RAMDISK-Boot: Not enough RAM for domain 0 allocation.

["viets@work.de" <viets@work.de>]

Hello,
I'm trying to boot xen-3.3 from network with linux on a ramdisk, but
this fails with the output below:

this are my boot-settings:

default xen-linux
prompt 1
timeout 10

label xen-linux
  kernel mboot.c32
  append xen-3.3.0.gz noreboot dom0_mem=2097152 console=com2
com2=115200,8n1 --- vmlinuz-2.6.18.8-xen0 root=/dev/ram
ramdisk_size=1048576 console=tty0 console=ttyS1,115200 --- jobserver.img.gz



 \ \/ /___ _ __   |___ / |___ / / _ \
  \  // _ \ '_ \    |_ \   |_ \| | | |
  /  \  __/ | | |  ___) | ___) | |_| |
 /_/\_\___|_| |_| |____(_)____(_)___/ ting enabled.
                                      tm) Processor 2210 stepping 03
(XEN) Xen version 3.3.0 (root@talentrun.de) (gcc version 4.2.3 (Ubuntu
4.2.3-2ubuntu7)) Tue Oct  7 09:04:36 CEST 2008
(XEN) Latest ChangeSet: unavailableng Node #0
(XEN) Command line: noreboot dom0_mem=2097152 console=com2 com2=115200,8n1
(XEN) Video information:ne check reporting enabled.
(XEN)  VGA is text mode 80x25, font 8x16) Processor 2210 stepping 03
(XEN)  VBE/DDC methods: none; EDID transfer time: 1 seconds
(XEN)  EDID info not retrieved because no DDC retrieval method detected
(XEN) Disc information: method
(XEN)  Found 1 MBR signaturesation across 2 CPUs: passed.
(XEN)  Found 1 EDD information structuresTimer
(XEN) Xen-e820 RAM map:
(XEN)  0000000000000000 - 000000000009fc00 (usable)
(XEN)  000000000009fc00 - 00000000000a0000 (reserved)
(XEN)  00000000000e4000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 00000000dfff0000 (usable)0x86a810
(XEN)  00000000dfff0000 - 00000000dfffe000 (ACPI data)
(XEN)  00000000dfffe000 - 00000000e0000000 (ACPI NVS)
(XEN)  00000000e0000000 - 00000000f0000000 (reserved)
(XEN)  00000000fec00000 - 00000000fec01000 (reserved)
(XEN)  00000000fee00000 - 00000000fef00000 (reserved)
(XEN)  00000000ff780000 - 0000000100000000 (reserved)
(XEN)  0000000100000000 - 0000000120000000 (usable)
(XEN) System RAM: 4095MB (4193852kB)
(XEN) ACPI: RSDP 000FAE30, 0024 (r2 ACPIAM)
(XEN) ACPI: XSDT DFFF0100, 004C (r1 A M I  OEMXSDT  12000613 MSFT       97)
(XEN) ACPI: FACP DFFF0290, 00F4 (r3 A M I  OEMFACP  12000613 MSFT       97)
(XEN) ACPI: DSDT DFFF04A0, 5EB0 (r1  S39_3 S39_3B13      B13 INTL 20051117)
(XEN) ACPI: FACS DFFFE000, 0040
(XEN) ACPI: APIC DFFF0390, 0076 (r1 A M I  OEMAPIC  12000613 MSFT       97)
(XEN) ACPI: SPCR DFFF0410, 0050 (r1 A M I  OEMSPCR  12000613 MSFT       97)
(XEN) ACPI: OEMB DFFFE040, 0060 (r1 A M I  AMI_OEM  12000613 MSFT       97)
(XEN) ACPI: SRAT DFFF6350, 00C8 (r1 AMD    HAMMER          1 AMD         1)
(XEN) Xen heap: 14MB (14636kB)
(XEN) Domain heap initialised
(XEN) Processor #0 15:1 APIC version 16
(XEN) Processor #1 15:1 APIC version 16
(XEN) IOAPIC[0]: apic_id 2, version 17, address 0xfec00000, GSI 0-23
(XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Detected 1809.325 MHz processor.
(XEN) AMD SVM: ASIDs disabled.
(XEN) HVM: SVM enabled
(XEN) CPU0: AMD K8 machine check reporting enabled.
(XEN) CPU0: AMD Dual-Core AMD Opteron(tm) Processor 2210 stepping 03
(XEN) Booting processor 1/1 eip 8c000
(XEN) AMD: Disabling C1 Clock Ramping Node #0
(XEN) AMD SVM: ASIDs disabled.
(XEN) CPU1: AMD K8 machine check reporting enabled.
(XEN) CPU1: AMD Dual-Core AMD Opteron(tm) Processor 2210 stepping 03
(XEN) Total of 2 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method
(XEN) checking TSC synchronization across 2 CPUs: passed.
(XEN) Platform timer is 3.579MHz ACPI PM Timer
(XEN) Brought up 2 CPUs
(XEN) I/O virtualisation disabled
(XEN) *** LOADING DOMAIN 0 ***
(XEN)  Xen  kernel: 64-bit, lsb, compat32
(XEN)  Dom0 kernel: 64-bit, lsb, paddr 0x200000 -> 0x86a810
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) Not enough RAM for domain 0 allocation.
(XEN) ****************************************
(XEN)
(XEN) Manual reset required ('noreboot' specified)

After some researching, I've found this
thread(http://lists.xensource.com/archives/html/xen-devel/2008-08/msg00518.html),
but the solution doesn't work for me.

Thanks in advance

greetings
Torben Viets