Messages in this thread | | | Date | Mon, 18 Oct 2010 22:25:23 +0800 | Subject | Re: [BUG] kvm: guest can not startup due to triple fault | From | Dave Young <> |
| |
On Mon, Oct 18, 2010 at 10:19 PM, Avi Kivity <avi@redhat.com> wrote: > On 10/18/2010 04:15 PM, Dave Young wrote: >> >> On Mon, Oct 18, 2010 at 10:13 PM, Avi Kivity<avi@redhat.com> wrote: >> > On 10/18/2010 04:11 PM, Dave Young wrote: >> >> >> >> On Mon, Oct 18, 2010 at 10:06 PM, Avi Kivity<avi@redhat.com> wrote: >> >> > On 10/18/2010 03:58 PM, Dave Young wrote: >> >> >> >> >> >> > >> >> >> > Please patch hardware_setup() to show the value of >> >> >> > boot_cpu_has(X86_FEATURE_NX). >> >> >> >> >> >> It's 0 >> >> >> >> Please wait, I reply too quick, actually it boots two times fine then >> >> one time fail. >> > >> > What boots fine? The guest? >> >> Yes the guest >> > > That makes some sort of wierd sense. First kvm samples X86_FEATURE_NX, sees > that it has the feature, reports it to qemu, qemu runs the guest, NX gets > disabled in between, the guest tries to enable NX, kvm kills it. > > Second time round, kvm reports that NX is not available, qemu does not > enable it, neither does the guest, and everyone is happy. > > Please confirm that when the guest does boot, it boots without NX in > /proc/cpuinfo. >
Yes, there's no nx in guest cpuinfo
hardware_setup is run only when insmod so the nx is of host, thus the first printk result is right value? > -- > error compiling committee.c: too many arguments to function > >
-- Regards dave -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
| |