bhyve failure

[Julian Elischer]

On 11/28/14, 3:12 AM, Neel Natu wrote:
> Hi Julian,
>
> On Thu, Nov 27, 2014 at 7:02 AM, Julian Elischer <julian at freebsd.org> wrote:
>> I added WITNESS to a kernel I've been running and during boot I got this
>> result:
>>
>> vm exit[0]
>>          reason          VMX
>>          rip             0xffffffff8078c1a7
>>          inst_length     7
>>          status          0
>>          exit_reason     2
> That's a triple fault (from sys/amd64/vmm/intel/vmcs.h)
>
> #define EXIT_REASON_TRIPLE_FAULT        2
>
>
>>          qualification   0x0000000000000000
>>          inst_type               0
>>          inst_error              0
>> Abort trap (core dumped)
>>
>> anyone have a decoder ring?
>>
> A few questions to narrow this down:
>
> Did you add WITNESS to the guest kernel or the host kernel when this happened?
yes I added it to the guest kernel.. I suspect it ay be related to 
this, especially since there was a kernel module loaded that was not 
recompiled.
I'm trying to ascertain now whether a withness kernel requires special 
handling for its modules.


>
> Is this readily reproducible?
don't know yet.

>
> Can you share the host and guest revision numbers?

guest is custom sources based on stable-10 on the same day as 10.0 was 
released.basically whatever svn revision# was on 10.0 but on the 
stable branch.
host is
FreeBSD 10.1-BETA1 #0 r271671: Tue Sep 16 09:31:23 PDT 2014



>
> best
> Neel
>
>> julian
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