Hello everybody,
I just discovered in my CPU
model name : Intel(R) Xeon(R) CPU E5430 @ 2.66GHz
under
[r...@pcfarm-new ~]# uname -a
Linux pcfarm-new.pnpi.spb.ru 2.6.18-194.3.1.el5xen #1 SMP Fri May 7
02:05:32 EDT 2010 x86_64 x86_64 x86_64 GNU/Linux
that there is no flag 'vmx'
[r...@pcfarm-new ~]# grep vmx /proc/cpuinfo; echo $?
1
At the same time when I boot another kernel 'xen.gz-2.6.18-128.1.1.el5'
the flag 'vmx' is in place
I tested the same on different machine with different CPU
Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz
and found out exactly same effect:
under kernel
[r...@pcfarm-10 ~]# uname -a
Linux pcfarm-10.pnpi.spb.ru 2.6.18-92.1.6.el5xen #1 SMP Wed Jun 25
12:56:52 EDT 2008 x86_64 x86_64 x86_64 GNU/Linux
[r...@pcfarm-10 ~]# grep vmx /proc/cpuinfo
flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni
monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
flags : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
clflush dts acpi mmx fxsr sse sse2 ss ht tm syscall nx lm constant_tsc pni
monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
and with kernel
xen.gz-2.6.18-194.3.1.el5
the flag 'vmx' is NOT seen.
Does anybody know something about the case ?
In particular I am interesting does the kernel xen.gz-2.6.18-194.3.1.el5
use Intel VT feature as expected or does not ?
Many thanks in advance,
Andrey
____________________________________________________________________
NAME: Andrey Y. Shevel (Chevel) : EMAIL: andrey.she...@pnpi.spb.ru \
Computing Systems Department : http://hepd.pnpi.spb.ru/CSD |
TEL : +7(81371)36040 | POST ADDRESS: Petersburg Nuclear Physics Inst. |
FAX : +7(81371)36040 | 188300, Gatchina, Leningrad district, Russia. |
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