Re: Windows 7 VM BSOD

["Zhang Haoyu" <zhanghy@sangfor.com>]

>Sure, but I am little confused as KVM is part of linux kernel now, if
>I want to try it, should I just upgrade kernel or compile kvm kernel
>module by myself ?!
>
You can just apply the patch to kvm module and rebuild it.

>On Thu, Dec 4, 2014 at 10:01 AM, Zhang Haoyu <zhanghy@sangfor.com> wrote:
>>>I just confirmed that vapic is causing win7 stuck.
>>>
>> You'd better try the commit fc57ac2c9ca :-)
>>
>>>On Thu, Dec 4, 2014 at 9:34 AM, Thomas Lau <tlau@tetrioncapital.com> wrote:
>>>> Hi,
>>>>
>>>> I don't want to recompile stuff, does it matter to have hv_vapic on at all?
>>>>
>>>> On Thu, Dec 4, 2014 at 9:24 AM, Zhang Haoyu <zhanghy@sangfor.com> wrote:
>>>>>> Oh I see,
>>>>>>
>>>>>> So 101 BSOD problem is well known? Can't find any document mention about 101 BSOD online.
>>>>>>
>>>>>> I tried to use hv_ other options but Win7 can't boot up properly and stucked at starting Windows screen.
>>>>>>
>>>>> Could you confirm that the stuck was caused by vhich hv feature?
>>>>> The commit fc57ac2c9ca can resolve a stuck caused by hv_vapic which I encountered before.
>>>>> https://git.kernel.org/cgit/virt/kvm/kvm.git/commit/arch/x86/kvm/lapic.c?id=fc57ac2c9ca8109ea97fcc594f4be436944230cc
>>>>>
>>>>>> Sent from my BlackBerry 10 smartphone.
>>>>>>   Original Message
>>>>>> From: Vadim Rozenfeld
>>>>>> Sent: Wednesday, 3 December, 2014 7:30 PM
>>>>>> To: Thomas Lau
>>>>>> Cc: Zhang Haoyu; kvm; imammedo
>>>>>> Subject: Re: Windows 7 VM BSOD
>>>>>>
>>>>>> If you run WS2008(R2) or Win7 - always turn on relaxed timing. Otherwise
>>>>>> it's just a matter of time when you hit 101 BOSD.
>>>>>> Bugcheck 78 is quite rare one. What is your setup, and how easy it's
>>>>>> reproducible?
>>>>>>
>>>>>> Best regards,
>>>>>> Vadim.
>>>>>>
>>>>>> On Wed, 2014-12-03 at 19:13 +0800, Thomas Lau wrote:
>>>>>> > "it works on your side" meaning that you had such issue but afterwards
>>>>>> > it's all fixed by apply hv_relaxed ?
>>>>>> >
>>>>>> > On Wed, Dec 3, 2014 at 7:08 PM, Zhang Haoyu <zhanghy@sangfor.com> wrote:
>>>>>> > >> https://bugzilla.redhat.com/show_bug.cgi?id=893857
>>>>>> > >>
>>>>>> > >> In fact I am doing testing now, but are we fixing one problem and
>>>>>> > >> introduce other problem?!
>>>>>> > >>
>>>>>> > > I'm not sure about this, but it works on my side,
>>>>>> > > I think BSOD(error:0x00000078) has been fixed,
>>>>>> > > please show your environment.
>>>>>> > >
>>>>>> > > Thanks,
>>>>>> > > Zhang Haoyu
>>>>>> > >> On Wed, Dec 3, 2014 at 6:36 PM, Thomas Lau <tlau@tetrioncapital.com> wrote:
>>>>>> > >> > Hi,
>>>>>> > >> >
>>>>>> > >> > How do I know if my qemu-kvm version support this?
>>>>>> > >> >
>>>>>> > >> > On Wed, Dec 3, 2014 at 6:25 PM, Zhang Haoyu <zhanghy@sangfor.com> wrote:
>>>>>> > >> >>> Hi All,
>>>>>> > >> >>>
>>>>>> > >> >>> I am running 3.13.0-24-generic kernel on Ubuntu 14, Windows 7 VM
>>>>>> > >> >>> installation was fine, but it does random reboot by itself, the error
>>>>>> > >> >>> code is 0x00000101, does anyone know how to fix this?
>>>>>> > >> >> Could you try hv_relaxed, like "-cpu kvm64,hv_relaxed".
>>>>>> > >> >>
>>>>>> > >> >> Thanks,
>>>>>> > >> >> Zhang Haoyu
>>>>
>>>>
>>>>
>>>> --
>>>> Thomas Lau
>>>> Director of Infrastructure
>>>> Tetrion Capital Limited
>>>>
>>>> Direct: +852-3976-8903
>>>> Mobile: +852-9323-9670
>>>> Address: 20/F, IFC 1, Central district, Hong Kong