Nakajima, Jun
2006-Mar-29 17:12 UTC
RE: [Xen-devel] Assertion ''! IS_INVALID_M2P_ENTRY(gpfn)'' failedkillsmachine
Keir Fraser wrote:> On 29 Mar 2006, at 17:09, Nakajima, Jun wrote: > >> Are you doing live migration? In the default setup for domUs, the >> shadow code is never used. > > The mini patches for Linux we submitted to lkml depend on shadow mode. > > -- Keir >So this is _not_ for 3.0.2? I expect some hiccups with that if domUs start using other than log-dirty mode (e.g. SHM_translate). For this particular bug, I think the P2M table is missing the mapping for the xenpage_list. We''ll take a look at that. For PAE or x86-64, although xenlinux uses subset of the shadow sub-modes, I guess we have more bugs with domUs simply because we haven''t tested (we have higher confidence with log-dirty mode for domU live migration). HVM guests have been tested well, and they use the shadow mode combined with SHM_external (which domUs don''t). Jun --- Intel Open Source Technology Center _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel
Keir Fraser
2006-Mar-29 17:19 UTC
Re: [Xen-devel] Assertion ''! IS_INVALID_M2P_ENTRY(gpfn)'' failedkillsmachine
On 29 Mar 2006, at 18:12, Nakajima, Jun wrote:> So this is _not_ for 3.0.2? I expect some hiccups with that if domUs > start using other than log-dirty mode (e.g. SHM_translate). For this > particular bug, I think the P2M table is missing the mapping for the > xenpage_list. We''ll take a look at that.The mini-linux patches are not going into our repository at all, so the patches have no relation to our release process.> For PAE or x86-64, although xenlinux uses subset of the shadow > sub-modes, I guess we have more bugs with domUs simply because we > haven''t tested (we have higher confidence with log-dirty mode for domU > live migration). HVM guests have been tested well, and they use the > shadow mode combined with SHM_external (which domUs don''t).Well, Christian''s fixed one or two bugs today. We''re finding the bugs one by one. :-) -- Keir _______________________________________________ Xen-devel mailing list Xen-devel@lists.xensource.com http://lists.xensource.com/xen-devel