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RE: [Xen-devel] Re: pv_ops dom0 USB fixed

To: "Andrew Lyon" <andrew.lyon@xxxxxxxxx>, "Jeremy Fitzhardinge" <jeremy@xxxxxxxx>
Subject: RE: [Xen-devel] Re: pv_ops dom0 USB fixed
From: "Aviv Grafi" <aviv@xxxxxxxxxxxx>
Date: Fri, 12 Dec 2008 14:15:20 -0500
Cc: Xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>
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Thread-topic: [Xen-devel] Re: pv_ops dom0 USB fixed
You can use the Xen console (serial) to reboot the machine. Just press
'r' (or 'h' to see other commands).
I'm had the same ata problem two weeks ago. I found strange irq behavior
then. Anyway, I will try the updated tree on Sunday.


-----Original Message-----
From: Andrew Lyon [mailto:andrew.lyon@xxxxxxxxx] 
Sent: Friday, December 12, 2008 9:09 PM
To: Jeremy Fitzhardinge
Cc: Xen-devel; Aviv Grafi; Ian Campbell
Subject: Re: [Xen-devel] Re: pv_ops dom0 USB fixed

On Fri, Dec 12, 2008 at 5:20 PM, Jeremy Fitzhardinge <jeremy@xxxxxxxx>
wrote:
> Andrew Lyon wrote:
>>
>> On Fri, Dec 12, 2008 at 4:43 PM, Jeremy Fitzhardinge
<jeremy@xxxxxxxx>
>> wrote:
>>
>>>
>>> Andrew Lyon wrote:
>>>
>>>>
>>>> I tried with the patch anyway, it didnt seem to make any
difference.
>>>>
>>>> I also booted the kernel on the bare metal and it works perfectly,
the
>>>> sata hd is detected ok.
>>>>
>>>> Anything I can do to help debug this?
>>>>
>>>>
>>>
>>> Can you switch your controller back to legacy mode (in the BIOS) and
see
>>> what happens?  It looks like a problem with the AHCI driver.
>>>
>>>  J
>>>
>>>
>>
>> In legacy mode it fails much quicker, perhaps I need to enable
>> different drivers for legacy mode? but I think ive used 2.6.27 in
>> legacy mode with the same config as I use now, in AHCI mode it takes
a
>> while for the timeouts to happen, here is the dmesg:
>>
>>  __  __            _____  _____  ___
>>  \ \/ /___ _ __   |___ / |___ / / _ \
>>  \  // _ \ '_ \    |_ \   |_ \| | | |
>>  /  \  __/ | | |  ___) | ___) | |_| |
>>  /_/\_\___|_| |_| |____(_)____(_)___/
>>
>> (XEN) Xen version 3.3.0 (root@) (gcc version 4.1.2 (Gentoo 4.1.2
>> p1.0.2)) Thu Dec 11 11:52:12 GMT 2008
>> (XEN) Latest ChangeSet: unavailable
>> (XEN) Command line: iommu=1 com1=115200,8n1 console=com1,vga
>> cpufreq=dom0-kernel dom0_mem=1G
>> (XEN) Video information:
>> (XEN)  VGA is text mode 80x25, font 8x16
>> (XEN)  VBE/DDC methods: V2; EDID transfer time: 1 seconds
>> (XEN) Disc information:
>> (XEN)  Found 1 MBR signatures
>> (XEN)  Found 1 EDD information structures
>> (XEN) Xen-e820 RAM map:
>> (XEN)  0000000000000000 - 000000000009fc00 (usable)
>> (XEN)  00000000000f0000 - 0000000000100000 (reserved)
>> (XEN)  0000000000100000 - 00000000cfdff800 (usable)
>> (XEN)  00000000cfdff800 - 00000000cfe53c00 (ACPI NVS)
>> (XEN)  00000000cfe53c00 - 00000000cfe55c00 (ACPI data)
>> (XEN)  00000000cfe55c00 - 00000000d0000000 (reserved)
>> (XEN)  00000000e0000000 - 00000000f0000000 (reserved)
>> (XEN)  00000000fec00000 - 00000000fed00400 (reserved)
>> (XEN)  00000000fed20000 - 00000000feda0000 (reserved)
>> (XEN)  00000000fee00000 - 00000000fef00000 (reserved)
>> (XEN)  00000000ffb00000 - 0000000100000000 (reserved)
>> (XEN)  0000000100000000 - 0000000128000000 (usable)
>> (XEN) System RAM: 3965MB (4060792kB)
>> (XEN) ACPI: RSDP 000FEC00, 0024 (r2 DELL  )
>> (XEN) ACPI: XSDT 000FC5B3, 008C (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: FACP 000FC6E3, 00F4 (r3 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: DSDT FFF76BF6, 4596 (r1   DELL    dt_ex     1000 INTL
>> 20050624)
>> (XEN) ACPI: FACS CFDFF800, 0040
>> (XEN) ACPI: SSDT FFF7B2AB, 00AA (r1   DELL    st_ex     1000 INTL
>> 20050624)
>> (XEN) ACPI: APIC 000FC7D7, 0092 (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: BOOT 000FC869, 0028 (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: ASF! 000FC891, 0096 (r32 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: MCFG 000FC927, 003E (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: HPET 000FC965, 0038 (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: TCPA 000FCBC1, 0032 (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: DMAR 000FCBF3, 00D0 (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: SLIC 000FC99D, 0176 (r1 DELL    B9K           15 ASL
>>  61)
>> (XEN) ACPI: SSDT CFDFF840, 01F9 (r1 DpgPmm  Cpu0Ist       11 INTL
>> 20050624)
>> (XEN) ACPI: SSDT CFDFFC49, 01F9 (r1 DpgPmm  Cpu1Ist       11 INTL
>> 20050624)
>> (XEN) ACPI: SSDT CFE00052, 0140 (r1 DpgPmm    CpuPm       10 INTL
>> 20050624)
>> (XEN) Xen heap: 14MB (14632kB)
>> (XEN) Domain heap initialised
>> (XEN) Processor #0 6:15 APIC version 20
>> (XEN) Processor #1 6:15 APIC version 20
>> (XEN) IOAPIC[0]: apic_id 8, version 32, address 0xfec00000, GSI 0-23
>> (XEN) Enabling APIC mode:  Flat.  Using 1 I/O APICs
>> (XEN) Intel VT-d has been enabled
>> (XEN) Using scheduler: SMP Credit Scheduler (credit)
>> (XEN) Detected 2394.073 MHz processor.
>> (XEN) HVM: VMX enabled
>> (XEN) CPU0: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz stepping
06
>> (XEN) Booting processor 1/1 eip 8c000
>> (XEN) CPU1: Intel(R) Core(TM)2 CPU          6600  @ 2.40GHz stepping
06
>> (XEN) Total of 2 processors activated.
>> (XEN) ENABLING IO-APIC IRQs
>> (XEN)  -> Using new ACK method
>> (XEN) checking TSC synchronization across 2 CPUs: passed.
>> (XEN) Platform timer is 14.318MHz HPET
>> (XEN) Brought up 2 CPUs
>> (XEN) I/O virtualisation enabled
>> (XEN) I/O virtualisation for PV guests disabled
>> (XEN) *** LOADING DOMAIN 0 ***
>> (XEN)  Xen  kernel: 64-bit, lsb, compat32
>> (XEN)  Dom0 kernel: 64-bit, PAE, lsb, paddr 0x200000 -> 0x87c3d0
>> (XEN) PHYSICAL MEMORY ARRANGEMENT:
>> (XEN)  Dom0 alloc.:   0000000122000000->0000000123000000 (258048
pages
>> to be allocated)
>> (XEN) VIRTUAL MEMORY ARRANGEMENT:
>> (XEN)  Loaded kernel: ffffffff80200000->ffffffff8087c3d0
>> (XEN)  Init. ramdisk: ffffffff8087d000->ffffffff8087d000
>> (XEN)  Phys-Mach map: ffffffff8087d000->ffffffff80a7d000
>> (XEN)  Start info:    ffffffff80a7d000->ffffffff80a7d4a4
>> (XEN)  Page tables:   ffffffff80a7e000->ffffffff80a87000
>> (XEN)  Boot stack:    ffffffff80a87000->ffffffff80a88000
>> (XEN)  TOTAL:         ffffffff80000000->ffffffff80c00000
>> (XEN)  ENTRY ADDRESS: ffffffff80741200
>> (XEN) Dom0 has maximum 2 VCPUs
>> (XEN) Scrubbing Free RAM: ............................done.
>> (XEN) Xen trace buffers: disabled
>> (XEN) Std. Loglevel: Errors and warnings
>> (XEN) Guest Loglevel: Nothing (Rate-limited: Errors and warnings)
>> (XEN) Xen is relinquishing VGA console.
>> (XEN) *** Serial input -> DOM0 (type 'CTRL-a' three times to switch
>> input to Xen)
>> (XEN) Freed 108kB 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!
>> Linux version 2.6.28-rc8-tip (root@localhost) (gcc version 4.1.2
>> (Gentoo 4.1.2 p1.0.2)) #1 SMP Fri Dec 12 08:57:32 GMT 2008
>> Command line: root=/dev/sda2 swiotlb=256 console=hvc0 earlyprink=xen
>> pciback.hide=(03:02.0) pci=nomsi
>> KERNEL supported cpus:
>>  Intel GenuineIntel
>>  AMD AuthenticAMD
>>  Centaur CentaurHauls
>> BIOS-provided physical RAM map:
>>  Xen: 0000000000000000 - 00000000000a0000 (usable)
>>  Xen: 00000000000a0000 - 0000000000100000 (reserved)
>>  Xen: 0000000000100000 - 000000000087d000 (usable)
>>  Xen: 000000000087d000 - 0000000000a7e000 (reserved)
>>  Xen: 0000000000a7e000 - 0000000040000000 (usable)
>> DMI 2.5 present.
>> last_pfn = 0x40000 max_arch_pfn = 0x3ffffffff
>> init_memory_mapping: 0000000000000000-0000000040000000
>> last_map_addr: 40000000 end: 40000000
>> ACPI: RSDP 000FEC00, 0024 (r2 DELL  )
>> ACPI: XSDT 000FC5B3, 008C (r1 DELL    B9K           15 ASL        61)
>> ACPI: FACP 000FC6E3, 00F4 (r3 DELL    B9K           15 ASL        61)
>> ACPI: DSDT FFF76BF6, 4596 (r1   DELL    dt_ex     1000 INTL 20050624)
>> ACPI: FACS CFDFF800, 0040
>> ACPI: SSDT FFF7B2AB, 00AA (r1   DELL    st_ex     1000 INTL 20050624)
>> ACPI: APIC 000FC7D7, 0092 (r1 DELL    B9K           15 ASL        61)
>> ACPI: BOOT 000FC869, 0028 (r1 DELL    B9K           15 ASL        61)
>> ACPI: ASF! 000FC891, 0096 (r32 DELL    B9K           15 ASL
61)
>> ACPI: MCFG 000FC927, 003E (r1 DELL    B9K           15 ASL        61)
>> ACPI: HPET 000FC965, 0038 (r1 DELL    B9K           15 ASL        61)
>> ACPI: TCPA 000FCBC1, 0032 (r1 DELL    B9K           15 ASL        61)
>> ACPI: DMAR 000FCBF3, 00D0 (r1 DELL    B9K           15 ASL        61)
>> ACPI: SLIC 000FC99D, 0176 (r1 DELL    B9K           15 ASL        61)
>> ACPI: SSDT CFDFF840, 01F9 (r1 DpgPmm  Cpu0Ist       11 INTL 20050624)
>> ACPI: SSDT CFDFFC49, 01F9 (r1 DpgPmm  Cpu1Ist       11 INTL 20050624)
>> ACPI: SSDT CFE00052, 0140 (r1 DpgPmm    CpuPm       10 INTL 20050624)
>> (5 early reservations) ==> bootmem [0000000000 - 0040000000]
>>  #0 [0000000000 - 0000001000]   BIOS data page ==> [0000000000 -
>> 0000001000]
>>  #1 [0000a7e000 - 0000a87000]   XEN PAGETABLES ==> [0000a7e000 -
>> 0000a87000]
>>  #2 [0000006000 - 0000008000]       TRAMPOLINE ==> [0000006000 -
>> 0000008000]
>>  #3 [0000200000 - 000087c3d0]    TEXT DATA BSS ==> [0000200000 -
>> 000087c3d0]
>>  #4 [0000a87000 - 0000c7d000]          PGTABLE ==> [0000a87000 -
>> 0000c7d000]
>> found SMP MP-table at [ffff8800000fe710] 000fe710
>> Zone PFN ranges:
>>  DMA      0x00000000 -> 0x00001000
>>  DMA32    0x00001000 -> 0x00100000
>>  Normal   0x00100000 -> 0x00100000
>> Movable zone start PFN for each node
>> early_node_map[3] active PFN ranges
>>    0: 0x00000000 -> 0x000000a0
>>    0: 0x00000100 -> 0x0000087d
>>    0: 0x00000a7e -> 0x00040000
>> ACPI: PM-Timer IO Port: 0x808
>> ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
>> ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
>> ACPI: LAPIC (acpi_id[0x03] lapic_id[0x05] disabled)
>> ACPI: LAPIC (acpi_id[0x04] lapic_id[0x07] disabled)
>> ACPI: LAPIC (acpi_id[0x05] lapic_id[0x00] disabled)
>> ACPI: LAPIC (acpi_id[0x06] lapic_id[0x01] disabled)
>> ACPI: LAPIC (acpi_id[0x07] lapic_id[0x02] disabled)
>> ACPI: LAPIC (acpi_id[0x08] lapic_id[0x03] disabled)
>> ACPI: LAPIC_NMI (acpi_id[0xff] high level lint[0x1])
>> ACPI: IOAPIC (id[0x08] address[0xfec00000] gsi_base[0])
>> IOAPIC[0]: apic_id 8, version 0, address 0xfec00000, GSI 0-23
>> ACPI: INT_SRC_OVR (bus 0 bus_irq 0 global_irq 2 dfl dfl)
>> ACPI: INT_SRC_OVR (bus 0 bus_irq 9 global_irq 9 high level)
>> Using ACPI (MADT) for SMP configuration information
>> ACPI: HPET id: 0x8086a301 base: 0xfed00000
>> SMP: Allowing 2 CPUs, 0 hotplug CPUs
>> Allocating PCI resources starting at 50000000 (gap:
40000000:c0000000)
>> PERCPU: Allocating 57344 bytes of per cpu data
>> Built 1 zonelists in Zone order, mobility grouping on.  Total pages:
>> 255775
>> Kernel command line: root=/dev/sda2 swiotlb=256 console=hvc0
>> earlyprink=xen pciback.hide=(03:02.0) pci=nomsi
>> Unknown boot option `pciback.hide=(03:02.0)': ignoring
>> Initializing CPU#0
>> xen: allocated irq 9 for acpi 9
>> PID hash table entries: 4096 (order: 12, 32768 bytes)
>> Detected 2394.004 MHz processor.
>> Console: colour dummy device 80x25
>> console [hvc0] enabled
>> Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
>> Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
>> Checking aperture...
>> No AGP bridge found
>> PCI-DMA: Using software bounce buffering for IO (SWIOTLB)
>> Placing 0MB software IO TLB between ffff88000208b000 -
ffff88000210afff
>> software IO TLB at phys 0x208b000 - 0x210afff bus 0x1c0000 - 0x1bffff
>> Memory: 1020272k/1048576k available (3275k kernel code, 2436k absent,
>> 25380k reserved, 1863k data, 452k init)
>> SLUB: Genslabs=12, HWalign=64, Order=0-3, MinObjects=0, CPUs=2,
Nodes=1
>> installing Xen timer for CPU 0
>> Calibrating delay loop (skipped), value calculated using timer
>> frequency.. 4788.00 BogoMIPS (lpj=2394004)
>> Mount-cache hash table entries: 256
>> CPU: L1 I cache: 32K, L1 D cache: 32K
>> CPU: L2 cache: 4096K
>> CPU: Physical Processor ID: 0
>> CPU: Processor Core ID: 0
>> SMP alternatives: switching to UP code
>> ACPI: Core revision 20080926
>> cpu 0 spinlock event irq 17
>> installing Xen timer for CPU 1
>> cpu 1 spinlock event irq 23
>> SMP alternatives: switching to SMP code
>> Initializing CPU#1
>> CPU: L1 I cache: 32K, L1 D cache: 32K
>> CPU: L2 cache: 4096K
>> CPU: Physical Processor ID: 0
>> CPU: Processor Core ID: 0
>> Brought up 2 CPUs
>> khelper used greatest stack depth: 6800 bytes left
>> net_namespace: 592 bytes
>> Booting paravirtualized kernel on Xen
>> Xen version: 3.3.0 (preserve-AD) (dom0)
>> Grant table initialized
>> Time: 17:09:45  Date: 12/12/08
>> NET: Registered protocol family 16
>> xenbus_probe_init ok
>> ACPI FADT declares the system doesn't support PCIe ASPM, so disable
it
>> ACPI: bus type pci registered
>> PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 255
>> PCI: Not using MMCONFIG.
>> PCI: Using configuration type 1 for base access
>> khelper used greatest stack depth: 6448 bytes left
>> khelper used greatest stack depth: 6232 bytes left
>> ACPI: Interpreter enabled
>> ACPI: (supports S0 S1 S3 S5)
>> ACPI: Using IOAPIC for interrupt routing
>> PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 255
>> PCI: BIOS Bug: MCFG area at e0000000 is not reserved in ACPI
>> motherboard resources
>> PCI: Not using MMCONFIG.
>> ACPI: ACPI Dock Station Driver: 1 docks/bays found
>> ACPI: PCI Root Bridge [PCI0] (0000:00)
>> pci 0000:00:01.0: PME# supported from D0 D3hot D3cold
>> pci 0000:00:01.0: PME# disabled
>> pci 0000:00:03.0: PME# supported from D0 D3hot D3cold
>> pci 0000:00:03.0: PME# disabled
>> pci 0000:00:19.0: PME# supported from D0 D3hot D3cold
>> pci 0000:00:19.0: PME# disabled
>> pci 0000:00:1a.7: PME# supported from D0 D3hot D3cold
>> pci 0000:00:1a.7: PME# disabled
>> pci 0000:00:1b.0: PME# supported from D0 D3hot D3cold
>> pci 0000:00:1b.0: PME# disabled
>> pci 0000:00:1c.0: PME# supported from D0 D3hot D3cold
>> pci 0000:00:1c.0: PME# disabled
>> pci 0000:00:1d.7: PME# supported from D0 D3hot D3cold
>> pci 0000:00:1d.7: PME# disabled
>> pci 0000:00:1f.0: quirk: region 0800-087f claimed by ICH6
ACPI/GPIO/TCO
>> pci 0000:00:1f.0: quirk: region 0880-08bf claimed by ICH6 GPIO
>> pci 0000:03:02.0: PME# supported from D0 D1 D2 D3hot D3cold
>> pci 0000:03:02.0: PME# disabled
>> pci 0000:00:1e.0: transparent bridge
>> ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 9 10 *11 12 15)
>> ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 6 7 9 10 11 12 15)
>> ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 *9 10 11 12 15)
>> ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 9 *10 11 12 15)
>> ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 9 10 11 12 15) *0,
>> disabled.
>> ACPI: PCI Interrupt Link [LNKF] (IRQs *3 4 5 6 7 9 10 11 12 15)
>> ACPI: PCI Interrupt Link [LNKG] (IRQs 3 4 *5 6 7 9 10 11 12 15)
>> ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 9 *10 11 12 15)
>> ACPI Warning (tbutils-0217): Incorrect checksum in table [TCPA] - 00,
>> should be 87 [20080926]
>> xen_balloon: Initialising balloon driver.
>> SCSI subsystem initialized
>> usbcore: registered new interface driver usbfs
>> usbcore: registered new interface driver hub
>> usbcore: registered new device driver usb
>> PCI: Using ACPI for IRQ routing
>> Xen: Initializing Xen DMA ops
>> Xen: Enabling DMA fallback to swiotlb
>> PCI-GART: No AMD GART found.
>> pnp: PnP ACPI init
>> ACPI: bus type pnp registered
>> pnp 00:01: io resource (0x800-0x85f) overlaps 0000:00:1f.0 BAR 7
>> (0x800-0x87f), disabling
>> pnp 00:01: io resource (0x860-0x8ff) overlaps 0000:00:1f.0 BAR 7
>> (0x800-0x87f), disabling
>> system 00:01: ioport range 0xc00-0xc7f has been reserved
>> xen_set_ioapic_routing: irq 13 gsi 13 vector 120 ioapic 0 pin 13
>> triggering 1 polarity 0
>> xen_set_ioapic_routing: irq 8 gsi 8 vector 80 ioapic 0 pin 8
>> triggering 1 polarity 0
>> xen_set_ioapic_routing: irq 7 gsi 7 vector 72 ioapic 0 pin 7
>> triggering 1 polarity 0
>> xen_set_ioapic_routing: irq 4 gsi 4 vector 241 ioapic 0 pin 4
>> triggering 1 polarity 0
>> (XEN) ioapic_guest_write: apic=0, pin=4, old_irq=4, new_irq=4
>> (XEN) ioapic_guest_write: old_entry=000009f1, new_entry=000189f1
>> (XEN) ioapic_guest_write: Attempt to modify IO-APIC pin for in-use
IRQ!
>> pnp: PnP ACPI: found 9 devices
>> ACPI: ACPI bus type pnp unregistered
>> pci 0000:00:01.0: PCI bridge, secondary bus 0000:01
>> pci 0000:00:01.0:   IO window: 0xd000-0xdfff
>> pci 0000:00:01.0:   MEM window: 0xfe900000-0xfeafffff
>> pci 0000:00:01.0:   PREFETCH window:
0x000000d0000000-0x000000dfffffff
>> pci 0000:00:1c.0: PCI bridge, secondary bus 0000:02
>> pci 0000:00:1c.0:   IO window: disabled
>> pci 0000:00:1c.0:   MEM window: 0xfe800000-0xfe8fffff
>> pci 0000:00:1c.0:   PREFETCH window: disabled
>> pci 0000:00:1e.0: PCI bridge, secondary bus 0000:03
>> pci 0000:00:1e.0:   IO window: 0xc000-0xcfff
>> pci 0000:00:1e.0:   MEM window: 0xfe600000-0xfe7fffff
>> pci 0000:00:1e.0:   PREFETCH window:
0x00000050000000-0x000000500fffff
>> xen_set_ioapic_routing: irq 29 gsi 16 vector 176 ioapic 0 pin 16
>> triggering 0 polarity 1
>> pci 0000:00:01.0: PCI INT A -> GSI 16 (level, low) -> IRQ 29
>> xen: PCI device 0000:00:01.0 pin 1 -> irq 29
>> xen_allocate_pirq: returning irq 29 for gsi 16
>> xen_set_ioapic_routing: irq 29 gsi 16 vector 176 ioapic 0 pin 16
>> triggering 0 polarity 1
>> pci 0000:00:1c.0: PCI INT A -> GSI 16 (level, low) -> IRQ 29
>> xen: PCI device 0000:00:1c.0 pin 1 -> irq 29
>> bus: 00 index 0 io port: [0x00-0xffff]
>> bus: 00 index 1 mmio: [0x000000-0xffffffffffffffff]
>> bus: 01 index 0 io port: [0xd000-0xdfff]
>> bus: 01 index 1 mmio: [0xfe900000-0xfeafffff]
>> bus: 01 index 2 mmio: [0xd0000000-0xdfffffff]
>> bus: 01 index 3 mmio: [0x0-0x0]
>> bus: 02 index 0 mmio: [0x0-0x0]
>> bus: 02 index 1 mmio: [0xfe800000-0xfe8fffff]
>> bus: 02 index 2 mmio: [0x0-0x0]
>> bus: 02 index 3 mmio: [0x0-0x0]
>> bus: 03 index 0 io port: [0xc000-0xcfff]
>> bus: 03 index 1 mmio: [0xfe600000-0xfe7fffff]
>> bus: 03 index 2 mmio: [0x50000000-0x500fffff]
>> bus: 03 index 3 io port: [0x00-0xffff]
>> bus: 03 index 4 mmio: [0x000000-0xffffffffffffffff]
>> NET: Registered protocol family 2
>> IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
>> TCP established hash table entries: 131072 (order: 9, 2097152 bytes)
>> TCP bind hash table entries: 65536 (order: 8, 1048576 bytes)
>> TCP: Hash tables configured (established 131072 bind 65536)
>> TCP reno registered
>> NET: Registered protocol family 1
>> Simple Boot Flag at 0x7a set to 0x1
>> audit: initializing netlink socket (disabled)
>> type=2000 audit(1229101787.763:1): initialized
>> VFS: Disk quotas dquot_6.5.1
>> Dquot-cache hash table entries: 512 (order 0, 4096 bytes)
>> msgmni has been set to 2048
>> alg: No test for stdrng (krng)
>> Block layer SCSI generic (bsg) driver version 0.4 loaded (major 254)
>> io scheduler noop registered
>> io scheduler anticipatory registered
>> io scheduler deadline registered
>> io scheduler cfq registered (default)
>> pcieport-driver 0000:00:01.0: found MSI capability
>> pcieport-driver 0000:00:1c.0: found MSI capability
>> pci_hotplug: PCI Hot Plug PCI Core version: 0.5
>> input: Power Button (FF) as
/devices/LNXSYSTM:00/LNXPWRBN:00/input/input0
>> ACPI: Power Button (FF) [PWRF]
>> input: Power Button (CM) as
>> /devices/LNXSYSTM:00/device:00/PNP0C0C:00/input/input1
>> ACPI: Power Button (CM) [VBTN]
>> xenbus_probe_backend_init bus registered ok
>> xenbus_probe_frontend_init bus registered ok
>> Event-channel device installed.
>> ***blkif_init
>> Non-volatile memory driver v1.2
>> Linux agpgart interface v0.103
>> [drm] Initialized drm 1.1.0 20060810
>> brd: module loaded
>> loop: module loaded
>> tun: Universal TUN/TAP device driver, 1.6
>> tun: (C) 1999-2004 Max Krasnyansky <maxk@xxxxxxxxxxxx>
>> console [netcon0] enabled
>> netconsole: network logging started
>> Loading iSCSI transport class v2.0-870.
>> Driver 'sd' needs updating - please use bus_type methods
>> Driver 'sr' needs updating - please use bus_type methods
>> xen_set_ioapic_routing: irq 31 gsi 18 vector 184 ioapic 0 pin 18
>> triggering 0 polarity 1
>> ata_piix 0000:00:1f.2: PCI INT C -> GSI 18 (level, low) -> IRQ 31
>> xen: PCI device 0000:00:1f.2 pin 3 -> irq 31
>> ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
>> xen: disable pci device 0000:00:1f.2
>>
>
> Hm, for some reason the ata_piix failed to probe this device.
>
>> Pid: 1, comm: swapper Not tainted 2.6.28-rc8-tip #1
>> Call Trace:
>>  [<ffffffff8037e624>] ? pci_bus_write_config_word+0x65/0x74
>>  [<ffffffff8020ef56>] xen_pci_pirq_disable+0x1e/0x20
>>  [<ffffffff8049df82>] pcibios_disable_device+0x1b/0x1d
>>  [<ffffffff80380442>] pci_disable_device+0x74/0x7b
>>  [<ffffffff80380b11>] ? pci_release_region+0x8e/0xa8
>>  [<ffffffff80380c53>] pcim_release+0x64/0x6d
>>  [<ffffffff8040691c>] release_nodes+0x163/0x18e
>>  [<ffffffff804069fc>] devres_release_all+0x31/0x35
>>  [<ffffffff80404af5>] driver_probe_device+0xfc/0x16d
>>  [<ffffffff80404bc8>] __driver_attach+0x62/0x8c
>>  [<ffffffff80404b66>] ? __driver_attach+0x0/0x8c
>>  [<ffffffff80404b66>] ? __driver_attach+0x0/0x8c
>>  [<ffffffff804040fa>] bus_for_each_dev+0x4a/0x79
>>  [<ffffffff80404903>] driver_attach+0x1c/0x1e
>>  [<ffffffff8040456b>] bus_add_driver+0xb7/0x209
>>  [<ffffffff80404e63>] driver_register+0x93/0x10a
>>  [<ffffffff803837cf>] __pci_register_driver+0x63/0x9c
>>  [<ffffffff807651a0>] ? piix_init+0x0/0x2c
>>  [<ffffffff807651b9>] piix_init+0x19/0x2c
>>  [<ffffffff8020a056>] do_one_initcall+0x56/0x13e
>>  [<ffffffff8026c436>] ? register_irq_proc+0xae/0xca
>>  [<ffffffff802e0000>] ? free_proc_entry+0x37/0x68
>>  [<ffffffff8074195d>] kernel_init+0x11f/0x175
>>  [<ffffffff802133fa>] child_rip+0xa/0x20
>>  [<ffffffff80212ced>] ? retint_restore_args+0x5/0x20
>>  [<ffffffff802133f0>] ? child_rip+0x0/0x20
>> ata_piix: probe of 0000:00:1f.2 failed with error -38
>> xen_allocate_pirq: returning irq 31 for gsi 18
>> xen_set_ioapic_routing: irq 31 gsi 18 vector 184 ioapic 0 pin 18
>> triggering 0 polarity 1
>> ata_piix 0000:00:1f.5: PCI INT C -> GSI 18 (level, low) -> IRQ 31
>> xen: PCI device 0000:00:1f.5 pin 3 -> irq 31
>> ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
>> scsi0 : ata_piix
>> scsi1 : ata_piix
>> ata1: SATA max UDMA/133 cmd 0xfe40 ctl 0xfe50 bmdma 0xfed0 irq 31
>> ata2: SATA max UDMA/133 cmd 0xfe60 ctl 0xfe70 bmdma 0xfed8 irq 31
>>
>
> But this looks OK.  It found a couple of drives, I think.  Though I
don't
> see any drive identity messages, so perhaps it didn't find anything..

Pretty sure it didnt detect the drives, booting the same kernel on
bare metal detects the hd (WD360GD-00FLA2), which proves that the
kernel has the correct drivers, in both ahci and legacy mode the
kernel works on the bare metal but not under Xen.

dmesg from the same kernel without xen:

ata_piix 0000:00:1f.2: PCI INT C -> GSI 18 (level, low) -> IRQ 18
ata_piix 0000:00:1f.2: MAP [ P0 P2 P1 P3 ]
ata_piix 0000:00:1f.2: setting latency timer to 64
scsi0 : ata_piix
scsi1 : ata_piix
ata1: SATA max UDMA/133 cmd 0x1f0 ctl 0x3f6 bmdma 0xfec0 irq 14
ata2: SATA max UDMA/133 cmd 0x170 ctl 0x376 bmdma 0xfec8 irq 15
ata1.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata1.01: SATA link down (SStatus 4 SControl 300)
ata1.00: ATA-6: WDC WD360GD-00FLA2, 31.08F31, max UDMA/133
ata1.00: 72303840 sectors, multi 8: LBA48
ata1.00: configured for UDMA/133
ata2.00: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
ata2.01: SATA link down (SStatus 4 SControl 300)
ata2.00: ATAPI: HL-DT-ST DVD+/-RW GSA-H73N, B103, max UDMA/100
ata2.00: configured for UDMA/100
scsi 0:0:0:0: Direct-Access     ATA      WDC WD360GD-00FL 31.0 PQ: 0
ANSI: 5
sd 0:0:0:0: [sda] 72303840 512-byte hardware sectors: (37.0 GB/34.4 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
sd 0:0:0:0: [sda] 72303840 512-byte hardware sectors: (37.0 GB/34.4 GiB)
sd 0:0:0:0: [sda] Write Protect is off
sd 0:0:0:0: [sda] Mode Sense: 00 3a 00 00
sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't
support DPO or FUA
 sda: sda1 sda2 sda3
sd 0:0:0:0: [sda] Attached SCSI disk
sd 0:0:0:0: Attached scsi generic sg0 type 0
scsi 1:0:0:0: CD-ROM            HL-DT-ST DVD+-RW GSA-H73N B103 PQ: 0
ANSI: 5
sr0: scsi3-mmc drive: 48x/48x writer cd/rw xa/form2 cdda tray
Uniform CD-ROM driver Revision: 3.20
sr 1:0:0:0: Attached scsi CD-ROM sr0
sr 1:0:0:0: Attached scsi generic sg1 type 5
ata_piix 0000:00:1f.5: PCI INT C -> GSI 18 (level, low) -> IRQ 18
ata_piix 0000:00:1f.5: MAP [ P0 -- P1 -- ]
ata_piix 0000:00:1f.5: setting latency timer to 64
scsi2 : ata_piix
scsi3 : ata_piix
ata3: SATA max UDMA/133 cmd 0xfe40 ctl 0xfe50 bmdma 0xfed0 irq 18
ata4: SATA max UDMA/133 cmd 0xfe60 ctl 0xfe70 bmdma 0xfed8 irq 18
ata3: SATA link down (SStatus 4 SControl 300)
ata4: SATA link down (SStatus 4 SControl 300)

But under Xen both sata links are down:

ata1: SATA link down (SStatus 4 SControl 300)
ata2: SATA link down (SStatus 4 SControl 300)

>
>> ata1: SATA link down (SStatus 4 SControl 300)
>> ata2: SATA link down (SStatus 4 SControl 300)
>> ehci_hcd: USB 2.0 'Enhanced' Host Controller (EHCI) Driver
>> xen_set_ioapic_routing: irq 32 gsi 22 vector 192 ioapic 0 pin 22
>> triggering 0 polarity 1
>> ehci_hcd 0000:00:1a.7: PCI INT C -> GSI 22 (level, low) -> IRQ 32
>> xen: PCI device 0000:00:1a.7 pin 3 -> irq 32
>> ehci_hcd 0000:00:1a.7: EHCI Host Controller
>> ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus number 1
>> ehci_hcd 0000:00:1a.7: debug port 1
>> ehci_hcd 0000:00:1a.7: irq 32, io mem 0xfebd9c00
>> ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00
>> usb usb1: configuration #1 chosen from 1 choice
>> hub 1-0:1.0: USB hub found
>> hub 1-0:1.0: 6 ports detected
>> usb usb1: New USB device found, idVendor=1d6b, idProduct=0002
>> usb usb1: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb1: Product: EHCI Host Controller
>> usb usb1: Manufacturer: Linux 2.6.28-rc8-tip ehci_hcd
>> usb usb1: SerialNumber: 0000:00:1a.7
>> xen_set_ioapic_routing: irq 33 gsi 23 vector 200 ioapic 0 pin 23
>> triggering 0 polarity 1
>> ehci_hcd 0000:00:1d.7: PCI INT A -> GSI 23 (level, low) -> IRQ 33
>> xen: PCI device 0000:00:1d.7 pin 1 -> irq 33
>> ehci_hcd 0000:00:1d.7: EHCI Host Controller
>> ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 2
>> ehci_hcd 0000:00:1d.7: debug port 1
>> ehci_hcd 0000:00:1d.7: irq 33, io mem 0xff980800
>> ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00
>> usb usb2: configuration #1 chosen from 1 choice
>> hub 2-0:1.0: USB hub found
>> hub 2-0:1.0: 6 ports detected
>> usb usb2: New USB device found, idVendor=1d6b, idProduct=0002
>> usb usb2: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb2: Product: EHCI Host Controller
>> usb usb2: Manufacturer: Linux 2.6.28-rc8-tip ehci_hcd
>> usb usb2: SerialNumber: 0000:00:1d.7
>> ohci_hcd: USB 1.1 'Open' Host Controller (OHCI) Driver
>> uhci_hcd: USB Universal Host Controller Interface driver
>> xen_allocate_pirq: returning irq 29 for gsi 16
>> xen_set_ioapic_routing: irq 29 gsi 16 vector 176 ioapic 0 pin 16
>> triggering 0 polarity 1
>> uhci_hcd 0000:00:1a.0: PCI INT A -> GSI 16 (level, low) -> IRQ 29
>> xen: PCI device 0000:00:1a.0 pin 1 -> irq 29
>> uhci_hcd 0000:00:1a.0: UHCI Host Controller
>> uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 3
>> uhci_hcd 0000:00:1a.0: detected 2 ports
>> uhci_hcd 0000:00:1a.0: irq 29, io base 0x0000ff20
>> usb usb3: configuration #1 chosen from 1 choice
>> hub 3-0:1.0: USB hub found
>> hub 3-0:1.0: 2 ports detected
>> usb usb3: New USB device found, idVendor=1d6b, idProduct=0001
>> usb usb3: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb3: Product: UHCI Host Controller
>> usb usb3: Manufacturer: Linux 2.6.28-rc8-tip uhci_hcd
>> usb usb3: SerialNumber: 0000:00:1a.0
>> xen_set_ioapic_routing: irq 34 gsi 17 vector 208 ioapic 0 pin 17
>> triggering 0 polarity 1
>> uhci_hcd 0000:00:1a.1: PCI INT B -> GSI 17 (level, low) -> IRQ 34
>> xen: PCI device 0000:00:1a.1 pin 2 -> irq 34
>> uhci_hcd 0000:00:1a.1: UHCI Host Controller
>> uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 4
>> uhci_hcd 0000:00:1a.1: detected 2 ports
>> uhci_hcd 0000:00:1a.1: irq 34, io base 0x0000ff00
>> usb usb4: configuration #1 chosen from 1 choice
>> hub 4-0:1.0: USB hub found
>> hub 4-0:1.0: 2 ports detected
>> usb usb4: New USB device found, idVendor=1d6b, idProduct=0001
>> usb usb4: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb4: Product: UHCI Host Controller
>> usb usb4: Manufacturer: Linux 2.6.28-rc8-tip uhci_hcd
>> usb usb4: SerialNumber: 0000:00:1a.1
>> xen_allocate_pirq: returning irq 33 for gsi 23
>> xen_set_ioapic_routing: irq 33 gsi 23 vector 200 ioapic 0 pin 23
>> triggering 0 polarity 1
>> uhci_hcd 0000:00:1d.0: PCI INT A -> GSI 23 (level, low) -> IRQ 33
>> xen: PCI device 0000:00:1d.0 pin 1 -> irq 33
>> uhci_hcd 0000:00:1d.0: UHCI Host Controller
>> uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 5
>> uhci_hcd 0000:00:1d.0: detected 2 ports
>> uhci_hcd 0000:00:1d.0: irq 33, io base 0x0000ff80
>> usb usb5: configuration #1 chosen from 1 choice
>> hub 5-0:1.0: USB hub found
>> hub 5-0:1.0: 2 ports detected
>> usb usb5: New USB device found, idVendor=1d6b, idProduct=0001
>> usb usb5: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb5: Product: UHCI Host Controller
>> usb usb5: Manufacturer: Linux 2.6.28-rc8-tip uhci_hcd
>> usb usb5: SerialNumber: 0000:00:1d.0
>> xen_allocate_pirq: returning irq 34 for gsi 17
>> xen_set_ioapic_routing: irq 34 gsi 17 vector 208 ioapic 0 pin 17
>> triggering 0 polarity 1
>> uhci_hcd 0000:00:1d.1: PCI INT B -> GSI 17 (level, low) -> IRQ 34
>> xen: PCI device 0000:00:1d.1 pin 2 -> irq 34
>> uhci_hcd 0000:00:1d.1: UHCI Host Controller
>> uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 6
>> uhci_hcd 0000:00:1d.1: detected 2 ports
>> uhci_hcd 0000:00:1d.1: irq 34, io base 0x0000ff60
>> usb usb6: configuration #1 chosen from 1 choice
>> hub 6-0:1.0: USB hub found
>> hub 6-0:1.0: 2 ports detected
>> usb usb6: New USB device found, idVendor=1d6b, idProduct=0001
>> usb usb6: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb6: Product: UHCI Host Controller
>> usb usb6: Manufacturer: Linux 2.6.28-rc8-tip uhci_hcd
>> usb usb6: SerialNumber: 0000:00:1d.1
>> xen_allocate_pirq: returning irq 31 for gsi 18
>> xen_set_ioapic_routing: irq 31 gsi 18 vector 184 ioapic 0 pin 18
>> triggering 0 polarity 1
>> uhci_hcd 0000:00:1d.2: PCI INT C -> GSI 18 (level, low) -> IRQ 31
>> xen: PCI device 0000:00:1d.2 pin 3 -> irq 31
>> uhci_hcd 0000:00:1d.2: UHCI Host Controller
>> uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 7
>> uhci_hcd 0000:00:1d.2: detected 2 ports
>> uhci_hcd 0000:00:1d.2: irq 31, io base 0x0000ff40
>> usb usb7: configuration #1 chosen from 1 choice
>> hub 7-0:1.0: USB hub found
>> hub 7-0:1.0: 2 ports detected
>> usb usb7: New USB device found, idVendor=1d6b, idProduct=0001
>> usb usb7: New USB device strings: Mfr=3, Product=2, SerialNumber=1
>> usb usb7: Product: UHCI Host Controller
>> usb usb7: Manufacturer: Linux 2.6.28-rc8-tip uhci_hcd
>> usb usb7: SerialNumber: 0000:00:1d.2
>> usbcore: registered new interface driver usblp
>> Initializing USB Mass Storage driver...
>> usbcore: registered new interface driver usb-storage
>> USB Mass Storage support registered.
>> usbcore: registered new interface driver libusual
>> PNP: No PS/2 controller found. Probing ports directly.
>> i8042: probe of i8042 failed with error -38
>> mice: PS/2 mouse device common for all mice
>> device-mapper: ioctl: 4.14.0-ioctl (2008-04-23) initialised:
>> dm-devel@xxxxxxxxxx
>> cpuidle: using governor ladder
>> dcdbas dcdbas: Dell Systems Management Base Driver (version
5.6.0-3.2)
>> TCP cubic registered
>> NET: Registered protocol family 17
>> RPC: Registered udp transport module.
>> RPC: Registered tcp transport module.
>> IO APIC resources could be not be allocated.
>> registered taskstats version 1
>>  Magic number: 4:358:188
>> md: Waiting for all devices to be available before autodetect
>> md: If you don't use raid, use raid=noautodetect
>> md: Autodetecting RAID arrays.
>> md: Scanned 0 and added 0 devices.
>> md: autorun ...
>> md: ... autorun DONE.
>> Root-NFS: No NFS server available, giving up.
>> VFS: Unable to mount root fs via NFS, trying floppy.
>> VFS: Cannot open root device "sda2" or unknown-block(2,0)
>> Please append a correct "root=" boot option; here are the available
>> partitions:
>> Kernel panic - not syncing: VFS: Unable to mount root fs on
>> unknown-block(2,0)
>>
>
> What are you specifying as a root device?  Is it a logical or physical
> filesystem reference?

root is a physical partition (sda2)

I will not be at work until tuesday and I want to continue to work on
this, so I wonder if anybody could tell me how to setup xen and linux
such that any oops/crash/failure to mount root filesystem results in a
reboot? I have a serial console setup which I can access remotely, but
I have no way to reset or power cycle the system.

Andy

>
>   J
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@xxxxxxxxxxxxxxxxxxx
> http://lists.xensource.com/xen-devel
>

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