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Bug 1571171 - Guest reboot failed in the destination when migrate from 7.2 host to 7.5 host
Summary: Guest reboot failed in the destination when migrate from 7.2 host to 7.5 host
Keywords:
Status: CLOSED DUPLICATE of bug 1411275
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.5
Hardware: Unspecified
OS: Unspecified
high
high
Target Milestone: rc
: ---
Assignee: Hai Huang
QA Contact: jingzhao
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2018-04-24 08:50 UTC by jingzhao
Modified: 2018-04-27 10:54 UTC (History)
10 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2018-04-27 10:54:36 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description jingzhao 2018-04-24 08:50:08 UTC 
Description of problem:
Guest reboot failed in the destination when migrate from 7.2 host to 7.5 host

Version-Release number of selected component (if applicable):
src version(7.2host):
[root@hp-dl385pg8-12 home]# rpm -qa |grep qemu-kvm-rhev
qemu-kvm-rhev-2.3.0-31.el7_2.26.x86_64
qemu-kvm-rhev-debuginfo-2.3.0-31.el7_2.26.x86_64
[root@hp-dl385pg8-12 home]# rpm -qa |grep seabios
seabios-bin-1.7.5-11.el7.noarch
[root@hp-dl385pg8-12 home]# rpm -qa |grep ipxe
ipxe-roms-20130517-8.gitc4bce43.el7_2.1.noarch
ipxe-roms-qemu-20130517-8.gitc4bce43.el7_2.1.noarch

dst version(7.5 host):
[root@hp-dl385pg8-13 ~]# uname -r
3.10.0-862.1.1.el7.x86_64
[root@hp-dl385pg8-13 ~]# rpm -qa |grep seabios
seabios-bin-1.11.0-2.el7.noarch
seabios-1.11.0-2.el7.x86_64
[root@hp-dl385pg8-13 ~]# rpm -qa |grep ipxe
ipxe-roms-qemu-20170123-2.git4e85b27.el7.noarch
ipxe-roms-20170123-2.git4e85b27.el7.noarch
[root@hp-dl385pg8-13 ~]# rpm -qa |grep qemu-kvm-rhev
qemu-kvm-rhev-2.10.0-21.el7_5.2.x86_64
qemu-kvm-rhev-debuginfo-2.10.0-21.el7_5.2.x86_64


How reproducible:
2/3

Steps to Reproduce:
1. Boot guest with qemu command line [1] in the src host and boot guest with  " -incoming tcp:0:5555" in the dest host

2. migrate from src to dst with "migrate -d tcp: hostip:5555, migrate_set_downtime 10 migrate_set_speed 1G" in the hmp

3. reboot guest in the guest after migrate finished

Actual results:
1.No response in the guest and guest even not login the seabios

2.Guest can reboot after execute "info cpus" 2 times
(qemu) info cpus
* CPU #0: pc=0x00000000000fd1f6 thread_id=11420
  CPU #1: pc=0x00000000000f7bef (halted) thread_id=11421
  CPU #2: pc=0x00000000000f7bef (halted) thread_id=11422
  CPU #3: pc=0x00000000000f7bef (halted) thread_id=11423
  CPU #4: pc=0x00000000000f7bef (halted) thread_id=11424
  CPU #5: pc=0x00000000000f7bef (halted) thread_id=11425
  CPU #6: pc=0x00000000000f7bef (halted) thread_id=11426
  CPU #7: pc=0x00000000000f7bef (halted) thread_id=11427
  CPU #8: pc=0x00000000000f7bef (halted) thread_id=11428
  CPU #9: pc=0x00000000000f7bef (halted) thread_id=11429
  CPU #10: pc=0x00000000000f7bef (halted) thread_id=11430
  CPU #11: pc=0x00000000000f7bef (halted) thread_id=11431
  CPU #12: pc=0x00000000000f7bef (halted) thread_id=11432
  CPU #13: pc=0x00000000000f7bef (halted) thread_id=11433
  CPU #14: pc=0x00000000000f7bef (halted) thread_id=11434
  CPU #15: pc=0x00000000000f7bef (halted) thread_id=11435
(qemu) info cpus
* CPU #0: pc=0x00000000000fd1f4 thread_id=11420
  CPU #1: pc=0x00000000000f7bef (halted) thread_id=11421
  CPU #2: pc=0x00000000000f7bef (halted) thread_id=11422
  CPU #3: pc=0x00000000000f7bef (halted) thread_id=11423
  CPU #4: pc=0x00000000000f7bef (halted) thread_id=11424
  CPU #5: pc=0x00000000000f7bef (halted) thread_id=11425
  CPU #6: pc=0x00000000000f7bef (halted) thread_id=11426
  CPU #7: pc=0x00000000000f7bef (halted) thread_id=11427
  CPU #8: pc=0x00000000000f7bef (halted) thread_id=11428
  CPU #9: pc=0x00000000000f7bef (halted) thread_id=11429
  CPU #10: pc=0x00000000000f7bef (halted) thread_id=11430
  CPU #11: pc=0x00000000000f7bef (halted) thread_id=11431
  CPU #12: pc=0x00000000000f7bef (halted) thread_id=11432
  CPU #13: pc=0x00000000000f7bef (halted) thread_id=11433
  CPU #14: pc=0x00000000000f7bef (halted) thread_id=11434
  CPU #15: pc=0x00000000000f7bef (halted) thread_id=11435


Expected results:
Guest can reboot successfully even not execute hmp command

Additional info:

Also failed with kernel-3.10.0-862.el7.x86_64, kernel-3.10.0-858.el7.x86_64 and kernel-3.10.0-850.el7.x86_64


Host info:
[root@hp-dl385pg8-12 home]# cat /proc/cpuinfo 
processor	: 0
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 32
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 1
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 64
initial apicid	: 32
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 2
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 1
cpu cores	: 4
apicid		: 33
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 3
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 1
cpu cores	: 4
apicid		: 65
initial apicid	: 33
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 4
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 2
cpu cores	: 4
apicid		: 34
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 5
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 2
cpu cores	: 4
apicid		: 66
initial apicid	: 34
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 6
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 3
cpu cores	: 4
apicid		: 35
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 7
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 3
cpu cores	: 4
apicid		: 67
initial apicid	: 35
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 8
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 36
initial apicid	: 4
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 9
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 0
cpu cores	: 4
apicid		: 68
initial apicid	: 36
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 10
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 1
cpu cores	: 4
apicid		: 37
initial apicid	: 5
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 11
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 1
cpu cores	: 4
apicid		: 69
initial apicid	: 37
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 12
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 2
cpu cores	: 4
apicid		: 38
initial apicid	: 6
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 13
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 2
cpu cores	: 4
apicid		: 70
initial apicid	: 38
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 14
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 0
siblings	: 8
core id		: 3
cpu cores	: 4
apicid		: 39
initial apicid	: 7
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.90
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro

processor	: 15
vendor_id	: AuthenticAMD
cpu family	: 21
model		: 2
model name	: AMD Opteron(tm) Processor 6320                 
stepping	: 0
microcode	: 0x6000832
cpu MHz		: 2800.000
cache size	: 2048 KB
physical id	: 1
siblings	: 8
core id		: 3
cpu cores	: 4
apicid		: 71
initial apicid	: 39
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 mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb rdtscp lm constant_tsc rep_good nopl nonstop_tsc extd_apicid amd_dcm aperfmperf pni pclmulqdq monitor ssse3 fma cx16 sse4_1 sse4_2 popcnt aes xsave avx f16c lahf_lm cmp_legacy svm extapic cr8_legacy abm sse4a misalignsse 3dnowprefetch osvw ibs xop skinit wdt lwp fma4 tce nodeid_msr tbm topoext perfctr_core perfctr_nb arat cpb hw_pstate retpoline_amd npt lbrv svm_lock nrip_save tsc_scale vmcb_clean flushbyasid decodeassists pausefilter pfthreshold bmi1
bogomips	: 5585.36
TLB size	: 1536 4K pages
clflush size	: 64
cache_alignment	: 64
address sizes	: 48 bits physical, 48 bits virtual
power management: ts ttp tm 100mhzsteps hwpstate cpb eff_freq_ro


qemu command line [1]
/usr/libexec/qemu-kvm \
-name rhel7 \
-machine pc-i440fx-rhel7.2.0,accel=kvm,usb=off \
-realtime mlock=off \
-cpu Opteron_G5 \
-sandbox off \
-m 7680   \
-smp 16,cores=2,threads=1,sockets=8,maxcpus=16  \
-uuid 49a3438a-70a3-4ba8-92ce-3a05e0934608 \
-no-user-config \
-nodefaults \
-rtc base=utc,driftfix=slew \
-global kvm-pit.lost_tick_policy=discard \
-no-hpet \
-global PIIX4_PM.disable_s3=1 \
-global PIIX4_PM.disable_s4=1 \
-boot order=c,menu=on,splash-time=3000,strict=on \
-device ich9-usb-ehci1,id=usb0,bus=pci.0,addr=0x5.0x7 \
-device ich9-usb-uhci1,masterbus=usb0.0,firstport=0,bus=pci.0,multifunction=on,addr=0x5 \
-device ich9-usb-uhci2,masterbus=usb0.0,firstport=2,bus=pci.0,addr=0x5.0x1 \
-device ich9-usb-uhci3,masterbus=usb0.0,firstport=4,bus=pci.0,addr=0x5.0x2 \
-device virtio-scsi-pci,id=scsi0,cmd_per_lun=234,bus=pci.0,addr=0x8 \
-device virtio-serial-pci,id=virtio-serial0,bus=pci.0,addr=0x7 \
-drive file=/mnt/virtio-win-1.9.4.iso,if=none,id=drive-ide0-1-0,readonly=on,format=raw \
-device ide-cd,bus=ide.1,unit=0,drive=drive-ide0-1-0,id=ide0-1-0 \
-drive file=/mnt/virtio-win-1.9.4_amd64.vfd,if=none,id=drive-fdc0-0-0,format=raw,cache=none \
-global isa-fdc.driveA=drive-fdc0-0-0 \
-drive file=/mnt/virtio-win-1.9.4_x86.vfd,if=none,id=drive-fdc0-0-1,format=raw,cache=none \
-global isa-fdc.driveB=drive-fdc0-0-1 \
-drive file=/mnt/virtio-blk-disk,if=none,id=drive-virtio-disk0,format=raw,cache=none,discard=unmap,werror=stop,rerror=stop,aio=threads \
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0x9,drive=drive-virtio-disk0,id=virtio-disk0 \
-drive file=/mnt/win8-64.1-virtio-scsi.qcow2,if=none,id=drive-scsi-disk,format=qcow2,cache=none,werror=stop,rerror=stop \
-device virtio-scsi-pci,id=scsi1,addr=0x13 \
-device scsi-hd,drive=drive-scsi-disk,bus=scsi1.0,id=data-disk2,bootindex=1 \
-chardev spicevmc,id=charchannel0,name=vdagent \
-device virtserialport,bus=virtio-serial0.0,nr=1,chardev=charchannel0,id=channel0,name=com.redhat.spice.0 \
-chardev socket,id=charchannel1,path=/mnt/test,server,nowait \
-device virtserialport,bus=virtio-serial0.0,nr=2,chardev=charchannel1,id=channel1,name=org.qemu.guest_agent.0 \
-device usb-tablet,id=input0 \
-device intel-hda,id=sound0,bus=pci.0,addr=0x4 \
-device hda-duplex,id=sound0-codec0,bus=sound0.0,cad=0 \
-device intel-hda,id=sound1,bus=pci.0,addr=0x6 \
-device hda-micro,id=sound1-codec0,bus=sound1.0 \
-device intel-hda,id=sound2,bus=pci.0,addr=0x17 \
-device hda-output,id=sound2-codec0,bus=sound2.0,cad=0 \
-device ich9-intel-hda,id=sound3,bus=pci.0,addr=0x18 \
-device hda-duplex,id=sound3-codec0,bus=sound3.0,cad=0 \
-chardev spicevmc,id=charredir0,name=usbredir \
-device usb-redir,chardev=charredir0,id=redir0 \
-chardev spicevmc,id=charredir1,name=usbredir \
-device usb-redir,chardev=charredir1,id=redir1 \
-chardev spicevmc,id=charredir2,name=usbredir \
-device usb-redir,chardev=charredir2,id=redir2 \
-chardev spicevmc,id=charredir3,name=usbredir \
-device usb-redir,chardev=charredir3,id=redir3 \
-device usb-host,id=hostdev0 \
-device pvpanic,ioport=1285 -msg timestamp=on \
-netdev tap,id=hostnet0,vhost=on,id=hostnet0,script=/etc/qemu-ifup \
-device virtio-net-pci,netdev=hostnet0,id=virtio-net-pci0,mac=b6:af:42:b8:46:18,bus=pci.0,addr=0x14 \
-netdev tap,id=hostnet1,vhost=off,script=/etc/qemu-ifup  \
-device e1000,netdev=hostnet1,id=virtio-net-pci1,mac=b6:2f:a8:85:72:6c,bus=pci.0,addr=0x15,multifunction=off \
-netdev tap,id=hostnet2,vhost=off,script=/etc/qemu-ifup \
-device rtl8139,netdev=hostnet2,id=virtio-net-pci2,mac=4e:63:28:bc:b1:25,bus=pci.0,addr=0x16,multifunction=off \
-netdev tap,id=hostnet3,vhost=off,script=/etc/qemu-ifup \
-device e1000-82540em,netdev=hostnet3,id=virtio-net-pci3,mac=4e:63:28:bc:b1:35,bus=pci.0,addr=0x1e,multifunction=off \
-drive file=/mnt/ide-disk,if=none,id=drive-data-disk,format=raw,cache=none,aio=native,werror=stop,rerror=stop,copy-on-read=off,media=disk \
-device ide-hd,drive=drive-data-disk,id=system-disk,logical_block_size=512,physical_block_size=512,min_io_size=32,opt_io_size=64,discard_granularity=512,ver=fuxc-ver,bus=ide.0,unit=0  \
-device ich9-usb-uhci6,id=uhci6,bus=pci.0,addr=0xa \
-device usb-kbd,id=kdb0,bus=uhci6.0 \
-device ich9-usb-uhci5,id=uhci5,bus=pci.0,addr=0xb \
-device usb-mouse,id=mouse0,bus=uhci5.0 \
-device usb-ehci,id=ehci,bus=pci.0,addr=0xe \
-device usb-bot,id=bot2,bus=ehci.0 \
-drive file=/mnt/bot-disk2,id=usb-disk2,if=none,format=qcow2 \
-device scsi-hd,bus=bot2.0,scsi-id=0,lun=0,drive=usb-disk2,id=usb-disk2 \
-device piix3-usb-uhci,id=usb,bus=pci.0,addr=0xf \
-device usb-bot,id=bot3,bus=usb.0 \
-drive file=/mnt/virtio-win-1.9.4.iso,if=none,id=usb-cdrom3,format=raw,readonly=on \
-device scsi-cd,bus=bot3.0,scsi-id=0,lun=1,drive=usb-cdrom3,id=usb-cdrom3 \
-drive file=/mnt/bot-disk3,id=usb-disk3,if=none,format=qcow2 \
-device scsi-hd,bus=bot3.0,scsi-id=0,lun=0,drive=usb-disk3,id=usb-disk3 \
-device ich9-usb-uhci3,id=uhci,bus=pci.0,addr=0x10 \
-device usb-storage,drive=drive-usb-0,id=usb-0,removable=on,bus=uhci.0,port=1 \
-drive file=/mnt/usb-uhci,if=none,id=drive-usb-0,media=disk,format=qcow2 \
-device ich9-usb-ehci1,id=ehci1,bus=pci.0,addr=0x11 \
-device usb-storage,drive=drive-usb-1,id=usb-1,removable=on,bus=ehci1.0,port=1 \
-drive file=/mnt/usb-ehci,if=none,id=drive-usb-1,media=disk,format=qcow2 \
-device nec-usb-xhci,id=xhci1,bus=pci.0,addr=0x12 \
-device usb-storage,drive=drive-usb-2,id=usb-2,removable=on,bus=xhci1.0,port=1 \
-drive file=/mnt/usb-xhci,if=none,id=drive-usb-2,media=disk,format=qcow2 \
-watchdog ib700 -watchdog-action reset \
-device virtio-rng-pci,id=rng0,bus=pci.0,addr=0x1c \
-device virtio-balloon-pci,id=balloon0,bus=pci.0,addr=0x1d \
-k en-us \
-spice port=5910,addr=0.0.0.0,disable-ticketing,seamless-migration=on \
-device qxl-vga,id=video0,ram_size=134217728,vram_size=67108864,vgamem_mb=16,bus=pci.0,addr=0x2 \
-chardev socket,id=seabioslog_id,path=/var/tmp/seabios,server,nowait \
-device isa-debugcon,chardev=seabioslog_id,iobase=0x402 \
-monitor stdio \
-device usb-tablet \
-vnc :1 \


Did not reproduce the issue when do the migration in the same 7.5 host
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