On Jul 18, 2013, at 3:31 AM, Gleb Natapov wrote:
> On Thu, Jul 18, 2013 at 03:07:11AM +0800, Xiao Guangrong wrote:
>> Ouch!
>>
>> The guest is hang when boot from ubuntu iso, i bisected the code and found
>> it is caused by:
>>
>> cad55f1aed000db46dfd1b5706707f33624d8604 is the first bad comm
On 2013.07.18 at 03:27 +0800, Xiao Guangrong wrote:
>
> Could you please try this:
>
> index 460b9c6..16d1578 100644
> --- a/arch/x86/kvm/mmu.c
> +++ b/arch/x86/kvm/mmu.c
> @@ -2952,6 +2952,9 @@ static bool page_fault_can_be_fast(u32 error_code)
> !(error_code & PFERR_WRITE_MASK))
>
On Thu, Jul 18, 2013 at 03:07:11AM +0800, Xiao Guangrong wrote:
> Ouch!
>
> The guest is hang when boot from ubuntu iso, i bisected the code and found it
> is caused by:
>
> cad55f1aed000db46dfd1b5706707f33624d8604 is the first bad commit
> commit cad55f1aed000db46dfd1b5706707f33624d8604
> Autho
On Wed, Jul 17, 2013 at 09:00:29PM +0200, Markus Trippelsdorf wrote:
> > > 10346403 qemu-system-x86-1403 [001] 1451.422260: check_mmio_spte:
> > > spte fee00e3f kvm_gen 7ffc8 spte-gen 7ffc7 valid 0
> > > ...
Can you trace only this event and record stack information:
trace-cmd re
Hi,
Could you please try this:
index 460b9c6..16d1578 100644
--- a/arch/x86/kvm/mmu.c
+++ b/arch/x86/kvm/mmu.c
@@ -2952,6 +2952,9 @@ static bool page_fault_can_be_fast(u32 error_code)
!(error_code & PFERR_WRITE_MASK))
return false;
+ if (error_code & PFERR_RS
Ouch!
The guest is hang when boot from ubuntu iso, i bisected the code and found it
is caused by:
cad55f1aed000db46dfd1b5706707f33624d8604 is the first bad commit
commit cad55f1aed000db46dfd1b5706707f33624d8604
Author: Cornelia Huck
Date: Wed Jul 3 16:30:53 2013 +0200
KVM: kvm-io: suppor
On Wed, Jul 17, 2013 at 08:42:26PM +0200, Markus Trippelsdorf wrote:
> On 2013.07.18 at 01:25 +0800, Xiao Guangrong wrote:
> > Hi Markus,
> >
> > Thanks for your report! I am downloading the ubuntu iso and will try to
> > reproducible it.
> >
> > Could you please enable these tracepoints:
> > kv
On 2013.07.18 at 01:25 +0800, Xiao Guangrong wrote:
> Hi Markus,
>
> Thanks for your report! I am downloading the ubuntu iso and will try to
> reproducible it.
>
> Could you please enable these tracepoints:
> kvmmmu/check_mmio_spte
> kvmmmu/handle_mmio_page_fault
> kvmmmu/kvm_mmu_invalidate_zap_
On 2013.07.18 at 01:25 +0800, Xiao Guangrong wrote:
> Hi Markus,
>
> Thanks for your report! I am downloading the ubuntu iso and will try to
> reproducible it.
Please note that the exact guest doesn't matter. I first noticed the
hang when I tried to install Fedora 19 today.
> Could you please e
Hi Markus,
Thanks for your report! I am downloading the ubuntu iso and will try to
reproducible it.
Could you please enable these tracepoints:
kvmmmu/check_mmio_spte
kvmmmu/handle_mmio_page_fault
kvmmmu/kvm_mmu_invalidate_zap_all_pages
kvmmmu/mark_mmio_spte
kvm/kvm_mmio
kvm/vcpu_match_mmio
and
On 2013.07.17 at 19:42 +0300, Gleb Natapov wrote:
> On Wed, Jul 17, 2013 at 06:32:15PM +0200, Markus Trippelsdorf wrote:
> > The following commit:
> > commit f8f559422b6c6a05469dfde614b67789b6142cb5
> > Author: Xiao Guangrong
> > Date: Fri Jun 7 16:51:26 2013 +0800
> >
> > KVM: MMU: fast
On Wed, Jul 17, 2013 at 06:32:15PM +0200, Markus Trippelsdorf wrote:
> The following commit:
> commit f8f559422b6c6a05469dfde614b67789b6142cb5
> Author: Xiao Guangrong
> Date: Fri Jun 7 16:51:26 2013 +0800
>
> KVM: MMU: fast invalidate all mmio sptes
>
> causes my kvm qemu qcow2 images
The following commit:
commit f8f559422b6c6a05469dfde614b67789b6142cb5
Author: Xiao Guangrong
Date: Fri Jun 7 16:51:26 2013 +0800
KVM: MMU: fast invalidate all mmio sptes
causes my kvm qemu qcow2 images to hang when they switch from the boot
console to the desktop. For example:
qemu-sys
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