing code has race condition on p2m type with p2m code. From Xiaoyun's testing result, the shared memory pages can be grabbed/invalidated by others especially during guest reboot. To solve the problem, we are digging into the p2m code (Tim would probably have more time on this after the 4.1 release) I have some scribble on my google document https://docs.google.com/document/pub?id=16cK1JtXhhyNkGHtV_0XTkFnM2nkVxSP144EjozioC6w#h.y4a96-augwr7 If you like, send email and we can also discuss the details about what we have done so far. Bests, Jui-Hao _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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