Message-ID: <20070902223715.GA27782@dreamland.darkstar.lan>
Date:	Mon, 3 Sep 2007 00:37:15 +0200
From:	Luca Tettamanti <kronos.it@...il.com>
To:	linux-ide@...r.kernel.org
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>, linux-kernel@...r.kernel.org,
	linux-acpi@...r.kernel.org
Subject: Re: [BUG] pata_ali not working on a 64 bit system

Il Fri, Jul 06, 2007 at 10:01:36PM +0200, Luca Tettamanti ha scritto: 
> Il Fri, Jul 06, 2007 at 06:44:02PM +0100, Alan Cox ha scritto: 
> > On Fri, 6 Jul 2007 19:36:05 +0200
> > Luca Tettamanti <kronos.it@...il.com> wrote:
> > 
> > > Hello,
> > > I found out that pata_ali is not working with a 64 bit kernel, while a
> > > 32 bit kernel on the same machine works fine. I'm running a very recent
> > > kernel (872aad45, somewhere after 2.6.22-rc7).

I found out that 2.6.21 works fine. I'll start bisecting unless someone
has some clue about this issue.

I'm quoting the rest of my mail for reference:

> > > The problem is that as soon as the module is loaded I get a screaming
> > > interrupt:
> > 
> > Can you report this with a full dmesg to the ACPI maintainers as that is
> > where the IRQ routing is presumably coming from.
> 
> Ok, adding linux-acpi to CC.
> 
> > Are you using ACPI on both cases ?
> 
> By default it's enabled, but I've also tried with pci=noacpi without
> success. That's why I reported the issue on linux-ide ;)
> 
> To recap, with ACPI enabled:
> 
> 32bit: pata_ali gets IRQ 19, works
> 64bit: pata_ali gets IRQ 23, doesn't work, screaming interrupt

64bit 2.6.21 also gets IRQ 23, but no screaming interrupt.

> 
> With pci=noacpi:
> 
> 32bit: pata_ali gets IRQ 23, works
> 64bit: pata_ali gets IRQ 23, doesn't work, screaming interrupt
> 
> (as a side note: in this case pata_jmicron stops working...)
> 
> When ACPI is enabled IRQ mapping differs between 32 and 64 bit:
> 
> -ACPI: PCI Interrupt 0000:05:02.1[A] -> GSI 23 (level, low) -> IRQ 19
> +ACPI: PCI Interrupt 0000:05:02.1[A] -> GSI 23 (level, low) -> IRQ 23
> 
> while with pci=noacpi the IRQ mapping for both 32 and 64 bit is the
> following:
> 
> PCI: Probing PCI hardware
> PCI quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
> PCI quirk: region 0480-04bf claimed by ICH6 GPIO
> PCI: Firmware left 0000:05:01.0 e100 interrupts enabled, disabling
> PCI: Transparent bridge - 0000:00:1e.0
> PCI: Using IRQ router PIIX/ICH [8086/2810] at 0000:00:1f.0
> PCI->APIC IRQ transform: 0000:00:01.0[A] -> IRQ 16
> PCI->APIC IRQ transform: 0000:00:1a.0[A] -> IRQ 16
> PCI->APIC IRQ transform: 0000:00:1a.1[B] -> IRQ 17
> PCI->APIC IRQ transform: 0000:00:1a.7[C] -> IRQ 18
> PCI->APIC IRQ transform: 0000:00:1b.0[A] -> IRQ 22
> PCI->APIC IRQ transform: 0000:00:1c.0[A] -> IRQ 16
> PCI->APIC IRQ transform: 0000:00:1c.3[D] -> IRQ 19
> PCI->APIC IRQ transform: 0000:00:1c.4[A] -> IRQ 16
> PCI->APIC IRQ transform: 0000:00:1d.0[A] -> IRQ 23
> PCI->APIC IRQ transform: 0000:00:1d.1[B] -> IRQ 19
> PCI->APIC IRQ transform: 0000:00:1d.2[C] -> IRQ 18
> PCI->APIC IRQ transform: 0000:00:1d.7[A] -> IRQ 23
> PCI->APIC IRQ transform: 0000:00:1f.2[B] -> IRQ 19
> PCI->APIC IRQ transform: 0000:00:1f.3[C] -> IRQ 18
> PCI->APIC IRQ transform: 0000:01:00.0[A] -> IRQ 16
> PCI->APIC IRQ transform: 0000:03:00.0[A] -> IRQ 19
> PCI->APIC IRQ transform: 0000:02:00.0[A] -> IRQ 16
> PCI->APIC IRQ transform: 0000:02:00.1[B] -> IRQ 16
> PCI->APIC IRQ transform: 0000:05:01.0[A] -> IRQ 22
> PCI->APIC IRQ transform: 0000:05:02.0[A] -> IRQ 23
> PCI->APIC IRQ transform: 0000:05:02.1[A] -> IRQ 23
> PCI->APIC IRQ transform: 0000:05:03.0[A] -> IRQ 21
> 
> For reference the dmesg for 64 kernel with ACPI enabled is the
> following:
> 
> Linux version 2.6.22-rc7-64-g872aad45-dirty (kronos@...amland.darkstar.lan) (gcc version 4.1.2 20061115 (prerelease) (Debian 4.1.1-21)) #14 SMP PREEMPT Tue Jul 3 21:18:19 CEST 2007
> Command line: BOOT_IMAGE=linux-2.6.22-64 ro video=radeonfb:1024x768-8@60 lapic apic=verbose root=/dev/mapper/mainVol-root console=tty0 console=ttyS0,57600n8 break=modules
> BIOS-provided physical RAM map:
>  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)
> end_pfn_map = 1048576
> 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)
> Zone PFN ranges:
>   DMA             0 ->     4096
>   DMA32        4096 ->  1048576
>   Normal    1048576 ->  1048576
> early_node_map[2] active PFN ranges
>     0:        0 ->      156
>     0:      256 ->   262032
> ACPI: PM-Timer IO Port: 0x808
> ACPI: LAPIC (acpi_id[0x01] lapic_id[0x00] enabled)
> Processor #0 (Bootup-CPU)
> ACPI: LAPIC (acpi_id[0x02] lapic_id[0x01] enabled)
> Processor #1
> 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, 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)
> Setting APIC routing to flat
> ACPI: HPET id: 0x8086a202 base: 0xfed00000
> Using ACPI (MADT) for SMP configuration information
> mapped APIC to ffffffffff5fd000 (        fee00000)
> mapped IOAPIC to ffffffffff5fc000 (00000000fec00000)
> swsusp: Registered nosave memory region: 000000000009c000 - 000000000009d000
> swsusp: Registered nosave memory region: 000000000009d000 - 00000000000a0000
> swsusp: Registered nosave memory region: 00000000000a0000 - 00000000000e4000
> swsusp: Registered nosave memory region: 00000000000e4000 - 0000000000100000
> Allocating PCI resources starting at 50000000 (gap: 40000000:bee00000)
> SMP: Allowing 2 CPUs, 0 hotplug CPUs
> PERCPU: Allocating 33416 bytes of per cpu data
> Built 1 zonelists.  Total pages: 255507
> Kernel command line: BOOT_IMAGE=linux-2.6.22-64 ro video=radeonfb:1024x768-8@60 lapic apic=verbose root=/dev/mapper/mainVol-root console=tty0 console=ttyS0,57600n8 break=modules
> Initializing CPU#0
> PID hash table entries: 4096 (order: 12, 32768 bytes)
> Extended CMOS year: 2000
> time.c: Detected 2135.038 MHz processor.
> 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: 1648 kB
>  per task-struct memory footprint: 1680 bytes
> ------------------------
> | Locking API testsuite:
> ----------------------------------------------------------------------------
> [...]
> -------------------------------------------------------
> Good, all 218 testcases passed! |
> ---------------------------------
> Dentry cache hash table entries: 131072 (order: 8, 1048576 bytes)
> Inode-cache hash table entries: 65536 (order: 7, 524288 bytes)
> Checking aperture...
> Memory: 1019908k/1048128k available (2296k kernel code, 27692k reserved, 1408k data, 220k init)
> Calibrating delay using timer specific routine.. 4273.82 BogoMIPS (lpj=8547655)
> Mount-cache hash table entries: 256
> CPU: L1 I cache: 32K, L1 D cache: 32K
> CPU: L2 cache: 2048K
> using mwait in idle threads.
> CPU: Physical Processor ID: 0
> CPU: Processor Core ID: 0
> CPU0: Thermal monitoring enabled (TM2)
> 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
> enabled ExtINT on CPU#0
> ENABLING IO-APIC IRQs
> , 2-16, 2-17, 2-18, 2-19, 2-20, 2-21, 2-22, 2-23 not connected.
> ..TIMER: vector=0x30 apic1=0 pin1=2 apic2=-1 pin2=-1
> Using local APIC timer interrupts.
> result 16679977
> Detected 16.679 MHz APIC timer.
> lockdep: not fixing up alternatives.
> Booting processor 1/2 APIC 0x1
> Initializing CPU#1
> masked ExtINT on CPU#1
> Calibrating delay using timer specific routine.. 4270.23 BogoMIPS (lpj=8540475)
> CPU: L1 I cache: 32K, L1 D cache: 32K
> CPU: L2 cache: 2048K
> CPU: Physical Processor ID: 0
> CPU: Processor Core ID: 1
> CPU1: Thermal monitoring enabled (TM2)
> Intel(R) Core(TM)2 CPU          6400  @ 2.13GHz stepping 06
> checking TSC synchronization [CPU#0 -> CPU#1]: passed.
> Brought up 2 CPUs
> migration_cost=26
> 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: Using configuration type 1
> evgpeblk-0952 [04] ev_create_gpe_block   : GPE 00 to 1F [_GPE] 4 regs on int 0x9
> evgpeblk-1048 [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 quirk: region 0800-087f claimed by ICH6 ACPI/GPIO/TCO
> PCI quirk: region 0480-04bf claimed by ICH6 GPIO
> PCI: Firmware left 0000:05:01.0 e100 interrupts enabled, disabling
> PCI: Transparent bridge - 0000:00:1e.0
> 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
> ACPI: bus type pnp registered
> pnp: PnP ACPI: found 17 devices
> ACPI: ACPI bus type pnp unregistered
> SCSI subsystem initialized
> PCI: Using ACPI for IRQ routing
> PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
> testing the IO APIC.......................
> 
> .................................... done.
> PCI-GART: No AMD northbridge found.
> hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
> hpet0: 3 64-bit timers, 14318180 Hz
> ACPI: RTC can wake from S4
> 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 could not be 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 could not be 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 has been 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.
> Time: tsc clocksource has been installed.
>   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
> ACPI: PCI Interrupt 0000:00:1c.0[A] -> GSI 16 (level, low) -> IRQ 16
> ACPI: PCI Interrupt 0000:00:1c.3[D] -> GSI 19 (level, low) -> IRQ 19
> ACPI: PCI Interrupt 0000:00:1c.4[A] -> GSI 16 (level, low) -> IRQ 16
> NET: Registered protocol family 2
> IP route cache hash table entries: 32768 (order: 6, 262144 bytes)
> TCP established hash table entries: 65536 (order: 10, 4194304 bytes)
> TCP bind hash table entries: 65536 (order: 9, 3670016 bytes)
> TCP: Hash tables configured (established 65536 bind 65536)
> TCP reno registered
> checking if image is initramfs... it is
> Freeing initrd memory: 2980k freed
> Total HugeTLB memory allocated, 0
> io scheduler noop registered
> io scheduler anticipatory registered
> io scheduler deadline registered
> io scheduler cfq registered (default)
> assign_interrupt_mode Found MSI capability
> assign_interrupt_mode Found MSI capability
> assign_interrupt_mode Found MSI capability
> assign_interrupt_mode Found MSI capability
> 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 (0000:01:00.0): ATI Radeon ]R 
> radeonfb_pci_register END
> ACPI Error (utglobal-0126): Unknown exception code: 0xFFFFFFF0 [20070126]
> Linux agpgart interface v0.102 (c) Dave Jones
> 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
> 00:06: ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
> parport_pc 00:0b: reported by Plug and Play ACPI
> parport0: PC-style at 0x378 (0x778), irq 7, dma 3 [PCSPP,TRISTATE,COMPAT,EPP,ECP,DMA]
> 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: module loaded
> netconsole: not configured, aborting
> ACPI: PCI Interrupt 0000:00:1f.2[B] -> GSI 19 (level, low) -> IRQ 19
> 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 
> scsi0 : ahci
> scsi1 : ahci
> scsi2 : ahci
> scsi3 : ahci
> scsi4 : ahci
> scsi5 : ahci
> ata1: SATA max UDMA/133 cmd 0xffffc20000016900 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 315
> ata2: SATA max UDMA/133 cmd 0xffffc20000016980 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 315
> ata3: SATA max UDMA/133 cmd 0xffffc20000016a00 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 315
> ata4: SATA max UDMA/133 cmd 0xffffc20000016a80 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 315
> ata5: SATA max UDMA/133 cmd 0xffffc20000016b00 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 315
> ata6: SATA max UDMA/133 cmd 0xffffc20000016b80 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 315
> 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
> ata2: SATA link down (SStatus 0 SControl 300)
> ata3: SATA link down (SStatus 0 SControl 300)
> ata4: SATA link down (SStatus 0 SControl 300)
> ata5: SATA link down (SStatus 0 SControl 300)
> ata6: SATA link down (SStatus 0 SControl 300)
> scsi 0:0:0:0: Direct-Access     ATA      ST3250820AS      3.AA PQ: 0 ANSI: 5
> sd 0:0:0:0: [sda] 488397168 512-byte hardware sectors (250059 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
> sd 0:0:0:0: [sda] 488397168 512-byte hardware sectors (250059 MB)
> sd 0:0:0:0: [sda] Write Protect is off
> sd 0:0:0:0: [sda] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
>  sda: sda1
> sd 0:0:0:0: [sda] Attached SCSI disk
> sd 0:0:0:0: Attached scsi generic sg0 type 0
> ACPI: PCI Interrupt 0000:02:00.0[A] -> GSI 16 (level, low) -> IRQ 16
> ahci 0000:02:00.0: AHCI 0001.0000 32 slots 2 ports 3 Gbps 0x3 impl SATA mode
> ahci 0000:02:00.0: flags: 64bit ncq pm led clo pmp pio slum part 
> scsi6 : ahci
> scsi7 : ahci
> ata7: SATA max UDMA/133 cmd 0xffffc20000018100 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 16
> ata8: SATA max UDMA/133 cmd 0xffffc20000018180 ctl 0x0000000000000000 bmdma 0x0000000000000000 irq 16
> ata7: SATA link down (SStatus 0 SControl 300)
> ata8: SATA link down (SStatus 0 SControl 300)
> PCI: Enabling device 0000:02:00.1 (0000 -> 0001)
> ACPI: PCI Interrupt 0000:02:00.1[B] -> GSI 17 (level, low) -> IRQ 17
> scsi8 : pata_jmicron
> scsi9 : pata_jmicron
> ata9: PATA max UDMA/100 cmd 0x000000000001ac00 ctl 0x000000000001a882 bmdma 0x000000000001a400 irq 17
> ata10: PATA max UDMA/100 cmd 0x000000000001a800 ctl 0x000000000001a482 bmdma 0x000000000001a408 irq 17
> ata9.00: ATAPI: HL-DT-ST DVDRAM GSA-4167B, DL13, max UDMA/33
> ata9.01: ATAPI: WAITEC  ALADAR/1, 0.010000, max UDMA/33
> ata9.00: configured for UDMA/33
> ata9.01: configured for UDMA/33
> scsi 8:0:0:0: CD-ROM            HL-DT-ST DVDRAM GSA-4167B DL13 PQ: 0 ANSI: 5
> sr0: scsi3-mmc drive: 40x/40x writer dvd-ram cd/rw xa/form2 cdda tray
> Uniform CD-ROM driver Revision: 3.20
> 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 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
> Freeing unused kernel memory: 220k freed
> Write protecting the kernel read-only data: 1156k
> Loading, please wait...
> WARNING: Not loading blacklisted module radeonfb
> Spawning shell within the initramfs
> 
> 
> BusyBox v1.01 (Debian 1:1.01-4) Built-in shell (ash)
> Enter 'help' for a list of built-in commands.
> 
> /bin/sh: can't access tty; job control turned off
> input: ImPS/2 Generic Wheel Mouse as /class/input/input1
> (initramfs) cat /proc/interrupts
>            CPU0       CPU1       
>   0:       5142          0   IO-APIC-edge      timer
>   1:          8          0   IO-APIC-edge      i8042
>   4:         50          0   IO-APIC-edge      serial
>   6:          3          0   IO-APIC-edge      floppy
>   7:          0          0   IO-APIC-edge      parport0
>   9:          0          0   IO-APIC-fasteoi   acpi
>  12:        113          0   IO-APIC-edge      i8042
>  16:          0          0   IO-APIC-fasteoi   ahci
>  17:         15          0   IO-APIC-fasteoi   libata
> 315:          6          0   PCI-MSI-edge      ahci
> NMI:          0          0 
> LOC:       5065       4243 
> ERR:          0
> (initramfs) modprobe pata_ali
> ACPI: PCI Interrupt 0000:05:02.1[A] -> GSI 23 (level, low) -> IRQ 23
> scsi10 : pata_ali
> scsi11 : pata_ali
> ata11: PATA max UDMA/133 cmd 0x000000000001c880 ctl 0x000000000001c802 bmdma 0x000000000001c080 irq 23
> ata12: PATA max UDMA/133 cmd 0x000000000001c480 ctl 0x000000000001c402 bmdma 0x000000000001c088 irq 23
> irq 23: nobody cared (try booting with the "irqpoll" option)
> 
> Call Trace:
>  <IRQ>  [<ffffffff80258407>] __report_bad_irq+0x30/0x72
>  [<ffffffff80258620>] note_interrupt+0x1d7/0x21b
>  [<ffffffff80258ccf>] handle_fasteoi_irq+0xaf/0xd8
>  [<ffffffff8020c50c>] do_IRQ+0xf4/0x164
>  [<ffffffff80208631>] mwait_idle+0x0/0x51
>  [<ffffffff80209bc6>] ret_from_intr+0x0/0xf
>  <EOI>  [<ffffffff80208631>] mwait_idle+0x0/0x51
>  [<ffffffff80208677>] mwait_idle+0x46/0x51
>  [<ffffffff802085b5>] cpu_idle+0x95/0xcc
>  [<ffffffff805bca4e>] start_kernel+0x2d3/0x2df
>  [<ffffffff805bc138>] _sinittext+0x138/0x13c
> 
> handlers:
> [<ffffffff803b6dcf>] (ata_interrupt+0x0/0x204)
> Disabling IRQ #23
> ata12.00: qc timeout (cmd 0xf8)
> ata12.00: ata_hpa_resize 1: hpa sectors (0) is smaller than sectors (240121728)
> ata12.00: ATA-7: Maxtor 6Y120L0, YAR41VW0, max UDMA/133
> ata12.00: 240121728 sectors, multi 16: LBA 
> ata12.01: ata_hpa_resize 1: hpa sectors (0) is smaller than sectors (20044080)
> ata12.01: ATA-4: QUANTUM FIREBALLlct10 10, A03.0900, max UDMA/66
> ata12.01: 20044080 sectors, multi 16: LBA 
> ata12.01: limited to UDMA/33 due to 40-wire cable
> ata12.00: failed to set xfermode (err_mask=0x40)
> ata12: failed to recover some devices, retrying in 5 secs

Luca
-- 
Dicono che  il cane sia  il miglior  amico dell'uomo. Secondo me  non e`
vero. Quanti dei vostri amici avete fatto castrare, recentemente?
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