Re: [Xen-users] VT 64bit kernel with >4Gb RAM

[Tim Post <tim.post@xxxxxxxxxxxxxxx>]

Just build from source using this tutorial as a guide :

http://mark.foster.cc/wiki/index.php/Xen_3.0.x_on_Debian_Sarge

Note the notes for the hugemem kernel. I'd recommend you do an actual
menuconfig and turn off the following junk that a server doesn't
typically use (unless this isn't a server) -

In cmos first (then kernel) kill :

Parallel Ports
Serial Ports (unless you use them)
USB support (unless you need it)

... etc 

I think you'll be happy that the system is seeing all available RAM, but
kind of disappointed with the overhead otherwise spent on things you'll
never use :)

HTH
-Tim

On Tue, 2006-09-19 at 17:12 +0200, Guillaume Lenoir wrote:
>     Hi there,
>  
> I have the lucky task to setup a Xen system.
> my plateform is a dell 2950 with 16Gb of RAM.
> 
> I got as far as setting up debian sarge and xen following
> http://www.debian-administration.org/articles/423
> and overcoming some specific difficulties
> (http://kmuto.jp/b.cgi/debian/d-i-2615.htm &
> http://wiki.ncsa.uiuc.edu/wiki/Dell_PE1950_NIC_Firmware_Workaround)
> 
> But, my concern now, while I'm struglling to setup my 1rst VM, is that I
> don't see all the RAM.
> Still I 'm using both dual cores as cat /proc/cpuinfo lists 4 processors
> 
> >From my understanding, if I had a 64bit kernel I'd see them (pae beeing
> only for 32bit systems, right ?)
> And I'm guessing if I want to VMise 64bit OSes, I'll need it.
> 
> So :
> Is there a debian prepackaged kernel that'd do the trick, or do I have
> to compile my own ?
> In the afirmative, what patch should I apply and where is that friendly
> 64bit option ?
> Is there something else I'm missing ?
> 
> Thanks,
> GdL.
> 
> references :
> 
> # uname -r
> 2.6.16-1-xen-686              (the one from "deb
> http://www.backports.org/debian/ sarge-backports main")
> 
> # cat /proc/meminfo
> MemTotal:       451584 kB     that should be 16000000+ kB
> 
> # cat /proc/cpuinfo
> processor       : 0
> vendor_id       : GenuineIntel
> cpu family      : 6
> model           : 15
> model name      : Intel(R) Xeon(R) CPU            5150  @ 2.66GHz
> stepping        : 6
> cpu MHz         : 2660.088
> cache size      : 4096 KB
> fdiv_bug        : no
> hlt_bug         : no
> f00f_bug        : no
> coma_bug        : no
> fpu             : yes
> fpu_exception   : yes
> cpuid level     : 10
> wp              : yes
> flags           : fpu tsc msr pae mce cx8 apic mtrr mca cmov pat pse36
> clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni
> monitor ds_cpl vmx est tm2 cx16 xtpr lahf_lm
> bogomips        : 5327.57
> 
> (.... 4 times : # 0 to 3)
> 
> PS : if I can't have it all by thursday, my boss'll end-up buying GSX
> ... =o(
> BTW , is it conceivable to run ESX and/or GSX as a VMs on XEN ? (kindda
> russian dolls concept)
> 
> _______________________________________________
> Xen-users mailing list
> Xen-users@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-users
> 
> 


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