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Re: [Xen-devel] XEN) vmx.c:2652:d1 Bad vmexit (reason 31) with Xen 4.0.1
| To: | Jan Beulich <JBeulich@xxxxxxxxxx>, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> |
|---|---|
| Subject: | Re: [Xen-devel] XEN) vmx.c:2652:d1 Bad vmexit (reason 31) with Xen 4.0.1-rc7-pre (cs/ 23029) |
| From: | Keir Fraser <keir.xen@xxxxxxxxx> |
| Date: | Fri, 18 Mar 2011 15:31:32 +0000 |
| Cc: | xen-devel@xxxxxxxxxxxxxxxxxxx |
| Delivery-date: | Fri, 18 Mar 2011 08:32:15 -0700 |
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| Thread-topic: | [Xen-devel] XEN) vmx.c:2652:d1 Bad vmexit (reason 31) with Xen 4.0.1-rc7-pre (cs/ 23029) |
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On 18/03/2011 07:55, "Jan Beulich" <JBeulich@xxxxxxxxxx> wrote: >> Exit reason 31 is EXIT_REASON_MSR_READ. I don't see how that error can ever >> be printed for that exit reason. Could you do a bit of digging and see if >> you agree? The logic is straightforward enough -- the error comes from a >> default case in a switch statement, but the switch does explicitly handle >> EXIT_REASON_MSR_READ. There is also a exit_and_crash label for the default >> case, but EXIT_REASON_MSR_READ doesn't goto it afaics. So this is a weird >> and inexplicable bug, to me. :-) > > No, the reason is printed in hex Grrr! I'll add the '0x' prefix. -- Keir > and thus it's EXIT_REASON_EPT_MISCONFIG, > which isn't being handled in the switch statement (and I can't see > how it sensibly could be). But the mere register state is insufficient > to determine what's wrong. _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-devel |
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