PVE 4.0 Beta2 + qemu + acpi

[Whatever]

It's also working for me if I disable kvm.
can you test ?

Yes, it works with kvm disabled although Windows 2012 R2 won't boot up

Also what is your cpu model ?

Xeon L5620

 

[spirit]

ok, thanks.
I think I have found the problem, it's a mix between qemu 2.4 + kernel 4.2 + kvm.

rollbacking to kernel 4.1 also fix the problem.
I think it's a kvm bug in kernel 4.2.

I'll contact the qemu team to have help.

Thanks for help !

 

[spirit]

can you test:

http://odisoweb1.odiso.net/pve-qemu-kvm_2.4-8_amd64.deb

?

I have make a workaround for a new kvm feature introduce in kernel 4.2.
It's fix the problem for me.

 

[Whatever]

Works for me as well.

Could you give some more details on what features cause these troubles?

 

[spirit]

Works for me as well.

Could you give some more details on what features cause these troubles?

It's related to a new kvm feature KVM_CAP_X86_SMM

https://lkml.org/lkml/2015/5/8/235

exposed since kernel 4.2.

qemu 2.4 with machine 2.4, try to enable it. But it seem to hang on some servers/chipset?/cpus?.

I'm currently debug it with paolo bonzini from qemu team.



For other guys in this thread, could you test it too ? (the pve-qemu-kvm package)
I'm also interested to have result of this command:

grep -r . /sys/module/kvm*/parameters

 

[Egner]

It's related to a new kvm feature KVM_CAP_X86_SMM

https://lkml.org/lkml/2015/5/8/235

exposed since kernel 4.2.

qemu 2.4 with machine 2.4, try to enable it. But it seem to hang on some servers/chipset?/cpus?.

I'm currently debug it with paolo bonzini from qemu team.



For other guys in this thread, could you test it too ? (the pve-qemu-kvm package)
I'm also interested to have result of this command:

grep -r . /sys/module/kvm*/parameters

I can confirmed that is work also for me.

Here comes my results:

root@w01-c-h:~# grep -r . /sys/module/kvm*/parameters
/sys/module/kvm_intel/parameters/ept:Y
/sys/module/kvm_intel/parameters/pml:N
/sys/module/kvm_intel/parameters/vpid:Y
/sys/module/kvm_intel/parameters/enable_shadow_vmcs:N
/sys/module/kvm_intel/parameters/eptad:N
/sys/module/kvm_intel/parameters/flexpriority:Y
/sys/module/kvm_intel/parameters/ple_window_grow:2
/sys/module/kvm_intel/parameters/ple_window_shrink:0
/sys/module/kvm_intel/parameters/ple_window_max:1073741823
/sys/module/kvm_intel/parameters/fasteoi:Y
/sys/module/kvm_intel/parameters/enable_apicv:N
/sys/module/kvm_intel/parameters/unrestricted_guest:N
/sys/module/kvm_intel/parameters/emulate_invalid_guest_state:Y
/sys/module/kvm_intel/parameters/nested:N
/sys/module/kvm_intel/parameters/vmm_exclusive:Y
/sys/module/kvm_intel/parameters/ple_window:4096
/sys/module/kvm_intel/parameters/ple_gap:0
/sys/module/kvm/parameters/tsc_tolerance_ppm:250
/sys/module/kvm/parameters/halt_poll_ns:0
/sys/module/kvm/parameters/min_timer_period_us:500
/sys/module/kvm/parameters/kvmclock_periodic_sync:Y
/sys/module/kvm/parameters/ignore_msrs:N
/sys/module/kvm/parameters/allow_unsafe_assigned_interrupts:N
/sys/module/kvm/parameters/lapic_timer_advance_ns:0

Thank you Spirit!

 

[dietmar]

I just update the packages repository - please update and test.

 

[Egner]

I just update the packages repository - please update and test.

Confirmed, works great!

 

[spirit]

Confirmed, works great!

what is your cpu and server model ?

 

[Egner]

what is your cpu and server model ?

Server : DELL blade M610
CPU : Intel Xeon E5540

 

[spirit]

Paolo from qemu team think that it could be a (physical) cpu bug.
Is your bios and cpu microcode updated to last version ?

My server where I can hit the bug is not updated since 2010.

 

[Whatever]

In my case BIOS has been updated to the latest one. Will try to update CPU microcode (never have done it before )

 

[Whatever]

microcode-20150121.tgz from Intel website

root@pve:/tmp/micro# iucode_tool -tb -lS /tmp/micro
iucode_tool: system has processor(s) with signature 0x000106a5
selected microcodes:
001: sig 0x000106a5, pf mask 0x03, 2013-06-21, rev 0x0019, size 10240

root@pve:/tmp/micro# dmesg | grep microcode
[    0.781385] microcode: CPU0 sig=0x106a5, pf=0x1, revision=0x19
[    0.781392] microcode: CPU1 sig=0x106a5, pf=0x1, revision=0x19
[    0.781399] microcode: CPU2 sig=0x106a5, pf=0x1, revision=0x19
[    0.781409] microcode: CPU3 sig=0x106a5, pf=0x1, revision=0x19
[    0.781415] microcode: CPU4 sig=0x106a5, pf=0x1, revision=0x19
[    0.781422] microcode: CPU5 sig=0x106a5, pf=0x1, revision=0x19
[    0.781428] microcode: CPU6 sig=0x106a5, pf=0x1, revision=0x19
[    0.781433] microcode: CPU7 sig=0x106a5, pf=0x1, revision=0x19
[    0.781489] microcode: Microcode Update Driver: v2.00 <tigran@aivazian.fsnet.co.uk>, Peter Oruba

Seems nothing to update(((

 

[spirit]

Thanks for the informations.
I'll try to update it on my side.

 

[spirit]

Same here for my r710, last microcode, not working.

 

[Martinjo84]

Great after upgrade now works on Dell R610

Great work!

 

[spirit]

Great !

Note that currently it's more like a workaround to disable the new feature introduce from kernel 4.2.
I'm currently debugging the kernel with paolo from qemu, I hope we'll find where is the problem soon.

(This feature is only to manage uefi inside guest vm, so it's not critical)

 

[mikca]

Thx.On my

 Supermicro X8DTT + L5520

with pve-qemu-kvm: 2.4-9 all works great.
Previous version pve-qemu-kvm: 2.4-8 - unfortunately not.
If you need a tester/platform for test - please PM me, i will try to help.

 

[Whatever]

Going to change CPU to X5650 but it seems probably not related to CPU/microcode

 

[spirit]

Going to change CPU to X5650 but it seems probably not related to CPU/microcode

Paolo from qemu think it's not related if microcode is upgraded to last version.
He send me some kernel patches to display more debug infos.

I'll keep you in touch as soon as possible.