Re: [Xen-devel] Re: "ACPI: Unable to start the ACPI Interpreter"

[Liwei <xieliwei@xxxxxxxxx>]

On 27 June 2011 21:39, Konrad Rzeszutek Wilk <konrad.wilk@xxxxxxxxxx> wrote:
On Sat, Jun 25, 2011 at 08:33:04PM +0800, Liwei wrote:
>> Just a follow up. I found out that the boot failure's due to a
>> unsupported (faulty?) PATA controller. Removed it and the system
>> actually boots. The SCI allocation failure still occurs though.
>
> That in general causes the ACPI interpreter to stop working
> completly.

Does failure of the interpreter cause anything bad to happen? Common
sense tells me that things should be going very wrong, but the system
does come up. I can ssh in, run hvm domains, etc. The only problem I
see though is that interrupt mapping for certain PCI passthrough
devices (particularly one of the two Intel EHCI USB controllers and a
firewire controller) fails. VGA passthrough with or without
gfx_passthru = 1 still works fine though:

#xl dmesg
(XEN) physdev.c:164: dom2: 10:-1 already mapped to 16
(XEN) irq.c:1297:d0 Cannot bind IRQ 16 to guest. Others do not share.
(XEN) domctl.c:914:d0 pt_irq_create_bind failed!
(XEN) irq.c:1297:d0 Cannot bind IRQ 20 to guest. Others do not share.
(XEN) domctl.c:914:d0 pt_irq_create_bind failed!

#cat qemu-dm-vm.log
IRQ type = MSI-INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 00:1a.0 ...
pt_iomul_init: Error: pt_iomul_init can't open file
/dev/xen/pci_iomul: No such file or directory: 0x0:0x1a.0x0
pt_register_regions: IO region registered (size=0x00001000 base_addr=0xa0004000)
pci_intx: intx=1
register_real_device: Error: Binding of interrupt failed! rc=-1
register_real_device: Real physical device 00:1a.0 registered successfuly!
IRQ type = INTx
dm-command: hot insert pass-through pci dev
register_real_device: Assigning real physical device 0f:03.0 ...
pt_iomul_init: Error: pt_iomul_init can't open file
/dev/xen/pci_iomul: No such file or directory: 0xf:0x3.0x0
pt_register_regions: IO region registered (size=0x00001000 base_addr=0xfbe04000)
pt_register_regions: IO region registered (size=0x00004000 base_addr=0xfbe00000)
pci_intx: intx=1
register_real_device: Error: Binding of interrupt failed! rc=-1
register_real_device: Real physical device 0f:03.0 registered successfuly!

#lspci -v
00:1a.0 USB Controller: Intel Corporation 5 Series/3400 Series Chipset
USB2 Enhanced Host Controller (rev 05) (prog-if 20 [EHCI])
        Subsystem: eVga.com. Corp. Device 1014
        Flags: bus master, medium devsel, latency 0, IRQ 10
        Memory at a0004000 (32-bit, non-prefetchable) [size=4K]
        Capabilities: [50] Power Management version 2
        Capabilities: [58] Debug port: BAR=1 offset=00a0
        Capabilities: [98] PCI Advanced Features
        Kernel driver in use: xen-pciback
0f:03.0 FireWire (IEEE 1394): Texas Instruments TSB43AB22/A
IEEE-1394a-2000 Controller (PHY/Link) (prog-if 10 [OHCI])
        Subsystem: nVidia Corporation Device cb84
        Flags: bus master, medium devsel, latency 64, IRQ 11
        Memory at fbe04000 (32-bit, non-prefetchable) [size=4K]
        Memory at fbe00000 (32-bit, non-prefetchable) [size=16K]
        Capabilities: [44] Power Management version 2
        Kernel driver in use: xen-pciback

(Only IRQs 1, 3, 5, 8, 10, 11, 12, 200++ appear in /proc/interrupts)

>
> If you look at the full serial log do you see INT_SRC_OVR for IRQ 9?
> You should see something akin to this:
>
----snip----

Yes I do:

[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
[    0.000000] ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 20 low level)
[    0.000000] ACPI: IRQ0 used by override.
[    0.000000] ACPI: IRQ2 used by override.
[    0.000000] ACPI: IRQ9 used by override.
[    0.000000] Using ACPI (MADT) for SMP configuration information
----snip----
[    3.405497] Memory: 776452k/13631488k available (3239k kernel code,
3146184k absent, 9708852k reserved, 3423k data, 532k init)
[    3.405579] SLUB: Genslabs=15, HWalign=64, Order=0-3, MinObjects=0,
CPUs=8, Nodes=1
[    3.405616] Preemptible hierarchical RCU implementation.
[    3.405630] NR_IRQS:33024 nr_irqs:2048 16
[    3.405705] xen: sci override: global_irq=20 trigger=0 polarity=1
[    3.405708] xen: registering gsi 20 triggering 0 polarity 1
[    3.405721] xen: --> pirq=20 -> irq=20
[    3.405728] xen: acpi sci 20
[    3.405732] xen: --> pirq=1 -> irq=1
[    3.405736] xen: --> pirq=2 -> irq=2
[    3.405739] xen: --> pirq=3 -> irq=3
[    3.405743] xen: --> pirq=4 -> irq=4
[    3.405746] xen: --> pirq=5 -> irq=5
[    3.405750] xen: --> pirq=6 -> irq=6
[    3.405753] xen: --> pirq=7 -> irq=7
[    3.405757] xen: --> pirq=8 -> irq=8
[    3.405760] xen: --> pirq=10 -> irq=10
[    3.405763] xen: --> pirq=11 -> irq=11
[    3.405767] xen: --> pirq=12 -> irq=12
[    3.405770] xen: --> pirq=13 -> irq=13
[    3.405774] xen: --> pirq=14 -> irq=14
[    3.405777] xen: --> pirq=15 -> irq=15

Also, it seems that the same SCI allocation failure and the problems
described above is also present in the 2.6.39 branch as well. The only
version which I can get to work reliably with is 2.6.32.xx.

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