[Xen-devel] Xen cannot boot with pvops dom0

["Han, Weidong" <weidong.han@xxxxxxxxx>]

I tried with latest Xen unstable (c/s 19833) with latest pvops dom0 (commit 
384a55c0). Booting will hang, following is the serial console output: 

(XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch input to Xen
)
(XEN) Freed 128kB init memory.
mapping kernel into physical memory
Xen: setup ISA identity maps
about to get started...
(XEN) ioapic_guest_write: apic=0, pin=2, old_irq=0, new_irq=-1
(XEN) ioapic_guest_write: old_entry=000009f0, new_entry=00010900
(XEN) ioapic_guest_write: Attempt to remove IO-APIC pin of in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=4, old_irq=4, new_irq=-1
(XEN) ioapic_guest_write: old_entry=000009f1, new_entry=00010900
(XEN) ioapic_guest_write: Attempt to remove IO-APIC pin of in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=0, old_irq=-1, new_irq=0
(XEN) ioapic_guest_write: old_entry=00010900, new_entry=000009f0
(XEN) ioapic_guest_write: Attempt to add IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=19, old_irq=19, new_irq=19
(XEN) ioapic_guest_write: old_entry=0000a9c0, new_entry=0001a9c0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=19, old_irq=19, new_irq=19
(XEN) ioapic_guest_write: old_entry=0000a9c0, new_entry=0001a9c0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=23, old_irq=23, new_irq=23
(XEN) ioapic_guest_write: old_entry=0000a9d0, new_entry=0001a9d0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=19, old_irq=19, new_irq=19
(XEN) ioapic_guest_write: old_entry=0000a9c0, new_entry=0001a9c0
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=16, old_irq=16, new_irq=16
(XEN) ioapic_guest_write: old_entry=0000a9b8, new_entry=0001a9b8
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!
(XEN) ioapic_guest_write: apic=0, pin=18, old_irq=18, new_irq=18
(XEN) ioapic_guest_write: old_entry=0000a921, new_entry=0001a921
(XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use IRQ!


Did anyone meet this issue? Is there any difference on build and installation 
between pvops dom0 and 2.6.18 dom0? Following is my instructions, pls correct 
me if something is wrong. Appreciate in advance.
 
My build and installation instructions:
        - cd xen-unstable.hg
        - make world (linux-2.6-pvops.git will be cloned)
        - make install

My grub entry:
        title Xen - pvops
                root (hd0,2)
                kernel /boot/xen.gz dom0_mem=512m
                module /boot/vmlinuz-2.6-30.rc3-tip ro root=/dev/sda3 
console=tty0 console=ttyS0

I also tried build pvops dom0 manually as follows, but it doesn't help.
        - cd linux-2.6-pvops.git
        - make
        - make modules_install
        - make install


Regards,
Weidong
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