Hi Laszlo
So i managed to reproduce this with debug logs this time and figured out
what happened.
tl;dr: KVM is spamming guest firmware with 8254 PIT timer IRQs after
accumulating a lot of missed timer expiration events while win 2k16 boot
loader was waiting for debugger connection on COM2.
As in
On 11/23/16 09:37, Evgeny Yakovlev wrote:
> You are right of course about the old tree, no objections here. I will
> try to advocate for an update however i am pretty sure we're stuck with
> our version for some time at least.
>
> Still, my original question was about is it normal for OVMF Sec/Pei
On 11/23/16 15:31, Evgeny Yakovlev wrote:
> Looks like we're actually based on OVMF tree for RHEL7.2:
> ovmf/rhel-20150414-2.gitc9e5618.el7, ovmf/rhel-srpm-7.2
>
> So maybe this affects those deployments as well
Maybe, but OVMF is Tech Preview (--> totally unsupported) even in
RHEL-7.3. :)
Laszl
Looks like we're actually based on OVMF tree for RHEL7.2:
ovmf/rhel-20150414-2.gitc9e5618.el7, ovmf/rhel-srpm-7.2
So maybe this affects those deployments as well
2016-11-22 19:58 GMT+03:00 Laszlo Ersek :
> On 11/22/16 14:58, Evgeny Yakovlev wrote:
> > Wow, that is more than i expected :)
> >
> >
You are right of course about the old tree, no objections here. I will try
to advocate for an update however i am pretty sure we're stuck with our
version for some time at least.
Still, my original question was about is it normal for OVMF Sec/Pei stage
to have its stack so close to 0x10 and/or
On 11/22/16 14:58, Evgeny Yakovlev wrote:
> Wow, that is more than i expected :)
>
>> I wonder if you started to see this issue very recently.
> Very recently, however we use a pretty old OVMF build, circa 2015
Ugh. Please update OVMF first... A whole lot of things has changed in
edk2 in this yea
Wow, that is more than i expected :)
> I wonder if you started to see this issue very recently.
Very recently, however we use a pretty old OVMF build, circa 2015
> OVMF debug log
Sorry, we hadn't had it enabled when VM crashed and these crashes are very
rare. We will try to capture it when it ha
Hello Evgeny,
On 11/22/16 13:57, Evgeny Yakovlev wrote:
> We are running windows UEFI-based VMs on QEMU/KVM with OvmfPkg.
>
> Very rarely we are experiencing a crash when VM tries to write to RO memory
> very early during UEFI boot process.
>
> Crash happens when VM tries to execute this code in
We are running windows UEFI-based VMs on QEMU/KVM with OvmfPkg.
Very rarely we are experiencing a crash when VM tries to write to RO memory
very early during UEFI boot process.
Crash happens when VM tries to execute this code in interrupt handler:
https://github.com/tianocore/edk2/blob/master/Uef
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