HI Michael,
Apologies the reportbug package is installed on a laptop, the issue is on a
headless system, unfortunately debian doesn't allow SMTP from my mail
server so I am trying to get this posted via reportbug -> text editor ->
gmail -> bugs.debian , sometimes I miss replacing parts that are taken from
the laptop system information with the real system information.
This headless server has both Kernel: Linux 5.16.0-6-amd64 as well as Linux
5.17.0-1-amd64 #1 SMP PREEMPT Debian 5.17.3-1 (2022-04-18) x86_64 GNU/Linux
same result as above.
libvirt full log (modified for anonymity) :
2022-04-21 17:07:40.149+0000: starting up libvirt version: 8.2.0, package:
1 (Andrea Bolognani <e...@kiyuko.org> Wed, 20 Apr 2022 22:51:26 +0200), qemu
version: 7.0.0Debian 1:7.0+dfsg-1, kernel: 5.17.0-1-amd64, hostname:
REPLACED_VHOSTNAME
LC_ALL=C \
PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin \
HOME=/var/lib/libvirt/qemu/domain-3-REPLACED_VM_NAME \
XDG_DATA_HOME=/var/lib/libvirt/qemu/domain-3-REPLACED_VM_NAME/.local/share \
XDG_CACHE_HOME=/var/lib/libvirt/qemu/domain-3-REPLACED_VM_NAME/.cache \
XDG_CONFIG_HOME=/var/lib/libvirt/qemu/domain-3-REPLACED_VM_NAME/.config \
/usr/bin/qemu-system-x86_64 \
-name guest=REPLACED_VM_NAME,debug-threads=on \
-S \
-object
'{"qom-type":"secret","id":"masterKey0","format":"raw","file":"/var/lib/libvirt/qemu/domain-3-REPLACED_VM_NAME/master-key.aes"}'
\
-blockdev
'{"driver":"file","filename":"/usr/share/OVMF/OVMF_CODE_4M.ms.fd","node-name":"libvirt-pflash0-storage","auto-read-only":true,"discard":"unmap"}'
\
-blockdev
'{"node-name":"libvirt-pflash0-format","read-only":true,"driver":"raw","file":"libvirt-pflash0-storage"}'
\
-blockdev
'{"driver":"file","filename":"/var/lib/libvirt/qemu/nvram/REPLACED_VM_NAME_VARS.fd","node-name":"libvirt-pflash1-storage","auto-read-only":true,"discard":"unmap"}'
\
-blockdev
'{"node-name":"libvirt-pflash1-format","read-only":false,"driver":"raw","file":"libvirt-pflash1-storage"}'
\
-machine
pc-q35-5.2,usb=off,vmport=off,dump-guest-core=off,pflash0=libvirt-pflash0-format,pflash1=libvirt-pflash1-format,memory-backend=pc.ram
\
-accel kvm \
-cpu
Opteron_G3,vme=on,x2apic=on,tsc-deadline=on,hypervisor=on,arat=on,mmxext=on,fxsr-opt=on,pdpe1gb=on,3dnowext=on,3dnow=on,cmp-legacy=on,cr8legacy=on,3dnowprefetch=on,osvw=on,amd-no-ssb=on,npt=on,nrip-save=on,vmcb-clean=on,svme-addr-chk=on,monitor=off
\
-m 512 \
-object '{"qom-type":"memory-backend-ram","id":"pc.ram","size":536870912}' \
-overcommit mem-lock=off \
-smp 2,sockets=2,cores=1,threads=1 \
-uuid f7722398-98ca-020a-13e7-93de4f798123 \
-no-user-config \
-nodefaults \
-chardev socket,id=charmonitor,fd=31,server=on,wait=off \
-mon chardev=charmonitor,id=monitor,mode=control \
-rtc base=utc,driftfix=slew \
-global kvm-pit.lost_tick_policy=delay \
-no-hpet \
-no-shutdown \
-global ICH9-LPC.disable_s3=1 \
-global ICH9-LPC.disable_s4=1 \
-boot menu=off,strict=on \
-device
'{"driver":"pcie-root-port","port":16,"chassis":1,"id":"pci.1","bus":"pcie.0","multifunction":true,"addr":"0x2"}'
\
-device
'{"driver":"pcie-root-port","port":17,"chassis":2,"id":"pci.2","bus":"pcie.0","addr":"0x2.0x1"}'
\
-device
'{"driver":"pcie-root-port","port":18,"chassis":3,"id":"pci.3","bus":"pcie.0","addr":"0x2.0x2"}'
\
-device
'{"driver":"pcie-root-port","port":19,"chassis":4,"id":"pci.4","bus":"pcie.0","addr":"0x2.0x3"}'
\
-device
'{"driver":"pcie-root-port","port":20,"chassis":5,"id":"pci.5","bus":"pcie.0","addr":"0x2.0x4"}'
\
-device
'{"driver":"pcie-root-port","port":21,"chassis":6,"id":"pci.6","bus":"pcie.0","addr":"0x2.0x5"}'
\
-device
'{"driver":"pcie-root-port","port":22,"chassis":7,"id":"pci.7","bus":"pcie.0","addr":"0x2.0x6"}'
\
-device
'{"driver":"qemu-xhci","p2":15,"p3":15,"id":"usb","bus":"pci.2","addr":"0x0"}'
\
-device
'{"driver":"virtio-scsi-pci","id":"scsi0","bus":"pci.1","addr":"0x0"}' \
-device
'{"driver":"virtio-serial-pci","id":"virtio-serial0","bus":"pci.3","addr":"0x0"}'
\
-blockdev
'{"driver":"file","filename":"/opt/vm/images/REPLACED_VHOSTNAME/default/REPLACED_VM_NAME.qcow2","node-name":"libvirt-1-storage","auto-read-only":true,"discard":"unmap"}'
\
-blockdev
'{"node-name":"libvirt-1-format","read-only":false,"driver":"qcow2","file":"libvirt-1-storage","backing":null}'
\
-device
'{"driver":"virtio-blk-pci","bus":"pci.4","addr":"0x0","drive":"libvirt-1-format","id":"virtio-disk0","bootindex":1}'
\
-netdev tap,fd=32,id=hostnet0,vhost=on,vhostfd=34 \
-device
'{"driver":"virtio-net-pci","netdev":"hostnet0","id":"net0","mac":"52:54:00:a7:24:12","bus":"pcie.0","addr":"0x3"}'
\
-netdev tap,fd=35,id=hostnet1,vhost=on,vhostfd=36 \
-device
'{"driver":"virtio-net-pci","netdev":"hostnet1","id":"net1","mac":"52:54:00:97:27:bf","bus":"pcie.0","addr":"0x6"}'
\
-chardev socket,id=charchannel0,fd=30,server=on,wait=off \
-device
'{"driver":"virtserialport","bus":"virtio-serial0.0","nr":1,"chardev":"charchannel0","id":"channel0","name":"org.qemu.guest_agent.0"}'
\
-audiodev '{"id":"audio1","driver":"none"}' \
-vnc 127.0.0.1:0,audiodev=audio1 \
-device
'{"driver":"virtio-vga","id":"video0","max_outputs":1,"bus":"pcie.0","addr":"0x1"}'
\
-device
'{"driver":"virtio-balloon-pci","id":"balloon0","bus":"pci.5","addr":"0x0"}'
\
-object
'{"qom-type":"rng-random","id":"objrng0","filename":"/dev/urandom"}' \
-device
'{"driver":"virtio-rng-pci","rng":"objrng0","id":"rng0","bus":"pci.6","addr":"0x0"}'
\
-sandbox
on,obsolete=deny,elevateprivileges=deny,spawn=deny,resourcecontrol=deny \
-msg timestamp=on
On Fri, 22 Apr 2022 at 15:54, Michael Tokarev <m...@tls.msk.ru> wrote:
> 22.04.2022 17:10, Adrian Davey wrote:
> > Package: qemu-system-x86
> > Version: 1:7.0+dfsg-1
> > Severity: normal
> >
> > 2022-04-21T17:07:40.354354Z qemu-system-x86_64: warning: This feature
> depends
> > on other features that were not requested: CPUID.8000000AH:EDX.npt [bit
> 0]
>
> As I said, this is unrelated.
>
> > 2022-04-21T17:07:40.419616Z qemu-system-x86_64: error: failed to set MSR
> > 0xc0000104 to 0x100000000
> > qemu-system-x86_64: ../../target/i386/kvm/kvm.c:2996: kvm_buf_set_msrs:
> > Assertion `ret == cpu->kvm_msr_buf->nmsrs' failed.
>
> And this is the actual issue in the.. KERNEL.
>
> The commit in the kernel which introduce it is this one:
>
> commit 880993138396f8f0be620c425d08f84490c35251
> Author: Maxim Levitsky <mlevi...@redhat.com>
> Date: Tue Mar 22 19:24:48 2022 +0200
>
> KVM: x86: SVM: fix tsc scaling when the host doesn't support it
>
> which is part of 5.16.0 kernel. And the commit which fixed this is
>
> commit e910a53fb4f20aa012e46371ffb4c32c8da259b4
> Author: Maxim Levitsky <mlevi...@redhat.com>
> Date: Wed Feb 23 13:56:49 2022 +0200
>
> KVM: x86: nSVM: disallow userspace setting of MSR_AMD64_TSC_RATIO to
> non default value when tsc scaling disabled
>
> which is a part of 5.16.12 kernel.
>
> I don't know which is 5.16.0-5-amd64, - but it looks like 5.16.18 is
> in Debian now. Is it your current kernel? What does `uname -a' say?
>
> It looks like the only thing you need is to upgrade the kernel.
>
> > Reverting to qemu-system-x86 6.2+dfsg-3 and the VMs start-up perfectly
> fine
> > using the same libvirt xml.
>
> It is because new qemu started using the MSRs it didn't use previously,
> and hit this very issue. It is all in the kernel, -- it is the kernel
> who reports the list of MSRs it supports, and qemu sets only those MSRs
> which the kernel reports are supported. And out of the sudden one of
> the reported-as-supported MSRs turned out to be unsupported by the kernel -
> that's the meaining of this assert().
>
> Please verify your kernel is at least 5.16.18.
>
> Thanks,
>
> /mjt
>
> > Kernel: Linux 5.16.0-5-amd64 (SMP w/2 CPU threads; PREEMPT)
>
