Re: [Xen-devel] XEN 4.0.1: BUG: IO-APIC + timer doesn't work!

["Jan Beulich" <JBeulich@xxxxxxxxxx>]

>>> On 07.09.10 at 22:17, Markus Schuster <ml@xxxxxxxxxxxxxxxxxxxx> wrote:
> Hi list, 
> 
> I tried to setup XEN 4.0.1 (Debian unstable packages compiled for lenny) on 
> my workstation, but run into trouble. XEN 3.4.3 works flawlessly on the same 
> 
> hardware. Booting with the noapic parameter solves the problem. 
> Feel free to ask for additional information as needed. 

You will want to boot 3.4.3 and 4.0.1 with "loglvl=all" and compare

> (XEN) Xen version 4.0.1 (Debian 4.0.1-1) (waldi@xxxxxxxxxx) (gcc version 
> 4.3.2 (Debian 4.3.2-1.1) ) Mon Sep  6 23:42:50 UTC 2010
> (XEN) Bootloader: GNU GRUB 0.97
> (XEN) Command line: apic=debug console=com1 com1=115200,8n1
> (XEN) Video information:
> (XEN)  VGA is text mode 80x25, font 8x16
> (XEN)  VBE/DDC methods: none; EDID transfer time: 0 seconds
> (XEN)  EDID info not retrieved because no DDC retrieval method detected
> (XEN) Disc information:
> (XEN)  Found 3 MBR signatures
> (XEN)  Found 3 EDD information structures
> (XEN) Xen-e820 RAM map:
> (XEN)  0000000000000000 - 000000000009f800 (usable)
> (XEN)  000000000009f800 - 00000000000a0000 (reserved)
> (XEN)  00000000000f0000 - 0000000000100000 (reserved)
> (XEN)  0000000000100000 - 000000007fee0000 (usable)
> (XEN)  000000007fee0000 - 000000007fee3000 (ACPI NVS)
> (XEN)  000000007fee3000 - 000000007fef0000 (ACPI data)
> (XEN)  000000007fef0000 - 000000007ff00000 (reserved)
> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
> (XEN)  00000000fec00000 - 0000000100000000 (reserved)
> (XEN) System RAM: 2046MB (2095612kB)
> (XEN) ACPI: RSDP 000F7810, 0014 (r0 Nvidia)
> (XEN) ACPI: RSDT 7FEE3040, 0034 (r1 Nvidia AWRDACPI 42302E31 AWRD        0)
> (XEN) ACPI: FACP 7FEE30C0, 0074 (r1 Nvidia AWRDACPI 42302E31 AWRD        0)
> (XEN) ACPI: DSDT 7FEE3180, 6786 (r1 NVIDIA AWRDACPI     1000 MSFT  100000E)
> (XEN) ACPI: FACS 7FEE0000, 0040
> (XEN) ACPI: SSDT 7FEE9A40, 00F7 (r1 PTLTD  POWERNOW        1  LTP        1)
> (XEN) ACPI: MCFG 7FEE9B80, 003C (r1 Nvidia AWRDACPI 42302E31 AWRD        0)
> (XEN) ACPI: APIC 7FEE9980, 007C (r1 Nvidia AWRDACPI 42302E31 AWRD        0)
> (XEN) Domain heap initialised
> (XEN) Processor #0 15:15 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 2210.229 MHz processor.
> (XEN) Initing memory sharing.
> (XEN) AMD-Vi: IOMMU not found!
> (XEN) I/O virtualisation disabled
> (XEN) Total of 1 processors activated.
> (XEN) ENABLING IO-APIC IRQs
> (XEN)  -> Using new ACK method

... additional output around here.

> (XEN) ..MP-BIOS bug: 8254 timer not connected to IO-APIC
> (XEN)
> (XEN) ****************************************
> (XEN) Panic on CPU 0:
> (XEN) IO-APIC + timer doesn't work!  Boot with apic=debug and send a report.  

And you clearly didn't follow the first part of the request made here
(admittedly the text isn't fully correct, as it would need to be
"apic_verbosity=debug".

Additionally, if you boot native Linux on this box, does it report that
it's ignoring a timer override (in which case you would also want to
try booting Xen with "acpi_skip_timer_override")?

Jan


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