butine@zju.edu.cn
2013-Jul-21 14:41 UTC
about the guest(Redhat6.3) shows white screen, but the suse, ubuntu is ok
hello,Dario, I have implemented the HVM guest NUMA.After I created the guest(Redhat6.3),it would show white screen when guest started.But the suse,ubuntu is ok.why?? Thanks Regard, Butine Huang 2013-07-15 _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Dario Faggioli
2013-Jul-22 11:32 UTC
Re: about the guest(Redhat6.3) shows white screen, but the suse, ubuntu is ok
On dom, 2013-07-21 at 22:41 +0800, butine@zju.edu.cn wrote:> hello,Dario, >Hi,> I have implemented the HVM guest NUMA. >Oh, really? Well, that would be really nice indeed. I''m on vacation till Wednesday, so I''ll take a look at you patch on Thursday (or even later :-( ). I''m Cc-ing Matt, which was also looking into it. I''m also Cc-ing Elena which (if I understood Butine''s work correctly), is looking into pretty much the same thing, although for PV. One thing I can already tell you is that this is a really big patch, and it''d be really really uncomfortable to review it like this... Could you perhaps split it into smaller patches and send a proper series? Take a look at other patch series submissions on the xen-devel mailing list...> After I created the guest(Redhat6.3),it would show white screen when > guest started.But the suse,ubuntu is ok.why?? >Mmm.. No idea. :-( Actually, I''m not even sure I understood what happens, to properly try to help in debugging any issue, I think we''d require much more information and some logs. For instance, have a look here: http://blog.xen.org/index.php/2013/06/04/reporting-a-bug-against-the-xen-hypervisor/ Nice to see that you''re working on this though, and thanks for sharing the code! :-) Thanks and Regards, Dario -- <<This happens because I choose it to happen!>> (Raistlin Majere) ----------------------------------------------------------------- Dario Faggioli, Ph.D, http://about.me/dario.faggioli Senior Software Engineer, Citrix Systems R&D Ltd., Cambridge (UK) _______________________________________________ Xen-devel mailing list Xen-devel@lists.xen.org http://lists.xen.org/xen-devel
Matt Wilson
2013-Jul-23 06:26 UTC
Re: about the guest(Redhat6.3) shows white screen, but the suse, ubuntu is ok
On Mon, Jul 22, 2013 at 12:32:10PM +0100, Dario Faggioli wrote:> On dom, 2013-07-21 at 22:41 +0800, butine@zju.edu.cn wrote: > > hello,Dario, > > > Hi, > > > I have implemented the HVM guest NUMA. > > > Oh, really? Well, that would be really nice indeed. I''m on vacation till > Wednesday, so I''ll take a look at you patch on Thursday (or even > later :-( ). > > I''m Cc-ing Matt, which was also looking into it. I''m also Cc-ing Elena > which (if I understood Butine''s work correctly), is looking into pretty > much the same thing, although for PV.> One thing I can already tell you is that this is a really big patch, and > it''d be really really uncomfortable to review it like this... Could you > perhaps split it into smaller patches and send a proper series? > > Take a look at other patch series submissions on the xen-devel mailing > list...Hi, I had a quick look at your patch. There''s quite a lot of code there! My NUMA support for HVM guests patch is a lot smaller. I''ve been meaning to find some time to add some support in libxl before posting it. Perhaps I should post my series (which is based in part on patches posted a while ago on xen-devel) as a RFC so you can see how it works.> > After I created the guest(Redhat6.3),it would show white screen when > > guest started.But the suse,ubuntu is ok.why?? > > > Mmm.. No idea. :-( > > Actually, I''m not even sure I understood what happens, to properly try > to help in debugging any issue, I think we''d require much more > information and some logs.In looking at your patches, you don''t seem to adjust the initial APIC ID of the virtual CPUs. The APIC ID needs to be changed so that cpu topology enumeration via cpuid works correctly. I''ve seen Linux panic early when the ACPI tables say that a NUMA topology is expected but the CPU topology via cpuid doesn''t match. --msw> For instance, have a look here: > http://blog.xen.org/index.php/2013/06/04/reporting-a-bug-against-the-xen-hypervisor/ > > Nice to see that you''re working on this though, and thanks for sharing > the code! :-) > > Thanks and Regards, > Dario >