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[Xen-users] Re: FC4 boot hangs up when enabling eth0

Hi folks

Never mind. This post has been on my Draft folder for some time, and I sent it today by mistake. I already has it fixed.

Danilo Gimenez

Em Seg, 2005-08-08 às 11:20 -0300, Danilo Gimenez escreveu:
Hi folks.

I use Fedora Core 4, and I am new to Xen. I have installed Xen packages from FC4 yum repository, and it is not working. I believe I'm missing some very basic configuration detail. These are my packages:


The only configuration I've made was to modify grub.conf, adding a "dom0_mem" tag, and replacing "rhgb quiet" by "3" (in order to boot on runlevel 3). My grub.conf now seems like this:

title Fedora Core (2.6.12-1.1398_FC4xen0)
        root (hd0,0)
        kernel /xen.gz dom0_mem=262144
        module /vmlinuz-2.6.12-1.1398_FC4xen0 ro root=LABEL=/ 3
        module /initrd-2.6.12-1.1398_FC4xen0.img
title Fedora Core (2.6.12-1.1398_FC4)
        root (hd0,0)
        kernel /vmlinuz-2.6.12-1.1398_FC4 ro root=LABEL=/ rhgb quiet
        initrd /initrd-2.6.12-1.1398_FC4.img

My problem is, when I'm booting up with Xen dom0 kernel, my system simply hangs up when enabling eth0. IF I try to boot step-by-step, and choose NOT to enable eth0, all works fine. Even lo0 is up! Then I'm able to run "service xend start", and even to create a domain. If I try to run "ifup eth0" on Dom0, my system hangs up again...

In other words, I just do not have any eth0 on Dom0... What am I missing?

This is a "xm info" output:

system                 : Linux
host                   : myhost33.mydomain.com.br
release                : 2.6.12-1.1398_FC4xen0
version                : #1 SMP Fri Jul 15 01:53:34 EDT 2005
machine                : i686
cores                  : 1
hyperthreads_per_core  : 1
cpu_mhz                : 801
memory                 : 767
free_memory            : 496

And this is a "xm dmesg" result:

ERROR: cannot use unconfigured serial port COM1
__  __            _____  ___         _                _
\ \/ /___ _ __   |___ / / _ \     __| | _____   _____| |
  \  // _ \ '_ \    |_ \| | | |__ / _` |/ _ \ \ / / _ \ |
  /  \  __/ | | |  ___) | |_| |__| (_| |  __/\ V /  __/ |
/_/\_\___|_| |_| |____(_)___/    \__,_|\___| \_/ \___|_|

University of Cambridge Computer Laboratory

Xen version 3.0-devel (bhcompile@xxxxxxxxxxxxxxxx) (gcc version 4.0.0 20050519 (Red Hat 4.0.0-8)) Mon May 23 07:47:32 EDT 2005
Latest ChangeSet: information unavailable

(XEN) Physical RAM map:
(XEN)  0000000000000000 - 000000000009fc00 (usable)
(XEN)  000000000009fc00 - 00000000000a0000 (reserved)
(XEN)  00000000000f0000 - 0000000000100000 (reserved)
(XEN)  0000000000100000 - 000000002ffec000 (usable)
(XEN)  000000002ffec000 - 000000002ffef000 (ACPI data)
(XEN)  000000002ffef000 - 000000002ffff000 (reserved)
(XEN)  000000002ffff000 - 0000000030000000 (ACPI NVS)
(XEN)  00000000ffff0000 - 0000000100000000 (reserved)
(XEN) System RAM: 767MB (785964kB)
(XEN) Xen heap: 10MB (10760kB)
(XEN) CPU0: Before vendor init, caps: 0383f9ff 00000000 00000000, vendor = 0
(XEN) CPU caps: 0383f9ff 00000000 00000000 00000000
(XEN) ACPI: RSDP (v000 ASUS                                      ) @ 0x000f6920
(XEN) ACPI: RSDT (v001 ASUS   CUV4X    0x30303031 MSFT 0x31313031) @ 0x2ffec000
(XEN) ACPI: FADT (v001 ASUS   CUV4X    0x30303031 MSFT 0x31313031) @ 0x2ffec080
(XEN) ACPI: BOOT (v001 ASUS   CUV4X    0x30303031 MSFT 0x31313031) @ 0x2ffec040
(XEN) ACPI: DSDT (v001   ASUS CUV4X    0x00001000 MSFT 0x0100000b) @ 0x00000000
(XEN) Local APIC disabled by BIOS -- reenabling.
(XEN) Found and enabled local APIC!
(XEN) Using scheduler: Borrowed Virtual Time (bvt)
(XEN) Initializing CPU#0
(XEN) Detected 801.827 MHz processor.
(XEN) CPU0 booted
(XEN) SMP motherboard not detected.
(XEN) enabled ExtINT on CPU#0
(XEN) Using local APIC timer interrupts.
(XEN) Calibrating APIC timer for CPU0...
(XEN) ..... CPU clock speed is 801.8309 MHz.
(XEN) ..... host bus clock speed is 100.2287 MHz.
(XEN) ..... bus_scale = 0x000066A2
(XEN) Time init:
(XEN) .... System Time: 10544007ns
(XEN) .... cpu_freq:    00000000:2FCAEA70
(XEN) .... scale:       00000001:3F454BEF
(XEN) .... Wall Clock:  1123510226s 20000us
(XEN) PCI: PCI BIOS revision 2.10 entry at 0xf0cc0, 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 VIA [1106/0686] at 00:04.0
(XEN) PCI: Disabling Via external APIC routing
(XEN) mtrr: v2.0 (20020519)
(XEN) Xen-ELF header found: 'GUEST_OS=linux,GUEST_VER=2.6,XEN_VER=3.0,VIRT_BASE=0xC0000000,LOADER=generic'
(XEN)  Dom0 alloc.:   10000000->20000000
(XEN)  Loaded kernel: c0100000->c0471658
(XEN)  Init. ramdisk: c0472000->c06ad400
(XEN)  Phys-Mach map: c06ae000->c06ee000
(XEN)  Page tables:   c06ee000->c06f1000
(XEN)  Start info:    c06f1000->c06f2000
(XEN)  Boot stack:    c06f2000->c06f3000
(XEN)  TOTAL:         c0000000->c0800000
(XEN)  ENTRY ADDRESS: c0100000
(XEN) Initrd len 0x23b400, start at 0xc0472000
(XEN) Scrubbing Free RAM: ........done.
(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen).
(XEN) PCI: Found IRQ 9 for device 00:10.0
(XEN) PCI: Found IRQ 10 for device 00:04.5
(XEN) PCI: Found IRQ 9 for device 00:04.2
(XEN) PCI: Sharing IRQ 9 with 00:04.3
(XEN) PCI: Found IRQ 9 for device 00:04.3
(XEN) PCI: Sharing IRQ 9 with 00:04.2

Thanks in advance,
Danilo Gimenez
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