When booting a native Linux kernel:
Linux version 2.6.5-7.111.19-default (geeko@buildhost) (gcc version 3.3.3
(SuSE Linux)) #1 Fri Dec 10 15:10:58 UTC 2004
BIOS-provided physical RAM map:
BIOS-e820: 0000000000000000 - 000000000009f800 (usable)
BIOS-e820: 000000000009f800 - 00000000000a0000 (reserved)
BIOS-e820: 00000000000e7000 - 0000000000100000 (reserved)
BIOS-e820: 0000000000100000 - 00000000040fd800 (usable)
BIOS-e820: 00000000040fd800 - 00000000040ff800 (ACPI data)
BIOS-e820: 00000000040ff800 - 00000000040ffc00 (ACPI NVS)
BIOS-e820: 00000000040ffc00 - 0000000014000000 (usable)
BIOS-e820: 00000000fffe7000 - 0000000100000000 (reserved)
693MB vmalloc/ioremap area available.
0MB HIGHMEM available.
320MB LOWMEM available.
On node 0 totalpages: 81920
DMA zone: 4096 pages, LIFO batch:1
Normal zone: 77824 pages, LIFO batch:16
HighMem zone: 0 pages, LIFO batch:1
When booting Xen (with dom0_mem=8192):
(Manually copy/pasted from an old altos-4 terminal, may contain typos)
(XEN) Initialised 64 MB memory (16637 pages) on a 64MB machine
(XEN) Xen heap size is 10792KB
(XEN) CPU0: Before vendor init, caps: 0383f9ff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0383f9ff 00000000 00000000 00000000
(XEN) ACPI: RSDP (v000 PTLTD ) @ 0x00f6ac0
< cut 3 more ACPI lines >
(XEN) Using schedule: Borrow Virtual Time (bvt)
(XEN) Initializing CPU#0
(XEN) Detected 597.418 MHz processor.
(XEN) Local APIC disabled by BIOS -- reenabling.
(XEN) Found and enabled local APIC!
(XEN) CPU0: Before vendor init, caps: 0383f9ff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0383f9ff 00000000 00000000 00000000
(XEN) CPU0 booted
(XEN) SMP motherboard not detected.
(XEN) enabled ExtINT on CPU#0
(XEN) ESR value before enabling vector: 00000000
(XEN) ESR value after enabling vector: 00000000
(XEN) Using local APIC timer interrupts.
(XEN) Calibrating APIC timer for CPU0...
(XEN) ..... CPU speed is 597.4081 MHz.
(XEN) ..... Bus speed is 99.5678 MHz.
(XEN) ..... bus_scale = 0x000065F6
(XEN) Time init:
(XEN) .... System Time: 20001221ns
(XEN) .... cpu_freq: 00000000:239BDA70
(XEN) .... scale: 00000001:AC830056
(XEN) .... Wall Clock: 1104266654s 60000us
(XEN) PCI: PCI BIOS revision 2.10 entry at 0xfd983, last bus=1
(XEN) PCI: Using configuration type 1
(XEN) PCI: Probing PCI hardware
(XEN) PCI: Probing PCI hardware (bus 00)
(XEN) PCI: Using IRQ router PIIX/ICH [8086/7110] at 00:07.0
(XEN) Limiting direct PCI transfers.
(XEN) *** LOADING DOMAIN 0 ***
(XEN) Xen-ELF header found:
'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=2.0,VIRT_BASE=0xC0000000,LOADER=generic,PT_MODE_WRITABLE'
(XEN) PHYSICAL MEMORY ARRANGEMENT:
(XEN) Kernel image: 02800000->02bfcf68
(XEN) Initrd image: 00000000->00000000
(XEN) Dom0 alloc.: 02c00000->03400000
(XEN) VIRTUAL MEMORY ARRANGEMENT:
(XEN) Loaded kernel: c0100000->c0526640
(XEN) Init. ramdisk: c0527000->c0527000
(XEN) Phys-Mach map: c0527000->c0529000
(XEN) Page tables: c0529000->c052c000
(XEN) Start info: c052c000->c052d000
(XEN) Boot stack: c052d000->c052e000
(XEN) TOTAL: c0000000->c0800000
(XEN) ENTRY ADDRESS: c01000000
(XEN) Scrubbing DOM0 RAM: .done.
(XEN) Scrubbing Free RAM: ..done.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input
to Xen).
Linux version 2.6.9-xen0 (xenod@xxxxxxxxxxxxxxxxxxxxxx (gcc version 3.2.2 20030
222 (Red Hat linux 3.2.2-5) #1 Wed Nov 17 22:25:47 GMT 2004
BIOS-provided physical RAM map:
Xen: 0000000000000000 - 000000000800000 (usable)
8MB LOWMEM available.
<then boots, panicss and reboots within 1 second)
It seems it detects only 64MB RAM, how to fix that? Or is there something
else not as it should be.
Floris Martens
On Tue, 28 Dec 2004, Keir Fraser wrote:
>
> When Xen boots, how much memory does it say it thinks your system has?
> What is the output from booting a native Linux kernel (in particular
> any lines very early that print the 'e820 map')?
>
> -- Keir
>
> > Dear list,
> >
> > I'm trying to get Xen working on a P3-600E with 320 MB RAM. (256+64)
> >
> > It has suse linux 9.1 installed on it, and I tried to get xen running with
> > both the binary download from the xen pages and the suse xen packages
> > mentioned on this list some days ago.
> >
> > Both 'install packages/kernels' lead to the same error:
> >
> > (XEN) Not enough memory for DOM0 memory reservation
> >
> > Whereafter a poweroff/poweron is the only way ouy. (Machine doesn't have a
> > reset button, keyboard ctrl-alt-del does not respond)
> >
> > The grub entries are:
> > title Xen 2.0 / XenLinux 2.6.9
> > kernel (hd0,1)/boot/xen.gz dom0_mem=131072 console=vga
> > module (hd0,1)/boot/vmlinuz-2.6.9-xen0 root=/dev/hda2 ro
> > console=tty0
> >
> > title Xen2
> > kernel (hd0,1)/boot/xen.gz dom0_mem=65536
> > module (hd0,1)/boot/vmlinuz-2.6.8-24.8-xen root=/dev/hda2 vga=0x314
> > splash=silent desktop resume=/dev/hda1 showopts
> > module (hd0,1)/boot/initrd-2.6.8-24.8-xen.gz
> >
> > Lowering the dom0_mem anything between 8192 to 13300 works, but then the
> > kernel reboots during the boot process (for low values) and for higher
> > values the boot script processes get killed by oom_kill, who eventually
> > killes init too, kernel panics->reboot. Setting dom0_mem to 13313 or
> > anything bigger doesn't work, produces the error "Not enough memory for
> > DOM0 memory reservation".
> >
> > What happens between 13300 and 13313 is untested, I think it has been
> > narrowed down sufficiently.
> >
> > How can I solve this ? And/or what could I be doing wrong?
> >
> > Thanks in advance,
> >
> > Floris Martens
> >
> >
> > -------------------------------------------------------
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>
>
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