Difference between revisions of "Linux on Apple TV"

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''rcfa: Could someone please tell what has to be done: assume I have now a compiled loader, and a linux kernel, plus a preconfigured distribution in a tgz file. Where does what go, and will the Media partition be reformatted as ext3 or will it remain HFS+, or...? I don't think I need step-by-step instructions, but I need an idea of what is supposed to be where in the end.''
 
''rcfa: Could someone please tell what has to be done: assume I have now a compiled loader, and a linux kernel, plus a preconfigured distribution in a tgz file. Where does what go, and will the Media partition be reformatted as ext3 or will it remain HFS+, or...? I don't think I need step-by-step instructions, but I need an idea of what is supposed to be where in the end.''
 +
 +
''kad77: Linux does not support writes to journaled HFS (HFS+), my initial thoughts would be to use USB flash memory for the linux loader (includes kernel) and ELF executables. Perhaps the Media partition could be reduced by 5-10 GB so an ext2/3 partition could exist on the HD for scratch space. Some alternatives include: Upgrading the HD; wipe the original the ATV install; use a streaming only linux config; use USB flash for scratch, etc''
  
 
[http://mactel-linux.svn.sourceforge.net/viewvc/mactel-linux/trunk/mach_linux_boot/ The current mac-tel SVN sources are fine for getting everything working.] The Linux side actively requires testing. As you will read below, the results are phenomenal so far.
 
[http://mactel-linux.svn.sourceforge.net/viewvc/mactel-linux/trunk/mach_linux_boot/ The current mac-tel SVN sources are fine for getting everything working.] The Linux side actively requires testing. As you will read below, the results are phenomenal so far.

Revision as of 12:46, 9 April 2007

Current Status

This page is being reworked (old, and confusing data removed) and may be in flux for a few days. Feel free to add to it-- but at certain times it may be locked, and merged with the offline page. Please see page history for some previous data regarding EFI, and previous Linux on Mac projects.

Our overall focus will now be geared towards working with gimli to extend his Linux efforts on the AppleTV.

kad77: An example of this being-- I'm sorting out a modified GeexBox distribution. If someone else wants to create a section on MythTV, that would be great.

Sourceforge SVN access: https://mactel-linux.svn.sourceforge.net/svnroot/mactel-linux/trunk/mach_linux_boot (requires SVN client)

The other code in trunk pertains to other mactel "linux on mac" projects, and is not needed for the AppleTV loader.

A step-by-step guide will be added soon. Relevant info is in SVN. At this point, please be clear that you will need OS X to run Xcode and compile the kernel loader.

The kernel will boot from an HFS+ partition however you will need a linux partition for the root. This will allow us to keep the ATVOS intact by placing the loader on the Media partition.

rcfa: Could someone please tell what has to be done: assume I have now a compiled loader, and a linux kernel, plus a preconfigured distribution in a tgz file. Where does what go, and will the Media partition be reformatted as ext3 or will it remain HFS+, or...? I don't think I need step-by-step instructions, but I need an idea of what is supposed to be where in the end.

kad77: Linux does not support writes to journaled HFS (HFS+), my initial thoughts would be to use USB flash memory for the linux loader (includes kernel) and ELF executables. Perhaps the Media partition could be reduced by 5-10 GB so an ext2/3 partition could exist on the HD for scratch space. Some alternatives include: Upgrading the HD; wipe the original the ATV install; use a streaming only linux config; use USB flash for scratch, etc

The current mac-tel SVN sources are fine for getting everything working. The Linux side actively requires testing. As you will read below, the results are phenomenal so far.

  • A solution for booting any non-Apple EFI executables has not been discovered as of this writing.

A secondary, yet important focus will be providing information to enable alternative non-Apple bootloaders, and methods that do not require MacOS X

AwkwardTV Linux Project

Many of us would like to see a minimal source distribution, targeted for AppleTV and utilizing the Linux kernel, emerge with boot and kernel configs. Extras might include scripts for USB or disk image builds. Currently we will be working with gimli's Mach-O wrapper approach to bootstrapping, and this will require a MacOS X setup. His loader will require MacOS X to compile the Mach-O binary, and MacOS X will be required to manipulate the partitions to load Linux. The latter is due to incomplete HFS+ support as of kernel 2.6.20.

Please discuss your ideas on the #awkwardtv IRC Channel!

It bears mentioning that we recommend a complete backup of your original AppleTV drive before any experimentation. We have a wiki page dedicated to this subject. Remember, if you pipe the dd through gzip or bzip2, the virgin drive image created should only be ~2.5gb!

Hardware Support

Much of the AppleTV's hardware is supported natively under the Linux kernel. In this section, we will be expanding on the Linux driver details.

Intel CPU Core

  • Speedstep functionality - WORKING

GeForce 7300 Go (NV40) Note: framebuffer fixes in SVN as of April 6, 2007 - please recompile

  • Official NVidia binary driver works without modification. Full 3D and framebuffer acceleration.
  • OSS NVidia driver works without modification (also provides acceleration)
(==) NV(0): Write-combining range (0x10000000,0x4000000)
(II) NV(0): Using XFree86 Acceleration Architecture (XAA)
	Screen to screen bit blits
	Solid filled rectangles
	8x8 mono pattern filled rectangles
	Indirect CPU to Screen color expansion
	Solid Lines
	Scanline Image Writes
	Offscreen Pixmaps
	Setting up tile and stipple cache:
	32 128x128 slots
	32 256x256 slots
	16 512x512 slots
  • HDMI - WORKING (DVI tested)
  • Component - not tested

Intel HD Audio

  • HDA-Intel driver recognized by default
  • Analogue RCA - not tested
  • Optical SPDIF - WORKING

irDA interface

  • mactel-linux driver recognizes it - untested otherwise

Broadcom BCM94321MC wireless


USB

  • USB booting works when you disable ehci-hcd in kernel

Our components wiki has further information about the specific chips involved.

Barebones Distro Notes

Our preferred base distrubutions:

There are a few Linux distributions specialized for Media Center usage:

Some useful components:

We would prefer a lightweight X alternative or optimized/minimal X11 build. Note: KDrive is framebuffer only.

Geek Notes

April 5, 2007 dmseg output: (source)

[    0.000000] Linux version 2.6.20.4-mactel (root@athlonx2) (gcc version 4.1.2 20060928 (prerelease) (Ubuntu 4.1.1-13ubuntu5)) #59 Wed Apr 4 23:02:10 UTC 2007
[    0.000000] EFI: EFI v1.10 by Apple 
[    0.000000]  ACPI=0xfefd000 <6> ACPI 2.0=0xfefd014 <6> SMBIOS=0xfebe000 
[    0.000000] 0MB HIGHMEM available.
[    0.000000] 255MB LOWMEM available.
[    0.000000] Entering add_active_range(0, 0, 65280) 0 entries of 256 used
[    0.000000] Zone PFN ranges:
[    0.000000]   DMA             0 ->     4096
[    0.000000]   Normal       4096 ->    65280
[    0.000000]   HighMem     65280 ->    65280
[    0.000000] early_node_map[1] active PFN ranges
[    0.000000]     0:        0 ->    65280
[    0.000000] On node 0 totalpages: 65280
[    0.000000]   DMA zone: 32 pages used for memmap
[    0.000000]   DMA zone: 0 pages reserved
[    0.000000]   DMA zone: 4064 pages, LIFO batch:0
[    0.000000]   Normal zone: 478 pages used for memmap
[    0.000000]   Normal zone: 60706 pages, LIFO batch:15
[    0.000000]   HighMem zone: 0 pages used for memmap
[    0.000000] DMI 2.4 present.
[    0.000000] ACPI: RSDP (v002 APPLE                                 ) @ 0x0fefd014
[    0.000000] ACPI: XSDT (v001 APPLE   Apple00 0x000000d9      0x01000013) @ 0x0fefd1c0
[    0.000000] ACPI: FADT (v003 APPLE   Apple00 0x000000d9 Loki 0x0000005f) @ 0x0fefb000
[    0.000000] ACPI: HPET (v001 APPLE   Apple00 0x00000001 Loki 0x0000005f) @ 0x0fefa000
[    0.000000] ACPI: MADT (v001 APPLE   Apple00 0x00000001 Loki 0x0000005f) @ 0x0fef9000
[    0.000000] ACPI: MCFG (v001 APPLE   Apple00 0x00000001 Loki 0x0000005f) @ 0x0fef8000
[    0.000000] ACPI: ASF! (v032 APPLE   Apple00 0x00000001 Loki 0x0000005f) @ 0x0fef7000
[    0.000000] ACPI: SSDT (v001 APPLE   Cpu0Ist 0x00003000 INTL 0x20050309) @ 0x0fef2000
[    0.000000] ACPI: SSDT (v001 APPLE   Cpu0Cst 0x00003001 INTL 0x20050309) @ 0x0fef3000
[    0.000000] ACPI: SSDT (v001 APPLE     CpuPm 0x00003000 INTL 0x20050309) @ 0x0fef1000
[    0.000000] ACPI: DSDT (v001 APPLE   AppleTV 0x00010001 INTL 0x20050309) @ 0x00000000
[    0.000000] ACPI: PM-Timer IO Port: 0x408
[    0.000000] ACPI: HPET id: 0x8086a201 base: 0xfed00000
[    0.000000] Allocating PCI resources starting at 10100000 (gap: 10000000:00400000)
[    0.000000] Detected 1000.158 MHz processor.
[   38.674978] Built 1 zonelists.  Total pages: 64770
[   38.674983] Kernel command line: root=/dev/sda3 video=imacfb
[   38.675255] Enabling fast FPU save and restore... done.
[   38.675259] Enabling unmasked SIMD FPU exception support... done.
[   38.675271] Initializing CPU#0
[   38.675341] PID hash table entries: 1024 (order: 10, 4096 bytes)
[   38.675397] Console: colour dummy device 80x25
[   38.675570] Dentry cache hash table entries: 32768 (order: 5, 131072 bytes)
[   38.675741] Inode-cache hash table entries: 16384 (order: 4, 65536 bytes)
[   38.688631] Memory: 253128k/261120k available (1836k kernel code, 5260k reserved, 694k data, 180k init, 0k highmem)
[   38.688658] virtual kernel memory layout:
[   38.688660]     fixmap  : 0xfffeb000 - 0xfffff000   (  80 kB)
[   38.688662]     pkmap   : 0xff800000 - 0xffc00000   (4096 kB)
[   38.688665]     vmalloc : 0xd0800000 - 0xff7fe000   ( 751 MB)
[   38.688667]     lowmem  : 0xc0000000 - 0xcff00000   ( 255 MB)
[   38.688669]       .init : 0xc037c000 - 0xc03a9000   ( 180 kB)
[   38.688671]       .data : 0xc02cb0a1 - 0xc037894c   ( 694 kB)
[   38.688674]       .text : 0xc0100000 - 0xc02cb0a1   (1836 kB)
[   38.688700] Checking if this processor honours the WP bit even in supervisor mode... Ok.
[   38.688906] Oops: efitime: can't read time status: 0x80000007
[   38.688936] hpet0: at MMIO 0xfed00000, IRQs 2, 8, 0
[   38.688946] hpet0: 3 64-bit timers, 14318180 Hz
[   38.689956] Using HPET for base-timer
[   38.772185] Calibrating delay using timer specific routine.. 2002.15 BogoMIPS (lpj=3336254)
[   38.772213] EFI: ioremap of 0xB178000 failed
[   38.772218] EFI: ioremap of 0xB19D000 failed
[   38.772224] EFI: ioremap of 0xB1C8000 failed
[   38.772262] Mount-cache hash table entries: 512
[   38.772403] CPU: After generic identify, caps: afe9fbff 00100000 00000000 00000000 00000180 00000000 00000000
[   38.772420] CPU: L1 I cache: 32K, L1 D cache: 32K
[   38.772429] CPU: L2 cache: 2048K
[   38.772435] CPU: After all inits, caps: afe9fbff 00100000 00000000 00002040 00000180 00000000 00000000
[   38.772448] Compat vDSO mapped to ffffe000.
[   38.772463] CPU: Intel Genuine Intel(R) processor              1.00GHz stepping 08
[   38.772477] Checking 'hlt' instruction... OK.
[   38.785576] ACPI: Core revision 20060707
[   38.787890] ACPI: setting ELCR to 0200 (from 0000)
[   38.788479] NET: Registered protocol family 16
[   38.788580] ACPI: bus type pci registered
[   38.788595] PCI: BIOS Bug: MCFG area at f0000000 is not E820-reserved
[   38.788602] PCI: Not using MMCONFIG.
[   38.788877] PCI: Using configuration type 1
[   38.788883] Setting up standard PCI resources
[   38.788904] EFI: Failed to allocate res Runtime Service Code : 0xb178000-0xb19cfff
[   38.788914] EFI: Failed to allocate res Runtime Service Data : 0xb19d000-0xb1c7fff
[   38.788923] EFI: Failed to allocate res Runtime Service Data : 0xb1c8000-0xb1c8fff
[   38.791825] ACPI: Interpreter enabled
[   38.791833] ACPI: Using PIC for interrupt routing
[   38.792427] ACPI: PCI Root Bridge [PCI0] (0000:00)
[   38.792439] PCI: Probing PCI hardware (bus 00)
[   38.793832] PCI quirk: region 0400-047f claimed by ICH6 ACPI/GPIO/TCO
[   38.793842] PCI quirk: region 0500-053f claimed by ICH6 GPIO
[   38.794523] PCI: Transparent bridge - 0000:00:1e.0
[   38.794592] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
[   38.798978] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.RP01._PRT]
[   38.799918] ACPI: PCI Interrupt Routing Table [\_SB_.PCI0.PCIB._PRT]
[   38.801431] ACPI: PCI Interrupt Link [LNKA] (IRQs 1 3 4 5 6 7 10 12 14 15) *0, disabled.
[   38.801755] ACPI: PCI Interrupt Link [LNKB] (IRQs 1 3 4 5 6 7 11 12 14 15) *0, disabled.
[   38.802075] ACPI: PCI Interrupt Link [LNKC] (IRQs 1 3 4 5 6 7 10 12 14 15) *0, disabled.
[   38.802424] ACPI: PCI Interrupt Link [LNKD] (IRQs 1 3 4 5 6 7 11 12 14 15) *0, disabled.
[   38.802740] ACPI: PCI Interrupt Link [LNKE] (IRQs 1 3 4 5 6 7 10 12 14 15) *0, disabled.
[   38.803056] ACPI: PCI Interrupt Link [LNKF] (IRQs 1 3 4 5 6 7 11 12 14 15) *0, disabled.
[   38.803379] ACPI: PCI Interrupt Link [LNKG] (IRQs 1 3 4 5 6 7 10 12 14 15) *0, disabled.
[   38.803695] ACPI: PCI Interrupt Link [LNKH] (IRQs 3 4 5 6 7 11 12 14 15) *0, disabled.
[   38.804771] SCSI subsystem initialized
[   38.804805] libata version 2.00 loaded.
[   38.804872] usbcore: registered new interface driver usbfs
[   38.804914] usbcore: registered new interface driver hub
[   38.804960] usbcore: registered new device driver usb
[   38.804992] PCI: Using ACPI for IRQ routing
[   38.804999] PCI: If a device doesn't work, try "pci=routeirq".  If it helps, post a report
[   38.805775] PCI: Failed to allocate mem resource #6:20000@20000000 for 0000:01:00.0
[   38.805786] PCI: Bridge: 0000:00:01.0
[   38.805790]   IO window: disabled.
[   38.805798]   MEM window: 20000000-21ffffff
[   38.805806]   PREFETCH window: 10000000-1fffffff
[   38.805814] PCI: Bridge: 0000:00:1c.0
[   38.805818]   IO window: disabled.
[   38.805828]   MEM window: 22200000-222fffff
[   38.805837]   PREFETCH window: 22000000-220fffff
[   38.805848] PCI: Bridge: 0000:00:1e.0
[   38.805854]   IO window: 1000-1fff
[   38.805864]   MEM window: 22100000-221fffff
[   38.805872]   PREFETCH window: disabled.
[   38.806132] ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 10
[   38.806139] PCI: setting IRQ 10 as level-triggered
[   38.806146] ACPI: PCI Interrupt 0000:00:01.0[A] -> Link [LNKA] -> GSI 10 (level, low) -> IRQ 10
[   38.806161] PCI: Setting latency timer of device 0000:00:01.0 to 64
[   38.806411] ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 11
[   38.806418] PCI: setting IRQ 11 as level-triggered
[   38.806424] ACPI: PCI Interrupt 0000:00:1c.0[A] -> Link [LNKB] -> GSI 11 (level, low) -> IRQ 11
[   38.806439] PCI: Setting latency timer of device 0000:00:1c.0 to 64
[   38.806456] PCI: Setting latency timer of device 0000:00:1e.0 to 64
[   38.806481] NET: Registered protocol family 2
[   38.838832] IP route cache hash table entries: 2048 (order: 1, 8192 bytes)
[   38.838913] TCP established hash table entries: 8192 (order: 3, 32768 bytes)
[   38.838963] TCP bind hash table entries: 4096 (order: 2, 16384 bytes)
[   38.838993] TCP: Hash tables configured (established 8192 bind 4096)
[   38.839000] TCP reno registered
[   38.849183] IA-32 Microcode Update Driver: v1.14a <tigran@aivazian.fsnet.co.uk>
[   38.849343] Total HugeTLB memory allocated, 0
[   38.849407] VFS: Disk quotas dquot_6.5.1
[   38.849431] Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
[   38.849520] io scheduler noop registered
[   38.849527] io scheduler anticipatory registered (default)
[   38.849535] io scheduler deadline registered
[   38.849548] io scheduler cfq registered
[   38.849705] PCI: Setting latency timer of device 0000:00:01.0 to 64
[   38.849745] assign_interrupt_mode Found MSI capability
[   38.849753] Allocate Port Service[0000:00:01.0:pcie00]
[   38.849835] PCI: Setting latency timer of device 0000:00:1c.0 to 64
[   38.849898] assign_interrupt_mode Found MSI capability
[   38.849906] Allocate Port Service[0000:00:1c.0:pcie00]
[   38.849944] Allocate Port Service[0000:00:1c.0:pcie02]
[   38.850185] imacfb: framebuffer at 0x10030000, mapped to 0xd0880000, using 10800k, total 16384k
[   38.850196] imacfb: mode is 1440x900x32, linelength=6144, pages=1
[   38.850202] imacfb: scrolling: redraw
[   38.850209] imacfb: Truecolor: size=8:8:8:8, shift=24:16:8:0
[   38.972031] Console: switching to colour frame buffer device 180x56
[   39.083911] fb0: IMAC VGA frame buffer device
[   39.087092] Real Time Clock Driver v1.12ac
[   39.088295] RAMDISK driver initialized: 16 RAM disks of 4096K size 1024 blocksize
[   39.089517] 8139too Fast Ethernet driver 0.9.28
[   39.090166] PCI: Enabling device 0000:03:03.0 (0000 -> 0003)
[   39.091228] ACPI: PCI Interrupt Link [LNKE] enabled at IRQ 10
[   39.092059] ACPI: PCI Interrupt 0000:03:03.0[A] -> Link [LNKE] -> GSI 10 (level, low) -> IRQ 10
[   39.093322] PCI: Setting latency timer of device 0000:03:03.0 to 64
[   39.094250] eth0: RealTek RTL8139 at 0x1000, 00:17:f2:f8:9e:18, IRQ 10
[   39.095153] eth0:  Identified 8139 chip type 'RTL-8100B/8139D'
[   39.095275] input: Macintosh mouse button emulation as /class/input/input0
[   39.096377] ata_piix 0000:00:1f.1: version 2.00ac7
[   39.096626] ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 10
[   39.097422] ACPI: PCI Interrupt 0000:00:1f.1[A] -> Link [LNKC] -> GSI 10 (level, low) -> IRQ 10
[   39.098708] PCI: Setting latency timer of device 0000:00:1f.1 to 64
[   39.098753] ata1: PATA max UDMA/133 cmd 0x2058 ctl 0x2066 bmdma 0x2040 irq 10
[   39.099766] ata2: PATA max UDMA/133 cmd 0x2050 ctl 0x2062 bmdma 0x2048 irq 10
[   39.100761] scsi0 : ata_piix
[   39.263784] ATA: abnormal status 0x7F on port 0x205F
[   39.268770] ata1.00: ATA-7, max UDMA/33, 78140160 sectors: LBA48 
[   39.269612] ata1.00: ata1: dev 0 multi count 16
[   39.278750] ata1.00: configured for UDMA/33
[   39.279333] scsi1 : ata_piix
[   39.442719] ATA: abnormal status 0x7F on port 0x2057
[   39.443522] scsi 0:0:0:0: Direct-Access     ATA      FUJITSU MHW2040A 0081 PQ: 0 ANSI: 5
[   39.444744] SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
[   39.445668] sda: Write Protect is off
[   39.446176] sda: Mode Sense: 00 3a 00 00
[   39.446194] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   39.447473] SCSI device sda: 78140160 512-byte hdwr sectors (40008 MB)
[   39.448395] sda: Write Protect is off
[   39.482643] sda: Mode Sense: 00 3a 00 00
[   39.482662] SCSI device sda: write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[   39.517768]  sda:<7>spurious 8259A interrupt: IRQ7.
[   39.596810]  sda1 sda2 sda3
[   39.631490] sd 0:0:0:0: Attached scsi disk sda
[   39.665895] sd 0:0:0:0: Attached scsi generic sg0 type 0
[   39.700063] PCI: Enabling device 0000:00:1d.7 (0000 -> 0002)
[   39.734360] ACPI: PCI Interrupt Link [LNKH] enabled at IRQ 11
[   39.768360] ACPI: PCI Interrupt 0000:00:1d.7[A] -> Link [LNKH] -> GSI 11 (level, low) -> IRQ 11
[   39.802728] PCI: Setting latency timer of device 0000:00:1d.7 to 64
[   39.802734] ehci_hcd 0000:00:1d.7: EHCI Host Controller
[   39.836716] ehci_hcd 0000:00:1d.7: new USB bus registered, assigned bus number 1
[   39.871041] ehci_hcd 0000:00:1d.7: debug port 1
[   39.905030] PCI: cache line size of 32 is not supported by device 0000:00:1d.7
[   39.905040] ehci_hcd 0000:00:1d.7: irq 11, io mem 0x22305000
[   39.942735] ehci_hcd 0000:00:1d.7: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004
[   39.976809] usb usb1: configuration #1 chosen from 1 choice
[   40.010966] hub 1-0:1.0: USB hub found
[   40.045016] hub 1-0:1.0: 8 ports detected
[   40.180796] USB Universal Host Controller Interface driver v3.0
[   40.215328] ACPI: PCI Interrupt 0000:00:1d.0[A] -> Link [LNKH] -> GSI 11 (level, low) -> IRQ 11
[   40.251198] PCI: Setting latency timer of device 0000:00:1d.0 to 64
[   40.251204] uhci_hcd 0000:00:1d.0: UHCI Host Controller
[   40.286701] uhci_hcd 0000:00:1d.0: new USB bus registered, assigned bus number 2
[   40.322144] uhci_hcd 0000:00:1d.0: irq 11, io base 0x00002020
[   40.357284] usb usb2: configuration #1 chosen from 1 choice
[   40.392345] hub 2-0:1.0: USB hub found
[   40.427216] hub 2-0:1.0: 2 ports detected
[   40.563730] Initializing USB Mass Storage driver...
[   40.690173] usb 1-1: new high speed USB device using ehci_hcd and address 2
[   41.722416] ehci_hcd 0000:00:1d.7: Unlink after no-IRQ?  Controller is probably using the wrong IRQ.
[   52.287961] usb 1-1: device not accepting address 2, error -110
[   52.427817] usb 1-1: new high speed USB device using ehci_hcd and address 3
[   63.992308] usb 1-1: device not accepting address 3, error -110
[   64.132164] usb 1-1: new high speed USB device using ehci_hcd and address 4
[   74.581162] usb 1-1: device not accepting address 4, error -110
[   74.721019] usb 1-1: new high speed USB device using ehci_hcd and address 5
[   85.170017] usb 1-1: device not accepting address 5, error -110
[   85.722770] usb 2-2: new low speed USB device using uhci_hcd and address 2
[   88.842936] usb 2-2: configuration #1 chosen from 1 choice
[   89.622232] usbcore: registered new interface driver usb-storage
[   89.657373] USB Mass Storage support registered.
[   89.692274] usbcore: registered new interface driver libusual
[   89.727421] usbcore: registered new interface driver hiddev
[   90.997303] input: Apple Computer, Inc. IR Receiver as /class/input/input1
[   91.032387] input: USB HID v1.11 Device [Apple Computer, Inc. IR Receiver] on usb-0000:00:1d.0-2
[   91.068366] usbcore: registered new interface driver usbhid
[   91.104431] drivers/usb/input/hid-core.c: v2.6:USB HID core driver
[   91.141641] i8042.c: No controller found.
[   91.177552] mice: PS/2 mouse device common for all mice
[   91.213411] device-mapper: ioctl: 4.11.0-ioctl (2006-10-12) initialised: dm-devel@redhat.com
[   91.279941] ip_tables: (C) 2000-2006 Netfilter Core Team
[   91.393468] TCP cubic registered
[   91.428955] NET: Registered protocol family 1
[   91.464351] NET: Registered protocol family 17
[   91.498849] Using IPI Shortcut mode
[   91.532685] ACPI: (supports S0 S4)
[   91.566452] Time: tsc clocksource has been installed.
[   91.973360] kjournald starting.  Commit interval 5 seconds
[   92.007750] EXT3-fs: mounted filesystem with ordered data mode.
[   92.042316] VFS: Mounted root (ext3 filesystem) readonly.
[   92.076968] Freeing unused kernel memory: 180k freed
[   98.406036] EXT3 FS on sda3, internal journal
[   99.204712] spurious 8259A interrupt: IRQ15.
[   99.599013] eth0: link up, 100Mbps, full-duplex, lpa 0xC5E1
[  106.074809] uhci_hcd 0000:00:1d.0: Unlink after no-IRQ?  Controller is probably using the wrong IRQ.
[  110.383484] usb 1-1: new high speed USB device using ehci_hcd and address 7
[  121.914675] usb 1-1: device not accepting address 7, error -110
[  122.061191] usb 1-1: new high speed USB device using ehci_hcd and address 8
[  133.592383] usb 1-1: device not accepting address 8, error -110
[  133.738899] usb 1-1: new high speed USB device using ehci_hcd and address 9
[  144.154600] usb 1-1: device not accepting address 9, error -110
[  144.301116] usb 1-1: new high speed USB device using ehci_hcd and address 10
[  154.716815] usb 1-1: device not accepting address 10, error -110