Re: [Xen-devel] Migration hung with PVOPS kernel

[Ian Campbell <Ian.Campbell@xxxxxxxxxx>]

On Tue, 2010-12-14 at 08:23 +0000, Joe Jin wrote:
> Hi Jeremy,
> 
> These days I tried PVOPS kernel on xen 3.4.3, when do live migration
> testing, found I could not migration back and guest hangs, any access to 
> guest result
> in hang. After 3 to minutes guest seems to come back without doing anything.
> 
> Tried older kernel(2.6.32.15) it worked fine, but 2.6.32.16 did not,
> after this release for 2.6.32 stable tree, the first migration guest will 
> hang.
> with the latest PVOPS(xen.git), migrate to remote server worked but migrate 
> back will
> failed.
> 
> Checked the changes between 2.6.32.15 with 2.6.32.16 and found when
> revert the commit 8a22b9996b001c88f2bfb54c6de6a05fc39e177a in upstream, 
> migration
> test work fine.

2.6.32.16 is quite old, why are you not running the latest stable
release? There have been several fixes to migration since then.

I'm a bit confused though, 8a22b9996b001c88f2bfb54c6de6a05fc39e177a only
went in at 2.6.32.18 (as 9c55fad24be2f417233f5ea3959ade85756fda5f) so
should make no difference to 2.6.32.{15,16}.

Ian.



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