Running `sysctl -a` causes crash (Hyper-V)

[Mateusz Guzik]

On Mon, Nov 11, 2013 at 01:33:25PM -0800, Julian Elischer wrote:
> On 11/11/13, 7:49 AM, Pavel Timofeev wrote:
> >Great, it helped! Thanks a lot!
> 
> the suggested change suggests fragile code. It should be able to
> handle unexpected input..

Indeed, I already suggested Sergey placing a compile time assertion to
make sure vm_guest range is covered.

> >
> >2013/11/11 Sergey Kandaurov <pluknet at gmail.com>:
> >>On 11 November 2013 18:13, Pavel Timofeev <timp87 at gmail.com> wrote:
> >>>[...]
> >>>(kgdb) p vm_guest
> >>>$1 = 3
> >>>Current language:  auto; currently minimal
> >>>(kgdb)
> >>>
> >>What if you try this change?
> >>
> >>Index: sys/kern/subr_param.c
> >>===================================================================
> >>--- sys/kern/subr_param.c    (revision 257695)
> >>+++ sys/kern/subr_param.c    (working copy)
> >>@@ -153,6 +153,7 @@
> >>      "none",
> >>      "generic",
> >>      "xen",
> >>+    "hv",
> >>      NULL
> >>  };
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> >
> 
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-- 
Mateusz Guzik <mjguzik gmail.com>