Date: Tue, 12 Nov 2013 04:01:55 +0100 From: Mateusz Guzik <mjguzik@gmail.com> To: Julian Elischer <julian@freebsd.org> Cc: freebsd-virtualization@freebsd.org Subject: Re: Running `sysctl -a` causes crash (Hyper-V) Message-ID: <20131112030154.GA29757@dft-labs.eu> In-Reply-To: <52814D25.1050603@freebsd.org> References: <CAAoTqfvrdKH6BC=KrpWLgBKDjx402oTt_bp1TnV_Z3FC1if88A@mail.gmail.com> <CAE-mSOLKgk_h10mUPLuMXHgPfYJMEog_FFdyZvEoAOXMh=rbfg@mail.gmail.com> <CAAoTqfu9NFuVFYnLFo%2BLG7_kXd%2BAaxEPTm4nCKETzWvje7=fyA@mail.gmail.com> <CAE-mSOLeMHkh7gKLZPYcyu3GdJKqN4hAMBgEf5TwMUxB4nQ7zA@mail.gmail.com> <CAAoTqftAbsDNUiCv4QRnNfamf61dPhJ%2BWAzgfVVL4QMe9qHxcA@mail.gmail.com> <CAE-mSOLszJLfHBgmSTaUH5%2B5dTe23XLUFbp-nhfPpz2UVWMCJQ@mail.gmail.com> <CAAoTqfu716D-ifL-GXurxveZOKahLpndAivBWWt6ENHOJxXaaA@mail.gmail.com> <52814D25.1050603@freebsd.org>
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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@gmail.com>: > >>On 11 November 2013 18:13, Pavel Timofeev <timp87@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 > >> }; > >_______________________________________________ > >freebsd-virtualization@freebsd.org mailing list > >http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > >To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@freebsd.org" > > > > _______________________________________________ > freebsd-virtualization@freebsd.org mailing list > http://lists.freebsd.org/mailman/listinfo/freebsd-virtualization > To unsubscribe, send any mail to "freebsd-virtualization-unsubscribe@freebsd.org" -- Mateusz Guzik <mjguzik gmail.com>
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