Re: [Xen-devel] Scrubbing free ram

[Pasi Kärkkäinen <pasik@xxxxxx>]

On Thu, Apr 29, 2010 at 10:48:59AM -0400, Konrad Rzeszutek Wilk wrote:
> > (XEN) *** LOADING DOMAIN 0 ***
> > (XEN)  Xen  kernel: 32-bit, PAE, lsb
> > (XEN)  Dom0 kernel: 32-bit, PAE, lsb, paddr 0x400000 -> 0xbfb000
> > (XEN) PHYSICAL MEMORY ARRANGEMENT:
> > (XEN)  Dom0 alloc.:   000000003c000000->000000003e000000 (960235 pages to be
> > allocated)
> > (XEN) VIRTUAL MEMORY ARRANGEMENT:
> > (XEN)  Loaded kernel: c0400000->c0bfb000
> > (XEN)  Init. ramdisk: c0bfb000->c1329e00
> > (XEN)  Phys-Mach map: c132a000->c16dbbac
> > (XEN)  Start info:    c16dc000->c16dc47c
> > (XEN)  Page tables:   c16dd000->c16ee000
> > (XEN)  Boot stack:    c16ee000->c16ef000
> > (XEN)  TOTAL:         c0000000->c1800000
> > (XEN)  ENTRY ADDRESS: c098d000
> > (XEN) Dom0 has maximum 4 VCPUs
> > (XEN) Scrubbing Free RAM: .done.
> > (XEN) Xen trace buffers: disabled
> > (XEN) Std. Loglevel: Errors and warnings
> > (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
> > (XEN) Xen is relinquishing VGA console.
> > (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to
> > Xen)
> > (XEN) Freed 136kB init memory.
> > mapping kernel into physical memory
> > about to get started...
> > (XEN) traps.c:2309:d0 Domain attempted WRMSR 000002ff from 00000000:00000c06
> > to 00000000:00000000.
> > (XEN) traps.c:2309:d0 Domain attempted WRMSR 00000277 from 00000501:00070406
> > to 00070106:00070106.
> > 
> > 
> > My grub.conf is:
> > 
> > title Xen(2.6.31.13)
> >     root (hd0,10)
> >     kernel /boot/xen.gz console=com1,vga com1=9600,8n1
> >     module /boot/vmlinuz-2.6.31.13 root=/dev/sda1 ro nomodeset
> 
> Was this kernel boot line the same as the previous kernel you used?
> Also, please consult the http://wiki.xensource.com/xenwiki/XenParavirtOps
> which Pasi refered to you earlier, and look in the "Are there more debugging
> options I could enable to troubleshoot booting problems?"
> 

I wonder if "earlyprintk=xen" for the pvops dom0 kernel would help here..
And since you seem to be using a serial console make it "earlyprintk=xen 
console=hvc0"

-- Pasi


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