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[Bug 1866870] Re: KVM Guest pauses after upgrade to Ubuntu 20.04


From: tstrike
Subject: [Bug 1866870] Re: KVM Guest pauses after upgrade to Ubuntu 20.04
Date: Thu, 12 Mar 2020 12:47:12 -0000

tstrike39@islandhealthcenter-media:~$ sudo cat  /proc/cpuinfo
processor       : 0
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Quad CPU    Q9400  @ 2.66GHz
stepping        : 10
microcode       : 0xa0b
cpu MHz         : 2416.548
cache size      : 3072 KB
physical id     : 0
siblings        : 4
core id         : 0
cpu cores       : 4
apicid          : 0
initial apicid  : 0
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ht tm pbe syscall nx lm 
constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64 
monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm pti 
tpr_shadow vnmi flexpriority dtherm
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds 
swapgs itlb_multihit
bogomips        : 5303.23
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 1
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Quad CPU    Q9400  @ 2.66GHz
stepping        : 10
microcode       : 0xa0b
cpu MHz         : 2010.620
cache size      : 3072 KB
physical id     : 0
siblings        : 4
core id         : 2
cpu cores       : 4
apicid          : 2
initial apicid  : 2
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ht tm pbe syscall nx lm 
constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64 
monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm pti 
tpr_shadow vnmi flexpriority dtherm
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds 
swapgs itlb_multihit
bogomips        : 5303.23
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 2
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Quad CPU    Q9400  @ 2.66GHz
stepping        : 10
microcode       : 0xa0b
cpu MHz         : 2419.534
cache size      : 3072 KB
physical id     : 0
siblings        : 4
core id         : 1
cpu cores       : 4
apicid          : 1
initial apicid  : 1
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ht tm pbe syscall nx lm 
constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64 
monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm pti 
tpr_shadow vnmi flexpriority dtherm
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds 
swapgs itlb_multihit
bogomips        : 5303.23
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

processor       : 3
vendor_id       : GenuineIntel
cpu family      : 6
model           : 23
model name      : Intel(R) Core(TM)2 Quad CPU    Q9400  @ 2.66GHz
stepping        : 10
microcode       : 0xa0b
cpu MHz         : 1988.790
cache size      : 3072 KB
physical id     : 0
siblings        : 4
core id         : 3
cpu cores       : 4
apicid          : 3
initial apicid  : 3
fpu             : yes
fpu_exception   : yes
cpuid level     : 13
wp              : yes
flags           : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov 
pat pse36 clflush dts acpi mmx fxsr sse sse2 ht tm pbe syscall nx lm 
constant_tsc arch_perfmon pebs bts rep_good nopl cpuid aperfmperf pni dtes64 
monitor ds_cpl vmx smx est tm2 ssse3 cx16 xtpr pdcm sse4_1 xsave lahf_lm pti 
tpr_shadow vnmi flexpriority dtherm
bugs            : cpu_meltdown spectre_v1 spectre_v2 spec_store_bypass l1tf mds 
swapgs itlb_multihit
bogomips        : 5303.23
clflush size    : 64
cache_alignment : 64
address sizes   : 36 bits physical, 48 bits virtual
power management:

-- 
You received this bug notification because you are a member of qemu-
devel-ml, which is subscribed to QEMU.
https://bugs.launchpad.net/bugs/1866870

Title:
  KVM Guest pauses after upgrade to Ubuntu 20.04

Status in QEMU:
  New
Status in qemu package in Ubuntu:
  Incomplete

Bug description:
  Symptom:
  Error unpausing domain: internal error: unable to execute QEMU command 
'cont': Resetting the Virtual Machine is required

  Traceback (most recent call last):
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 75, in 
cb_wrapper
      callback(asyncjob, *args, **kwargs)
    File "/usr/share/virt-manager/virtManager/asyncjob.py", line 111, in tmpcb
      callback(*args, **kwargs)
    File "/usr/share/virt-manager/virtManager/object/libvirtobject.py", line 
66, in newfn
      ret = fn(self, *args, **kwargs)
    File "/usr/share/virt-manager/virtManager/object/domain.py", line 1311, in 
resume
      self._backend.resume()
    File "/usr/lib/python3/dist-packages/libvirt.py", line 2174, in resume
      if ret == -1: raise libvirtError ('virDomainResume() failed', dom=self)
  libvirt.libvirtError: internal error: unable to execute QEMU command 'cont': 
Resetting the Virtual Machine is required

  
  ---

  As outlined here:
  https://bugs.launchpad.net/qemu/+bug/1813165/comments/15

  After upgrade, all KVM guests are in a default pause state. Even after
  forcing them off via virsh, and restarting them the guests are paused.

  These Guests are not nested.

  A lot of diganostic information are outlined in the previous bug
  report link provided. The solution mentioned in previous report had
  been allegedly integrated into the downstream updates.

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