[Xen-devel] Problem Booting up a Xen kernel

["Shlomi Fish" <shlomif@xxxxxxxxx>]

Hi all!

I've experienced some problems. I replaced a function in the Xen
version of Linux with its modified version to patch something. Then I
built the kernel at

/local-home/shlomif/Download/Arcs/Xen/Xen-Enterprise/from-sources/xs-xen/xs-xen-4991b3f7314e/linux-2.6.16.29-xen

I scp'ed the vmlinuz and the /lib/modules/linux-2.6.16.29-xen directory to the
Xen directory, built an initrd and configured the following entry
in /boot/grub/menu.lst:

<<<<<<<<<<<
title XenTehuti (Serieal)
  root (hd0,0)
  kernel /boot/xen-3.0.3.0.gz com1=115200,8n1 console=com1,tty
dom0_mem=524288
lowmem_emergency_pool=16M
  module /boot/vmlinuz-tehuti1 root=LABEL=/-main ro console=tty0
console=ttyS0,
115200n8
  module /boot/initrd-tehuti1
> > > > > > > > > > >
However, when booting it I'm getting a long dump on the serial console:

<<<<<<<<<<<<<<<
(XEN) Domain 0 shutdown: rebooting machine.
__  __            _____  ___   _____  ___
\ \/ /___ _ __   |___ / / _ \ |___ / / _ \
 \  // _ \ '_ \    |_ \| | | |  |_ \| | | |
 /  \  __/ | | |  ___) | |_| | ___) | |_| |
/_/\_\___|_| |_| |____(_)___(_)____(_)___/

http://www.cl.cam.ac.uk/netos/xen
University of Cambridge Computer Laboratory

Xen version 3.0.3.0 (root@xxxxxxxxxxxxxxxxxxxx) (gcc version 3.4.5 20051201
(R6 Latest ChangeSet: 4991b3f7314e.21428d22757d (3.1.0.289.2650)

(XEN) Command line: /boot/xen-3.0.3.0.gz com1=115200,8n1 console=com1,tty
dom0_M(XEN) Physical RAM map:
(XEN)  0000000000000000 - 00000000000a0000 (usable)
(XEN)  0000000000100000 - 000000003ffc0000 (usable)
(XEN)  000000003ffc0000 - 000000003ffcfc00 (ACPI data)
(XEN)  000000003ffcfc00 - 000000003ffff000 (reserved)
(XEN)  00000000e0000000 - 00000000fec90000 (reserved)
(XEN)  00000000fed00000 - 00000000fed00400 (reserved)
(XEN)  00000000fee00000 - 00000000fee10000 (reserved)
(XEN)  00000000ffb00000 - 0000000100000000 (reserved)
(XEN) System RAM: 1023MB (1047936kB)
(XEN) Xen heap: 10MB (10380kB)
(XEN) PAE enabled, limit: 16 GB
(XEN) found SMP MP-table at 000fe710
(XEN) DMI 2.3 present.
(XEN) Using APIC driver default
(XEN) ACPI: RSDP (v000 DELL                                  ) @ 0x000fd650
(XEN) ACPI: RSDT (v001 DELL   PE1800   0x00000001 MSFT 0x0100000a) @
0x000fd664
(XEN) ACPI: FADT (v001 DELL   PE1800   0x00000001 MSFT 0x0100000a) @
0x000fd6b0
(XEN) ACPI: MADT (v001 DELL   PE1800   0x00000001 MSFT 0x0100000a) @
0x000fd724
(XEN) ACPI: SPCR (v001 DELL   PE1800   0x00000001 MSFT 0x0100000a) @
0x000fd7c0
(XEN) ACPI: HPET (v001 DELL   PE1800   0x00000001 MSFT 0x0100000a) @
0x000fd810
(XEN) ACPI: MCFG (v001 DELL   PE1800   0x00000001 MSFT 0x0100000a) @
0x000fd848
(XEN) ACPI: DSDT (v001 DELL   PE1800   0x00000001 MSFT 0x0100000e) @
0x00000000
(XEN) ACPI: Local APIC address 0xfee00000
(XEN) ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
(XEN) Processor #0 15:4 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
(XEN) Processor #1 15:4 APIC version 20
(XEN) ACPI: LAPIC (acpi_id[0x03] lapic_id[0x06] disabled)
(XEN) ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
(XEN) ACPI: LAPIC_NMI (acpi_id[0x01] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x02] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x03] high edge lint[0x1])
(XEN) ACPI: LAPIC_NMI (acpi_id[0x04] high edge lint[0x1])
(XEN) ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
(XEN) IOAPIC[0]: apic_id 2, version 32, address 0xfec00000, GSI 0-23
(XEN) ACPI: IOAPIC (id[0x03] address[0xfec80000] gsi_base[32])
(XEN) IOAPIC[1]: apic_id 3, version 32, address 0xfec80000, GSI 32-55
(XEN) ACPI: IOAPIC (id[0x04] address[0xfec80800] gsi_base[64])
(XEN) IOAPIC[2]: apic_id 4, version 32, address 0xfec80800, GSI 64-87
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
(XEN) ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
(XEN) ACPI: IRQ0 used by override.
(XEN) ACPI: IRQ2 used by override.
(XEN) ACPI: IRQ9 used by override.
(XEN) Enabling APIC mode:  Flat.  Using 3 I/O APICs
(XEN) ACPI: HPET id: 0xffffffff base: 0xfed00000
(XEN) Using ACPI (MADT) for SMP configuration information
(XEN) Using scheduler: SMP Credit Scheduler (credit)
(XEN) Initializing CPU#0
(XEN) Detected 2992.605 MHz processor.
(XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K
(XEN) CPU: L2 cache: 2048K
(XEN) CPU: Physical Processor ID: 0
(XEN) Intel machine check architecture supported.
(XEN) Intel machine check reporting enabled on CPU#0.
(XEN) CPU0: Intel P4/Xeon Extended MCE MSRs (24) available
(XEN) CPU0: Thermal monitoring enabled
(XEN) CPU0: Intel(R) Xeon(TM) CPU 3.00GHz stepping 03
(XEN) Booting processor 1/1 eip 90000
(XEN) Initializing CPU#1
(XEN) CPU: Trace cache: 12K uops, L1 D cache: 16K
(XEN) CPU: L2 cache: 2048K
(XEN) CPU: Physical Processor ID: 0
(XEN) Intel machine check architecture supported.
(XEN) Intel machine check reporting enabled on CPU#1.
(XEN) CPU1: Intel P4/Xeon Extended MCE MSRs (24) available
(XEN) CPU1: Thermal monitoring enabled
(XEN) CPU1: Intel(R) Xeon(TM) CPU 3.00GHz stepping 03
(XEN) Total of 2 processors activated.
(XEN) ENABLING IO-APIC IRQs
(XEN)  -> Using new ACK method
(XEN) ..TIMER: vector=0xF0 apic1=0 pin1=2 apic2=-1 pin2=-1
(XEN) checking TSC synchronization across 2 CPUs: passed.
(XEN) Platform timer is 14.318MHz HPET
(XEN) Brought up 2 CPUs
(XEN) Machine check exception polling timer started.
(XEN) *** LOADING DOMAIN 0 ***
(XEN) PAE mode mismatch between Xen and DOM0 (xen=yes, dom0=no)
(XEN)
(XEN) ****************************************
(XEN) Panic on CPU 0:
(XEN) Could not set up DOM0 guest OS
(XEN) ****************************************
(XEN)
(XEN) Reboot in five seconds...
> > > > > > > > > > > > > > >
Is there anything I'm doing wrong? What can I do to resolve the problem?

Regards,

       Shlomi Fish

------------------------------------------
Shlomi Fish http://www.shlomifish.org/

If his programming is anything like his philosophising, he
would find 10 imaginary bugs in the "Hello World" program.

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