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Re: [rhelv6-list] Clocksource tsc unstable



On 04/16/2011 04:58 PM, carlopmart wrote:
Hi all,

I have installed two rhel6 (fully patched) i386 guests under a x86_64
rhel6 kvm host.

When both guests boots up shows me the following error:

# dmesg | egrep -i 'clock|tsc|time'
kvm-clock: Using msrs 12 and 11
kvm-clock: cpu 0, msr 0:ac2021, boot clock
ACPI: PM-Timer IO Port: 0xb008
kvm-clock: cpu 0, msr 0:2809021, primary cpu clock
..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
Switching to clocksource kvm-clock
rtc_cmos 00:01: setting system clock to 2011-04-16 14:50:05 UTC
(1302965405)
ata_piix 0000:00:01.1: setting latency timer to 64
SELinux: Disabled at runtime.
Clocksource tsc unstable (delta = -110919016 ns)

Why?? Guests needs to run kvm-clock, correct??

# cat /sys/devices/system/clocksource/clocksource0/available_clocksource
kvm-clock acpi_pm

Kernel version on host:

# uname -a
Linux saruman.hpulabs.org 2.6.32-71.24.1.el6.x86_64 #1 SMP Mon Apr 11
09:40:58 CEST 2011 x86_64 x86_64 x86_64 GNU/Linux

/proc/cpuinfo on host:

processor : 0
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 1354
stepping : 3
cpu MHz : 2200.289
cache size : 512 KB
physical id : 0
siblings : 4
core id : 0
cpu cores : 4
apicid : 0
initial apicid : 0
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid
pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm
sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock
bogomips : 4400.57
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 1
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 1354
stepping : 3
cpu MHz : 2200.289
cache size : 512 KB
physical id : 0
siblings : 4
core id : 1
cpu cores : 4
apicid : 1
initial apicid : 1
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid
pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm
sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock
bogomips : 4400.09
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 2
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 1354
stepping : 3
cpu MHz : 2200.289
cache size : 512 KB
physical id : 0
siblings : 4
core id : 2
cpu cores : 4
apicid : 2
initial apicid : 2
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid
pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm
sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock
bogomips : 4399.99
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

processor : 3
vendor_id : AuthenticAMD
cpu family : 16
model : 2
model name : Quad-Core AMD Opteron(tm) Processor 1354
stepping : 3
cpu MHz : 2200.289
cache size : 512 KB
physical id : 0
siblings : 4
core id : 3
cpu cores : 4
apicid : 3
initial apicid : 3
fpu : yes
fpu_exception : yes
cpuid level : 5
wp : yes
flags : fpu vme de pse tsc msr pae mce cx8 apic mtrr pge mca cmov pat
pse36 clflush mmx fxsr sse sse2 ht syscall nx mmxext fxsr_opt pdpe1gb
rdtscp lm 3dnowext 3dnow constant_tsc rep_good nonstop_tsc extd_apicid
pni monitor cx16 popcnt lahf_lm cmp_legacy svm extapic cr8_legacy abm
sse4a misalignsse 3dnowprefetch osvw ibs npt lbrv svm_lock
bogomips : 4399.99
TLB size : 1024 4K pages
clflush size : 64
cache_alignment : 64
address sizes : 48 bits physical, 48 bits virtual
power management: ts ttp tm stc 100mhzsteps hwpstate

Can somebody helps me??

Thanks.


Please, any help?

--
CL Martinez
carlopmart {at} gmail {d0t} com


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