[rhelv6-list] Clocksource tsc unstable

[carlopmart]

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