what does vapic affect Windows 7 at all if I disable it? if it just a minor performance drop, I am fine with that. On Thu, Dec 4, 2014 at 10:06 AM, Zhang Haoyu <zhanghy@xxxxxxxxxxx> wrote: >>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@xxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxx> 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@xxxxxxxxxxx> 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@xxxxxxxxxxxxxxxxxx> 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@xxxxxxxxxxx> 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 > -- 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 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
