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Re: [Xen-devel] [PATCH] Fix xm save timeout with paused domains
| To: | John Levon <levon@xxxxxxxxxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] [PATCH] Fix xm save timeout with paused domains |
| From: | Keir Fraser <keir@xxxxxxxxxxxxx> |
| Date: | Tue, 08 May 2007 17:26:50 +0100 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Tue, 08 May 2007 09:25:27 -0700 |
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| In-reply-to: | <20070508162549.GA19237@xxxxxxxxxxxxxxxxxxxxxxx> |
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| Thread-index: | AceRja4P7LKGsP2AEduQdAAX8io7RQ== |
| Thread-topic: | [Xen-devel] [PATCH] Fix xm save timeout with paused domains |
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On 8/5/07 17:25, "John Levon" <levon@xxxxxxxxxxxxxxxxx> wrote: >> How about just not pausing a domain that you're going to save? > > This doesn't work when you're doing tight save/restore / migration > loops, where the unpausing happens after plugging virtual devices for > the new domain. This can cause the timer to expire before we unpause the > domain and give it a chance to update its frame list entry. Hmm.. Perhaps 'xm restore/migrate' shouldn't return until the new domain is actually running. Or (probably easier) xend should hold save requests pending until the domain concerned is unpaused? -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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