[vfio-users] kvm_get_msr_common: XXX callbacks suppressed

Sun Mar 26 16:32:53 UTC 2017

and this?

mar 26 18:24:52 sL1pKn07 kernel: ------------[ cut here ]------------
mar 26 18:24:52 sL1pKn07 kernel: WARNING: CPU: 7 PID: 1561 at
arch/x86/kvm/lapic.c:1468 kvm_lapic_expired_hv_timer+0xdb/0x100 [kvm]
mar 26 18:24:52 sL1pKn07 kernel: Modules linked in: vhost_net vhost
macvtap macvlan ipt_REJECT nf_reject_ipv4 rfcomm xt_multiport
ebtable_filter ebta
mar 26 18:24:52 sL1pKn07 kernel:  intel_cstate bluetooth pcspkr
snd_hda_intel drm_kms_helper snd_hda_codec psmouse rfkill drm i2c_i801
snd_hda_core s
mar 26 18:24:52 sL1pKn07 kernel: CPU: 7 PID: 1561 Comm: CPU 2/KVM
Tainted: P        W  O    4.10.5-1-ARCH #1
mar 26 18:24:52 sL1pKn07 kernel: Hardware name: To Be Filled By O.E.M.
To Be Filled By O.E.M./EVGA Classified SR-2, BIOS 080016  08/25/2011
mar 26 18:24:52 sL1pKn07 kernel: Call Trace:
mar 26 18:24:52 sL1pKn07 kernel:  dump_stack+0x63/0x83
mar 26 18:24:52 sL1pKn07 kernel:  __warn+0xcb/0xf0
mar 26 18:24:52 sL1pKn07 kernel:  warn_slowpath_null+0x1d/0x20
mar 26 18:24:52 sL1pKn07 kernel:  kvm_lapic_expired_hv_timer+0xdb/0x100 [kvm]
mar 26 18:24:52 sL1pKn07 kernel:  handle_preemption_timer+0xe/0x20 [kvm_intel]
mar 26 18:24:52 sL1pKn07 kernel:  vmx_handle_exit+0x15a/0x1470 [kvm_intel]
mar 26 18:24:52 sL1pKn07 kernel:  ? atomic_switch_perf_msrs+0x6f/0xa0
[kvm_intel]
mar 26 18:24:52 sL1pKn07 kernel:  kvm_arch_vcpu_ioctl_run+0x871/0x1680 [kvm]
mar 26 18:24:52 sL1pKn07 kernel:  ? vfio_pci_config_rw+0x2b2/0x450 [vfio_pci]
mar 26 18:24:52 sL1pKn07 kernel:  kvm_vcpu_ioctl+0x339/0x630 [kvm]
mar 26 18:24:52 sL1pKn07 kernel:  ? vfio_pci_rw+0x37/0x90 [vfio_pci]
mar 26 18:24:52 sL1pKn07 kernel:  ? vfio_pci_read+0x19/0x20 [vfio_pci]
mar 26 18:24:52 sL1pKn07 kernel:  ? vfio_device_fops_read+0x24/0x30 [vfio]
mar 26 18:24:52 sL1pKn07 kernel:  ? __vfs_read+0x37/0x130
mar 26 18:24:52 sL1pKn07 kernel:  do_vfs_ioctl+0xa3/0x5f0
mar 26 18:24:52 sL1pKn07 kernel:  ? __fget+0x77/0xb0
mar 26 18:24:52 sL1pKn07 kernel:  SyS_ioctl+0x79/0x90
mar 26 18:24:52 sL1pKn07 kernel:  entry_SYSCALL_64_fastpath+0x1a/0xa9
mar 26 18:24:52 sL1pKn07 kernel: RIP: 0033:0x7f082e89c0d7
mar 26 18:24:52 sL1pKn07 kernel: RSP: 002b:00007f08254599a8 EFLAGS:
00000246 ORIG_RAX: 0000000000000010
mar 26 18:24:52 sL1pKn07 kernel: RAX: ffffffffffffffda RBX:
000000000000ae80 RCX: 00007f082e89c0d7
mar 26 18:24:52 sL1pKn07 kernel: RDX: 0000000000000000 RSI:
000000000000ae80 RDI: 0000000000000011
mar 26 18:24:52 sL1pKn07 kernel: RBP: 0000560cc5a26910 R08:
0000560cc3ddfd50 R09: 0000000000000000
mar 26 18:24:52 sL1pKn07 kernel: R10: 0000070000000088 R11:
0000000000000246 R12: 0000000000000000
mar 26 18:24:52 sL1pKn07 kernel: R13: 00007f08324d6000 R14:
0000000000000000 R15: 0000560cc5a26910
mar 26 18:24:52 sL1pKn07 kernel: ---[ end trace 5f7aa4cb2beaba89 ]---

I cach this in the middle of the tons of callbacks messages

2017-03-16 8:37 GMT+01:00 Hristo Iliev <hristo at hiliev.eu>:
> Hi,
>
> You could look up the MSR numbers in Intel's CPU manual. Those are most
> likely the power control and frequency scaling registers. Should be safe to
> ignore them.
>
> Cheers,
> Hristo
>
>
> Am 15.03.2017 23:25, schrieb sL1pKn07 SpinFlo:
>>
>> Hi
>>
>> since, sincerely, idk, i get tons of this message in my dmesg
>>
>>
>> [82704.254657] kvm_get_msr_common: 430 callbacks suppressed
>> [82704.254660] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0xce
>> [82704.254676] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x1fc
>> [82704.254687] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x1a4
>> [82704.254694] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x1a4
>> [82704.254704] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x1ad
>> [82704.254725] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x1a2
>> [82704.254886] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x3f8
>> [82704.254901] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x3f9
>> [82704.254910] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x3fa
>> [82704.254926] kvm [15180]: vcpu0, guest rIP: 0xfffff809eca717f3
>> ignored rdmsr: 0x3fc
>>
>> Should i worry?
>>
>> └───╼  uname -a
>> Linux sL1pKn07 4.9.11-1-ARCH #1 SMP PREEMPT Sun Feb 19 13:45:52 UTC
>> 2017 x86_64 GNU/Linux
>>
>> └───╼  qemu-x86_64 -version
>> qemu-x86_64 version 2.8.50 (v2.8.0-2135-gdd4d257821-dirty)
>>
>> └───╼  libvirtd --version
>> libvirtd (libvirt) 3.2.0
>> (from git)
>>
>> └───╼  cat /etc/modprobe.d/kvm.conf
>> options kvm ignore_msrs=1
>>
>> └───╼  cat /etc/modprobe.d/vfio.conf
>> options vfio_pci ids=10de:17c2,10de:0fb0
>> options vfio_iommu_type1 allow_unsafe_interrupts=1
>>
>> 2x Xeon x5650
>> EVGA SR-2
>> host: Nvidia Titan Black
>> Guest: Nvidia Titan X (maxwell)
>> 48Gb ram
>> SDD guest: Kingston SSDnow v300 240Gb (vfio driver)
>> XML: https://sl1pkn07.wtf/paste/view/6b1ade1f
>>
>> gretings
>>
>> _______________________________________________
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