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    SubjectNO_HZ: timer interrupt stuck [Re: Linux 2.6.21-rc1]
    Linus Torvalds <torvalds@linux-foundation.org> ha scritto:
    > Ok, the merge window for 2.6.21 has closed, and -rc1 is out there.
    >
    > There's a lot of changes, as is usual for an -rc1 thing, but at least so
    > far it would seem that 2.6.20 has been a good base, and I don't think we
    > have anything *really* scary here.
    >
    > The most interesting core change may be the dyntick/nohz one, where timer
    > ticks will only happen when needed. It's been brewing for a _loong_ time,
    > but it's in the standard kernel now as an option.

    Hi Thomas,
    I'm testing NO_HZ on my machines. On the laptop I see that the timer
    interrupt counter is incremented (though slower than HZ). This machine
    is running UP kernel.

    On my desktop I see this:

    CPU0 CPU1
    0: 114 0 IO-APIC-edge timer
    1: 1624 10771 IO-APIC-edge i8042
    6: 3 0 IO-APIC-edge floppy
    7: 0 0 IO-APIC-edge parport0
    9: 0 0 IO-APIC-fasteoi acpi
    12: 40111 184047 IO-APIC-edge i8042
    16: 75624 998858 IO-APIC-fasteoi radeon@pci:0000:01:00.0, uhci_hcd:usb1
    17: 0 0 IO-APIC-fasteoi uhci_hcd:usb4
    18: 711 5487 IO-APIC-fasteoi ide1, libata, ehci_hcd:usb7, uhci_hcd:usb3
    19: 617 2254 IO-APIC-fasteoi libata, uhci_hcd:usb2
    20: 0 0 IO-APIC-fasteoi ehci_hcd:usb6, uhci_hcd:usb5
    21: 2483869 0 IO-APIC-fasteoi eth0
    22: 2 0 IO-APIC-fasteoi ohci1394
    218: 28872 360643 PCI-MSI-edge HDA Intel
    219: 32932 138196 PCI-MSI-edge libata
    NMI: 0 0
    LOC: 2761191 2827539
    ERR: 0
    MIS: 0

    Interrupt 0 is stuck at 114 (the number is consistent across reboots). I
    don't experience any problem, time is running fine. Still it's strange
    that the timer is doing nothing; maybe something other than the PIT is
    used for time keeping?

    This is the dmesg of the "abnormal" machine (dual core, SMP kernel):

    Linux version 2.6.20-ge696268a-dirty (kronos@dreamland.darkstar.lan) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #33 SMP PREEMPT Tue Feb 20 23:24:24 CET 2007
    BIOS-provided physical RAM map:
    sanitize start
    sanitize end
    copy_e820_map() start: 0000000000000000 size: 000000000009c800 end: 000000000009c800 type: 1
    copy_e820_map() type is E820_RAM
    copy_e820_map() start: 000000000009c800 size: 0000000000003800 end: 00000000000a0000 type: 2
    copy_e820_map() start: 00000000000e4000 size: 000000000001c000 end: 0000000000100000 type: 2
    copy_e820_map() start: 0000000000100000 size: 000000003fe90000 end: 000000003ff90000 type: 1
    copy_e820_map() type is E820_RAM
    copy_e820_map() start: 000000003ff90000 size: 000000000000e000 end: 000000003ff9e000 type: 3
    copy_e820_map() start: 000000003ff9e000 size: 0000000000042000 end: 000000003ffe0000 type: 4
    copy_e820_map() start: 000000003ffe0000 size: 0000000000020000 end: 0000000040000000 type: 2
    copy_e820_map() start: 00000000fee00000 size: 0000000000001000 end: 00000000fee01000 type: 2
    copy_e820_map() start: 00000000ffb00000 size: 0000000000500000 end: 0000000100000000 type: 2
    BIOS-e820: 0000000000000000 - 000000000009c800 (usable)
    BIOS-e820: 000000000009c800 - 00000000000a0000 (reserved)
    BIOS-e820: 00000000000e4000 - 0000000000100000 (reserved)
    BIOS-e820: 0000000000100000 - 000000003ff90000 (usable)
    BIOS-e820: 000000003ff90000 - 000000003ff9e000 (ACPI data)
    BIOS-e820: 000000003ff9e000 - 000000003ffe0000 (ACPI NVS)
    BIOS-e820: 000000003ffe0000 - 0000000040000000 (reserved)
    BIOS-e820: 00000000fee00000 - 00000000fee01000 (reserved)
    BIOS-e820: 00000000ffb00000 - 0000000100000000 (reserved)
    1023MB LOWMEM available.
    found SMP MP-table at 000ff780
    Entering add_active_range(0, 0, 262032) 0 entries of 256 used
    Zone PFN ranges:
    DMA 0 -> 4096
    Normal 4096 -> 262032
    early_node_map[1] active PFN ranges
    0: 0 -> 262032
    On node 0 totalpages: 262032
    DMA zone: 32 pages used for memmap
    DMA zone: 0 pages reserved
    DMA zone: 4064 pages, LIFO batch:0
    Normal zone: 2015 pages used for memmap
    Normal zone: 255921 pages, LIFO batch:31
    DMI 2.4 present.
    ACPI: RSDP 000FA980, 0024 (r2 ACPIAM)
    ACPI: XSDT 3FF90100, 0054 (r1 KOZIRO FRONTIER 12000611 MSFT 97)
    ACPI: FACP 3FF90290, 00F4 (r3 MSTEST OEMFACP 12000611 MSFT 97)
    ACPI: DSDT 3FF905C0, 8F8C (r1 A0637 A0637000 0 INTL 20060113)
    ACPI: FACS 3FF9E000, 0040
    ACPI: APIC 3FF90390, 006C (r1 MSTEST OEMAPIC 12000611 MSFT 97)
    ACPI: MCFG 3FF90400, 003C (r1 MSTEST OEMMCFG 12000611 MSFT 97)
    ACPI: SLIC 3FF90440, 0176 (r1 KOZIRO FRONTIER 12000611 MSFT 97)
    ACPI: OEMB 3FF9E040, 007B (r1 MSTEST AMI_OEM 12000611 MSFT 97)
    ACPI: HPET 3FF99550, 0038 (r1 MSTEST OEMHPET 12000611 MSFT 97)
    ACPI: PM-Timer IO Port: 0x808
    ACPI: Local APIC address 0xfee00000
    ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
    Processor #0 6:15 APIC version 20
    ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
    Processor #1 6:15 APIC version 20
    ACPI: LAPIC (acpi_id[0x03] lapic_id[0x82] disabled)
    ACPI: LAPIC (acpi_id[0x04] lapic_id[0x83] disabled)
    ACPI: IOAPIC (id[0x02] address[0xfec00000] gsi_base[0])
    IOAPIC[0]: apic_id 2, version 32, 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)
    ACPI: IRQ0 used by override.
    ACPI: IRQ2 used by override.
    ACPI: IRQ9 used by override.
    Enabling APIC mode: Flat. Using 1 I/O APICs
    ACPI: HPET id: 0x8086a202 base: 0xfed00000
    Using ACPI (MADT) for SMP configuration information
    Allocating PCI resources starting at 50000000 (gap: 40000000:bee00000)
    Detected 2135.184 MHz processor.
    Built 1 zonelists. Total pages: 259985
    Kernel command line: BOOT_IMAGE=linux-2.6.20g ro video=radeonfb:1024x768-8@60 lapic apic=verbose root=/dev/mapper/main_vol-root
    mapped APIC to ffffd000 (fee00000)
    mapped IOAPIC to ffffc000 (fec00000)
    Enabling fast FPU save and restore... done.
    Enabling unmasked SIMD FPU exception support... done.
    Initializing CPU#0
    CPU 0 irqstacks, hard=b042f000 soft=b042d000
    PID hash table entries: 4096 (order: 12, 16384 bytes)
    Console: colour VGA+ 80x25
    Lock dependency validator: Copyright (c) 2006 Red Hat, Inc., Ingo Molnar
    ... MAX_LOCKDEP_SUBCLASSES: 8
    ... MAX_LOCK_DEPTH: 30
    ... MAX_LOCKDEP_KEYS: 2048
    ... CLASSHASH_SIZE: 1024
    ... MAX_LOCKDEP_ENTRIES: 8192
    ... MAX_LOCKDEP_CHAINS: 16384
    ... CHAINHASH_SIZE: 8192
    memory used by lock dependency info: 1096 kB
    per task-struct memory footprint: 1200 bytes
    ------------------------
    | Locking API testsuite:
    [cut, everything is ok]
    -------------------------------------------------------
    Good, all 218 testcases passed! |
    ---------------------------------
    Dentry cache hash table entries: 131072 (order: 7, 524288 bytes)
    Inode-cache hash table entries: 65536 (order: 6, 262144 bytes)
    Memory: 1029640k/1048128k available (2028k kernel code, 17904k reserved, 985k data, 200k init, 0k highmem)
    virtual kernel memory layout:
    fixmap : 0xfffb7000 - 0xfffff000 ( 288 kB)
    vmalloc : 0xf0800000 - 0xfffb5000 ( 247 MB)
    lowmem : 0xb0000000 - 0xeff90000 (1023 MB)
    .init : 0xb03f6000 - 0xb0428000 ( 200 kB)
    .data : 0xb02fb094 - 0xb03f1814 ( 985 kB)
    .text : 0xb0100000 - 0xb02fb094 (2028 kB)
    Checking if this processor honours the WP bit even in supervisor mode... Ok.
    hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
    hpet0: 3 64-bit timers, 14318180 Hz
    Calibrating delay using timer specific routine.. 4273.73 BogoMIPS (lpj=8547462)
    Mount-cache hash table entries: 512
    CPU: After generic identify, caps: bfebfbff 20100000 00000000 00000000 0000e3bd 00000000 00000001
    monitor/mwait feature present.
    using mwait in idle threads.
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 2048K
    CPU: Physical Processor ID: 0
    CPU: Processor Core ID: 0
    CPU: After all inits, caps: bfebfbff 20100000 00000000 00003940 0000e3bd 00000000 00000001
    Intel machine check architecture supported.
    Intel machine check reporting enabled on CPU#0.
    Compat vDSO mapped to ffffe000.
    Checking 'hlt' instruction... OK.
    lockdep: not fixing up alternatives.
    ACPI: Core revision 20070126
    Parsing all Control Methods:
    Table [DSDT](id 0001) - 1008 Objects with 75 Devices 286 Methods 36 Regions
    tbxface-0587 [02] tb_load_namespace : ACPI Tables successfully acquired
    evxfevnt-0091 [02] enable : Transition to ACPI mode successful
    CPU0: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz stepping 06
    enabled ExtINT on CPU#0
    lockdep: not fixing up alternatives.
    Booting processor 1/1 eip 3000
    CPU 1 irqstacks, hard=b0430000 soft=b042e000
    Initializing CPU#1
    masked ExtINT on CPU#1
    Calibrating delay using timer specific routine.. 4270.09 BogoMIPS (lpj=8540188)
    CPU: After generic identify, caps: bfebfbff 20100000 00000000 00000000 0000e3bd 00000000 00000001
    monitor/mwait feature present.
    CPU: L1 I cache: 32K, L1 D cache: 32K
    CPU: L2 cache: 2048K
    CPU: Physical Processor ID: 0
    CPU: Processor Core ID: 1
    CPU: After all inits, caps: bfebfbff 20100000 00000000 00003940 0000e3bd 00000000 00000001
    Intel machine check architecture supported.
    Intel machine check reporting enabled on CPU#1.
    CPU1: Intel(R) Core(TM)2 CPU 6400 @ 2.13GHz stepping 06
    Total of 2 processors activated (8543.82 BogoMIPS).
    ENABLING IO-APIC IRQs
    init IO_APIC IRQs
    IO-APIC (apicid-pin) 2-0, 2-16, 2-17, 2-18, 2-19, 2-20, 2-21, 2-22, 2-23 not connected.
    ..TIMER: vector=0x31 apic1=0 pin1=2 apic2=-1 pin2=-1
    Using local APIC timer interrupts.
    calibrating APIC timer ...
    ... lapic delta = 1667977
    ... PM timer delta = 357949
    ... PM timer result ok
    ..... delta 1667977
    ..... mult: 71634589
    ..... calibration result: 1067505
    ..... CPU clock speed is 2135.0043 MHz.
    ..... host bus clock speed is 266.3505 MHz.
    ... verify APIC timer
    ... jiffies delta = 25
    ... PM timer delta = 357949
    ... PM timer result ok
    checking TSC synchronization [CPU#0 -> CPU#1]: passed.
    Brought up 2 CPUs
    migration_cost=21
    NET: Registered protocol family 16
    ACPI: bus type pci registered
    PCI: BIOS Bug: MCFG area at e0000000 is not E820-reserved
    PCI: Not using MMCONFIG.
    PCI: PCI BIOS revision 3.00 entry at 0xf0031, last bus=5
    PCI: Using configuration type 1
    Setting up standard PCI resources
    evgpeblk-0952 [04] ev_create_gpe_block : GPE 00 to 1F [_GPE] 4 regs on int 0x9
    evgpeblk-1049 [03] ev_initialize_gpe_bloc: Found 11 Wake, Enabled 2 Runtime GPEs in this block
    Completing Region/Field/Buffer/Package initialization:.....................................................................................................................................................................................................................................
    Initialized 35/36 Regions 44/44 Fields 51/51 Buffers 99/100 Packages (1017 nodes)
    Initializing Device/Processor/Thermal objects by executing _INI methods:.
    Executed 1 _INI methods requiring 1 _STA executions (examined 81 objects)
    ACPI: Interpreter enabled
    ACPI: (supports S0 S1 S3 S4 S5)
    ACPI: Using IOAPIC for interrupt routing
    ACPI: PCI Root Bridge [PCI0] (0000:00)
    PCI: Probing PCI hardware (bus 00)
    PCI quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
    PCI quirk: region 0480-04bf claimed by ICH6 GPIO
    Boot video device is 0000:01:00.0
    PCI: Firmware left 0000:05:01.0 e100 interrupts enabled, disabling
    PCI: Transparent bridge - 0000:00:1e.0
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P2._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P1._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P4._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P7._PRT]
    ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.P0P8._PRT]
    ACPI: PCI Interrupt Link [LNKA] (IRQs 3 4 5 6 7 10 *11 12 14 15)
    ACPI: PCI Interrupt Link [LNKB] (IRQs 3 4 *5 6 7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKC] (IRQs 3 4 5 6 7 10 11 12 14 *15)
    ACPI: PCI Interrupt Link [LNKD] (IRQs 3 4 5 6 7 *10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKE] (IRQs 3 4 5 6 7 10 11 12 14 15) *0, disabled.
    ACPI: PCI Interrupt Link [LNKF] (IRQs 3 4 5 6 7 10 *11 12 14 15)
    ACPI: PCI Interrupt Link [LNKG] (IRQs *3 4 5 6 7 10 11 12 14 15)
    ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 10 11 12 *14 15)
    Linux Plug and Play Support v0.97 (c) Adam Belay
    pnp: PnP ACPI init
    pnp: PnP ACPI: found 17 devices
    SCSI subsystem initialized
    libata version 2.10 loaded.
    PCI: Using ACPI for IRQ routing
    PCI: If a device doesn't work, try "pci=routeirq". If it helps, post a report
    number of MP IRQ sources: 15.
    number of IO-APIC #2 registers: 24.
    testing the IO APIC.......................
    IO APIC #2......
    .... register #00: 02000000
    ....... : physical APIC id: 02
    ....... : Delivery Type: 0
    ....... : LTS : 0
    .... register #01: 00170020
    ....... : max redirection entries: 0017
    ....... : PRQ implemented: 0
    ....... : IO APIC version: 0020
    .... IRQ redirection table:
    NR Log Phy Mask Trig IRR Pol Stat Dest Deli Vect:
    00 000 00 1 0 0 0 0 0 0 00
    01 003 03 1 0 0 0 0 1 1 39
    02 003 03 0 0 0 0 0 1 1 31
    03 003 03 0 0 0 0 0 1 1 41
    04 003 03 1 0 0 0 0 1 1 49
    05 003 03 0 0 0 0 0 1 1 51
    06 003 03 1 0 0 0 0 1 1 59
    07 003 03 1 0 0 0 0 1 1 61
    08 003 03 1 0 0 0 0 1 1 69
    09 003 03 0 1 0 0 0 1 1 71
    0a 003 03 0 0 0 0 0 1 1 79
    0b 003 03 0 0 0 0 0 1 1 81
    0c 003 03 1 0 0 0 0 1 1 89
    0d 003 03 1 0 0 0 0 1 1 91
    0e 003 03 0 0 0 0 0 1 1 99
    0f 003 03 0 0 0 0 0 1 1 A1
    10 000 00 1 0 0 0 0 0 0 00
    11 000 00 1 0 0 0 0 0 0 00
    12 000 00 1 0 0 0 0 0 0 00
    13 000 00 1 0 0 0 0 0 0 00
    14 000 00 1 0 0 0 0 0 0 00
    15 000 00 1 0 0 0 0 0 0 00
    16 000 00 1 0 0 0 0 0 0 00
    17 000 00 1 0 0 0 0 0 0 00
    IRQ to pin mappings:
    IRQ0 -> 0:2
    IRQ1 -> 0:1
    IRQ3 -> 0:3
    IRQ4 -> 0:4
    IRQ5 -> 0:5
    IRQ6 -> 0:6
    IRQ7 -> 0:7
    IRQ8 -> 0:8
    IRQ9 -> 0:9
    IRQ10 -> 0:10
    IRQ11 -> 0:11
    IRQ12 -> 0:12
    IRQ13 -> 0:13
    IRQ14 -> 0:14
    IRQ15 -> 0:15
    .................................... done.
    PCI: Cannot allocate resource region 2 of device 0000:02:00.0
    PCI: Cannot allocate resource region 3 of device 0000:02:00.0
    pnp: 00:01: iomem range 0xfed14000-0xfed19fff has been reserved
    pnp: 00:08: ioport range 0x290-0x297 has been reserved
    pnp: 00:09: iomem range 0xffafe000-0xffb0cbff has been reserved
    pnp: 00:09: iomem range 0xffb00000-0xffbfffff could not be reserved
    pnp: 00:09: iomem range 0xfed1c000-0xfed1ffff has been reserved
    pnp: 00:09: iomem range 0xfed20000-0xfed8ffff has been reserved
    pnp: 00:0c: iomem range 0xfec00000-0xfec00fff has been reserved
    pnp: 00:0c: iomem range 0xfee00000-0xfee00fff has been reserved
    pnp: 00:0f: iomem range 0xe0000000-0xefffffff has been reserved
    pnp: 00:10: iomem range 0x0-0x9ffff could not be reserved
    pnp: 00:10: iomem range 0xc0000-0xcffff could not be reserved
    pnp: 00:10: iomem range 0xe0000-0xfffff could not be reserved
    pnp: 00:10: iomem range 0x100000-0x3fffffff could not be reserved
    PCI: Bridge: 0000:00:01.0
    IO window: 7000-9fff
    MEM window: ff200000-ff2fffff
    PREFETCH window: bfd00000-dfcfffff
    PCI: Bridge: 0000:00:1c.0
    IO window: disabled.
    MEM window: disabled.
    PREFETCH window: dfd00000-dfdfffff
    PCI: Bridge: 0000:00:1c.3
    IO window: disabled.
    MEM window: ff400000-ff4fffff
    PREFETCH window: disabled.
    PCI: Bridge: 0000:00:1c.4
    IO window: a000-afff
    MEM window: ff300000-ff3fffff
    PREFETCH window: disabled.
    PCI: Bridge: 0000:00:1e.0
    IO window: b000-cfff
    MEM window: ff500000-ff9fffff
    PREFETCH window: dfe00000-dfefffff
    ACPI: PCI Interrupt 0000:00:01.0[A] -> GSI 16 (level, low) -> IRQ 16
    PCI: Setting latency timer of device 0000:00:01.0 to 64
    ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 16 (level, low) -> IRQ 16
    PCI: Setting latency timer of device 0000:00:1c.0 to 64
    ACPI: PCI Interrupt 0000:00:1c.3[D] -> GSI 19 (level, low) -> IRQ 17
    PCI: Setting latency timer of device 0000:00:1c.3 to 64
    ACPI: PCI Interrupt 0000:00:1c.4[A] -> GSI 16 (level, low) -> IRQ 16
    PCI: Setting latency timer of device 0000:00:1c.4 to 64
    PCI: Setting latency timer of device 0000:00:1e.0 to 64
    NET: Registered protocol family 2
    IP route cache hash table entries: 32768 (order: 5, 131072 bytes)
    TCP established hash table entries: 65536 (order: 9, 2621440 bytes)
    TCP bind hash table entries: 65536 (order: 9, 2359296 bytes)
    TCP: Hash tables configured (established 65536 bind 65536)
    TCP reno registered
    checking if image is initramfs... it is
    Freeing initrd memory: 2718k freed
    Machine check exception polling timer started.
    Total HugeTLB memory allocated, 0
    io scheduler noop registered
    io scheduler anticipatory registered (default)
    io scheduler deadline registered
    io scheduler cfq registered
    PCI: Setting latency timer of device 0000:00:01.0 to 64
    assign_interrupt_mode Found MSI capability
    Allocate Port Service[0000:00:01.0:pcie00]
    PCI: Setting latency timer of device 0000:00:1c.0 to 64
    assign_interrupt_mode Found MSI capability
    Allocate Port Service[0000:00:1c.0:pcie00]
    Allocate Port Service[0000:00:1c.0:pcie02]
    PCI: Setting latency timer of device 0000:00:1c.3 to 64
    assign_interrupt_mode Found MSI capability
    Allocate Port Service[0000:00:1c.3:pcie00]
    Allocate Port Service[0000:00:1c.3:pcie02]
    PCI: Setting latency timer of device 0000:00:1c.4 to 64
    assign_interrupt_mode Found MSI capability
    Allocate Port Service[0000:00:1c.4:pcie00]
    Allocate Port Service[0000:00:1c.4:pcie02]
    radeonfb_pci_register BEGIN
    ACPI: PCI Interrupt 0000:01:00.0[A] -> GSI 16 (level, low) -> IRQ 16
    radeonfb (0000:01:00.0): Found 131072k of DDR 256 bits wide videoram
    radeonfb (0000:01:00.0): mapped 16384k videoram
    radeonfb: Found Intel x86 BIOS ROM Image
    Retrieved PLL infos from ATOM BIOS
    radeonfb: Reference=27.00 MHz (RefDiv=12) Memory=540.00 Mhz, System=520.00 MHz
    PLL min 20000 max 50000
    TMDS PLL from BIOS: 16500 b011c
    index 3 port 2 conn 2 dac -1 ddc 0 tmds 0
    index 4 port 2 conn 2 dac 1 ddc 0 tmds -1
    index 7 port 1 conn 2 dac -1 ddc 1 tmds 1
    Starting monitor auto detection...
    i2c_adapter i2c-1: unable to read EDID block.
    i2c_adapter i2c-1: unable to read EDID block.
    i2c_adapter i2c-1: unable to read EDID block.
    radeonfb: I2C (port 1) ... not found
    radeonfb: I2C (port 0) ... found CRT display
    * Connector 1 is DVI-I. Head -1, Monitor: None
    ddc port: 1, dac: -1, tmds: 1
    * Connector 2 is DVI-I. Head 0, Monitor: CRT (EDID probed)
    ddc port: 0, dac: 1, tmds: 0
    hStart = 1048, hEnd = 1184, hTotal = 1344
    vStart = 771, vEnd = 777, vTotal = 806
    h_total_disp = 0x7f00a7 hsync_strt_wid = 0x910422
    v_total_disp = 0x2ff0325 vsync_strt_wid = 0x860302
    pixclock = 15384
    freq = 6500
    freq = 6500, PLL min = 20000, PLL max = 50000
    ref_div = 12, ref_clk = 2700, output_freq = 26000
    ref_div = 12, ref_clk = 2700, output_freq = 26000
    post div = 0x2
    fb_div = 0x74
    ppll_div_3 = 0x20074
    Console: switching to colour frame buffer device 128x48
    radeonfb: Backlight initialized (radeonbl0)
    radeonfb (0000:01:00.0): ATI Radeon ]R
    radeonfb_pci_register END
    hpet_resources: 0xfed00000 is busy
    ACPI Error (utglobal-0128): Unknown exception code: 0xFFFFFFF0 [20070126]
    Hangcheck: starting hangcheck timer 0.9.0 (tick is 180 seconds, margin is 60 seconds).
    Hangcheck: Using get_cycles().
    Serial: 8250/16550 driver $Revision: 1.90 $ 4 ports, IRQ sharing disabled
    serial8250: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
    Floppy drive(s): fd0 is 1.44M
    FDC 0 is a post-1991 82077
    RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
    loop: loaded (max 8 devices)
    netconsole: not configured, aborting
    Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
    ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
    ALI15X3: IDE controller at PCI slot 0000:05:02.1
    ACPI: PCI Interrupt 0000:05:02.1[A] -> GSI 23 (level, low) -> IRQ 18
    ALI15X3: chipset revision 198
    ALI15X3: 100% native mode on irq 18
    ide0: BM-DMA at 0xc080-0xc087, BIOS settings: hda:DMA, hdb:DMA
    ide1: BM-DMA at 0xc088-0xc08f, BIOS settings: hdc:pio, hdd:pio
    Probing IDE interface ide0...
    Probing IDE interface ide1...
    hdc: Maxtor 6Y120L0, ATA DISK drive
    hdd: QUANTUM FIREBALLlct10 10, ATA DISK drive
    ide1 at 0xc480-0xc487,0xc402 on irq 18
    hdc: max request size: 128KiB
    hdc: 240121728 sectors (122942 MB) w/2048KiB Cache, CHS=65535/16/63, UDMA(133)
    hdc: cache flushes supported
    hdc: hdc1 hdc2 < hdc5 > hdc3
    hdd: max request size: 128KiB
    hdd: 20044080 sectors (10262 MB) w/418KiB Cache, CHS=19885/16/63, UDMA(33)
    hdd: cache flushes not supported
    hdd: hdd1 hdd2
    ahci 0000:00:1f.2: version 2.0
    ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 17
    PCI: Setting latency timer of device 0000:00:1f.2 to 64
    ahci 0000:00:1f.2: AHCI 0001.0100 32 slots 6 ports 3 Gbps 0x3f impl SATA mode
    ahci 0000:00:1f.2: flags: 64bit ncq ilck stag pm led clo pmp pio slum part
    ata1: SATA max UDMA/133 cmd 0xf080c900 ctl 0x00000000 bmdma 0x00000000 irq 219
    ata2: SATA max UDMA/133 cmd 0xf080c980 ctl 0x00000000 bmdma 0x00000000 irq 219
    ata3: SATA max UDMA/133 cmd 0xf080ca00 ctl 0x00000000 bmdma 0x00000000 irq 219
    ata4: SATA max UDMA/133 cmd 0xf080ca80 ctl 0x00000000 bmdma 0x00000000 irq 219
    ata5: SATA max UDMA/133 cmd 0xf080cb00 ctl 0x00000000 bmdma 0x00000000 irq 219
    ata6: SATA max UDMA/133 cmd 0xf080cb80 ctl 0x00000000 bmdma 0x00000000 irq 219
    scsi0 : ahci
    ata1: SATA link up 3.0 Gbps (SStatus 123 SControl 300)
    ata1.00: ATA-7: ST3250820AS, 3.AAE, max UDMA/133
    ata1.00: 488397168 sectors, multi 16: LBA48 NCQ (depth 31/32)
    ata1.00: configured for UDMA/133
    scsi1 : ahci
    ata2: SATA link down (SStatus 0 SControl 300)
    scsi2 : ahci
    ata3: SATA link down (SStatus 0 SControl 300)
    scsi3 : ahci
    ata4: SATA link down (SStatus 0 SControl 300)
    scsi4 : ahci
    ata5: SATA link down (SStatus 0 SControl 300)
    scsi5 : ahci
    ata6: SATA link down (SStatus 0 SControl 300)
    scsi 0:0:0:0: Direct-Access ATA ST3250820AS 3.AA PQ: 0 ANSI: 5
    SCSI device sda: 488397168 512-byte hdwr sectors (250059 MB)
    sda: Write Protect is off
    sda: Mode Sense: 00 3a 00 00
    SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
    SCSI device sda: 488397168 512-byte hdwr sectors (250059 MB)
    sda: Write Protect is off
    sda: Mode Sense: 00 3a 00 00
    SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
    sda: [LDM] sda1 sda2
    sd 0:0:0:0: Attached scsi disk sda
    sd 0:0:0:0: Attached scsi generic sg0 type 0
    PCI: Device 0000:02:00.0 not available because of resource collisions
    ahci: probe of 0000:02:00.0 failed with error -22
    sata_uli 0000:05:02.0: version 1.0
    ACPI: PCI Interrupt 0000:05:02.0[A] -> GSI 23 (level, low) -> IRQ 18
    ata7: SATA max UDMA/133 cmd 0x0001c000 ctl 0x0001bc02 bmdma 0x0001b480 irq 18
    ata8: SATA max UDMA/133 cmd 0x0001b880 ctl 0x0001b802 bmdma 0x0001b488 irq 18
    scsi6 : sata_uli
    ata7: SATA link down (SStatus 0 SControl 310)
    scsi7 : sata_uli
    ata8: SATA link down (SStatus 0 SControl 310)
    PCI: Enabling device 0000:02:00.1 (0000 -> 0001)
    ACPI: PCI Interrupt 0000:02:00.1[B] -> GSI 17 (level, low) -> IRQ 19
    PCI: Setting latency timer of device 0000:02:00.1 to 64
    ata9: PATA max UDMA/100 cmd 0x0001ac00 ctl 0x0001a882 bmdma 0x0001a400 irq 19
    ata10: PATA max UDMA/100 cmd 0x0001a800 ctl 0x0001a482 bmdma 0x0001a408 irq 19
    scsi8 : pata_jmicron
    ata9.00: ATAPI, max UDMA/33
    ata9.01: ATAPI, max UDMA/33
    ata9.00: configured for UDMA/33
    ata9.01: configured for UDMA/33
    scsi9 : pata_jmicron
    ATA: abnormal status 0x7F on port 0x0001a807
    scsi 8:0:0:0: CD-ROM HL-DT-ST DVDRAM GSA-4167B DL13 PQ: 0 ANSI: 5
    sr0: scsi3-mmc drive: 48x/48x writer dvd-ram cd/rw xa/form2 cdda tray
    Uniform CD-ROM driver Revision: 3.20
    sr 8:0:0:0: Attached scsi CD-ROM sr0
    sr 8:0:0:0: Attached scsi generic sg1 type 5
    scsi 8:0:1:0: CD-ROM WAITEC ALADAR/1 B1.5 PQ: 0 ANSI: 5
    sr1: scsi3-mmc drive: 16x/40x writer cd/rw xa/form2 cdda tray
    sr 8:0:1:0: Attached scsi CD-ROM sr1
    sr 8:0:1:0: Attached scsi generic sg2 type 5
    PNP: PS/2 Controller [PNP0303:PS2K,PNP0f03:PS2M] at 0x60,0x64 irq 1,12
    serio: i8042 KBD port at 0x60,0x64 irq 1
    serio: i8042 AUX port at 0x60,0x64 irq 12
    mice: PS/2 mouse device common for all mice
    input: AT Translated Set 2 keyboard as /class/input/input0
    TCP cubic registered
    NET: Registered protocol family 1
    NET: Registered protocol family 17
    Using IPI No-Shortcut mode
    Freeing unused kernel memory: 200k freed
    Write protecting the kernel read-only data: 767k
    Time: tsc clocksource has been installed.
    Switched to high resolution mode on CPU 0
    Switched to high resolution mode on CPU 1
    SGI XFS with ACLs, large block numbers, no debug enabled
    ACPI Warning (tbutils-0158): Incorrect checksum in table [OEMB] - 1F, should be 12 [20070126]
    ACPI: SSDT 3FF9E0C0, 01C6 (r1 AMI CPU1PM 1 INTL 20060113)
    Parsing all Control Methods:
    Table [SSDT](id 00EC) - 9 Objects with 0 Devices 3 Methods 0 Regions
    ACPI: SSDT 3FF9E290, 013A (r1 AMI CPU2PM 1 INTL 20060113)
    Parsing all Control Methods:
    Table [SSDT](id 00EF) - 7 Objects with 0 Devices 4 Methods 0 Regions
    ACPI Exception (processor_core-0783): AE_NOT_FOUND, Processor Device is not present [20070126]
    ACPI Exception (processor_core-0783): AE_NOT_FOUND, Processor Device is not present [20070126]
    input: ImPS/2 Generic Wheel Mouse as /class/input/input1
    device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
    kjournald starting. Commit interval 5 seconds
    EXT3-fs: mounted filesystem with journal data mode.
    Linux agpgart interface v0.102 (c) Dave Jones
    agpgart: Detected an Intel 965G Chipset.
    agpgart: AGP aperture is 256M @ 0x0
    PCI: Enabling device 0000:00:1f.3 (0001 -> 0003)
    ACPI: PCI Interrupt 0000:00:1f.3[C] -> GSI 18 (level, low) -> IRQ 20
    parport: PnPBIOS parport detected.
    parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
    usbcore: registered new interface driver usbfs
    usbcore: registered new interface driver hub
    usbcore: registered new device driver usb
    Attansic L1 Ethernet Network Driver - version 2.0.7
    Copyright(c) 2005-2006 Attansic Corporation.
    ACPI: PCI Interrupt 0000:03:00.0[A] -> GSI 19 (level, low) -> IRQ 17
    PCI: Setting latency timer of device 0000:03:00.0 to 64
    e100: Intel(R) PRO/100 Network Driver, 3.5.17-k2-NAPI
    e100: Copyright(c) 1999-2006 Intel Corporation
    USB Universal Host Controller Interface driver v3.0
    ACPI: PCI Interrupt 0000:00:1a.0[A] -> <6>ACPI: PCI Interrupt 0000:05:01.0[A] -> GSI 22 (level, low) -> IRQ 21
    GSI 16 (level, low) -> IRQ 16
    PCI: Setting latency timer of device 0000:00:1a.0 to 64
    uhci_hcd 0000:00:1a.0: UHCI Host Controller
    uhci_hcd 0000:00:1a.0: new USB bus registered, assigned bus number 1
    uhci_hcd 0000:00:1a.0: irq 16, io base 0x0000e000
    usb usb1: configuration #1 chosen from 1 choice
    hub 1-0:1.0: USB hub found
    e100: eth1: e100_probe: addr 0xdfeff000, irq 21, MAC addr 00:50:8B:5C:21:8B
    hub 1-0:1.0: 2 ports detected
    ACPI: PCI Interrupt 0000:00:1a.1[B] -> GSI 17 (level, low) -> IRQ 19
    PCI: Setting latency timer of device 0000:00:1a.1 to 64
    uhci_hcd 0000:00:1a.1: UHCI Host Controller
    uhci_hcd 0000:00:1a.1: new USB bus registered, assigned bus number 2
    uhci_hcd 0000:00:1a.1: irq 19, io base 0x0000e080
    usb usb2: configuration #1 chosen from 1 choice
    hub 2-0:1.0: USB hub found
    hub 2-0:1.0: 2 ports detected
    ACPI: PCI Interrupt 0000:00:1d.0[A] -> GSI 23 (level, low) -> IRQ 18
    PCI: Setting latency timer of device 0000:00:1d.0 to 64
    uhci_hcd 0000:00:1d.0: UHCI Host Controller
    uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 3
    uhci_hcd 0000:00:1d.0: irq 18, io base 0x0000d800
    usb usb3: configuration #1 chosen from 1 choice
    hub 3-0:1.0: USB hub found
    hub 3-0:1.0: 2 ports detected
    ACPI: PCI Interrupt 0000:00:1d.1[B] -> GSI 19 (level, low) -> IRQ 17
    PCI: Setting latency timer of device 0000:00:1d.1 to 64
    uhci_hcd 0000:00:1d.1: UHCI Host Controller
    uhci_hcd 0000:00:1d.1: new USB bus registered, assigned bus number 4
    uhci_hcd 0000:00:1d.1: irq 17, io base 0x0000d880
    usb usb4: configuration #1 chosen from 1 choice
    hub 4-0:1.0: USB hub found
    hub 4-0:1.0: 2 ports detected
    ACPI: PCI Interrupt 0000:00:1d.2[C] -> GSI 18 (level, low) -> IRQ 20
    PCI: Setting latency timer of device 0000:00:1d.2 to 64
    uhci_hcd 0000:00:1d.2: UHCI Host Controller
    uhci_hcd 0000:00:1d.2: new USB bus registered, assigned bus number 5
    uhci_hcd 0000:00:1d.2: irq 20, io base 0x0000dc00
    usb usb5: configuration #1 chosen from 1 choice
    hub 5-0:1.0: USB hub found
    hub 5-0:1.0: 2 ports detected
    ACPI: PCI Interrupt 0000:00:1a.7[C] -> GSI 18 (level, low) -> IRQ 20
    PCI: Setting latency timer of device 0000:00:1a.7 to 64
    ehci_hcd 0000:00:1a.7: EHCI Host Controller
    ehci_hcd 0000:00:1a.7: new USB bus registered, assigned bus number 6
    ehci_hcd 0000:00:1a.7: debug port 1
    PCI: cache line size of 32 is not supported by device 0000:00:1a.7
    ehci_hcd 0000:00:1a.7: irq 20, io mem 0xffaff400
    ehci_hcd 0000:00:1a.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
    usb usb6: configuration #1 chosen from 1 choice
    hub 6-0:1.0: USB hub found
    hub 6-0:1.0: 4 ports detected
    ACPI: PCI Interrupt 0000:00:1b.0[A] -> GSI 22 (level, low) -> IRQ 21
    PCI: Setting latency timer of device 0000:00:1b.0 to 64
    hda_codec: Unknown model for AD1988, trying auto-probe from BIOS...
    ACPI: PCI Interrupt 0000:00:1d.7[A] -> GSI 23 (level, low) -> IRQ 18
    PCI: Setting latency timer of device 0000:00:1d.7 to 64
    ehci_hcd 0000:00:1d.7: EHCI Host Controller
    ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 7
    ehci_hcd 0000:00:1d.7: debug port 1
    PCI: cache line size of 32 is not supported by device 0000:00:1d.7
    ehci_hcd 0000:00:1d.7: irq 18, io mem 0xffaff000
    ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
    usb usb7: configuration #1 chosen from 1 choice
    hub 7-0:1.0: USB hub found
    hub 7-0:1.0: 6 ports detected
    ACPI: PCI Interrupt 0000:05:03.0[A] -> GSI 21 (level, low) -> IRQ 22
    ohci1394: fw-host0: OHCI-1394 1.0 (PCI): IRQ=[22] MMIO=[ff7ef800-ff7effff] Max Packet=[2048] IR/IT contexts=[4/8]
    Adding 787176k swap on /dev/hdd2. Priority:9 extents:1 across:787176k
    EXT3 FS on dm-0, internal journal
    ieee1394: Host added: ID:BUS[0-00:1023] GUID[0011d80000e56e6e]
    NET: Registered protocol family 10
    processor_perflib-0563 [00] processor_get_psd : Invalid _PSD data
    processor_perflib-0563 [00] processor_get_psd : Invalid _PSD data
    Installing knfsd (copyright (C) 1996 okir@monad.swb.de).
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on dm-2, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on dm-3, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    kjournald starting. Commit interval 5 seconds
    EXT3 FS on dm-1, internal journal
    EXT3-fs: mounted filesystem with ordered data mode.
    e100: eth0: e100_watchdog: link up, 100Mbps, full-duplex
    CBQ: class 00010001 has bad quantum==0, repaired.
    u32 classifier
    input device check on
    Actions configured
    input: Power Button (FF) as /class/input/input2
    ACPI: Power Button (FF) [PWRF]
    input: Power Button (CM) as /class/input/input3
    ACPI: Power Button (CM) [PWRB]
    fuse init (API version 7.8)
    [drm] Initialized drm 1.1.0 20060810
    [drm] Initialized radeon 1.25.0 20060524 on minor 0
    [drm] Setting GART location based on new memory map
    [drm] Loading R300 Microcode
    [drm] writeback test succeeded in 1 usecs


    Luca
    --
    "La vita potrebbe non avere alcun significato. Oppure, ancora peggio,
    potrebbe averne uno che disapprovo". -- Ashleigh Brilliant
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