I have been looking on the mailing list to see whether anybody has a problem like mine. The problem still exists in 2.6.8.1, and I am trying to analyze what is going on in my system.

DISCLAIMER: I am just an user, not a kernel or USB expert. My idea of what is going on might be completely wrong.

Having said that, here goes my guess:

From what I can tell, my system has an USB 1.1 controller (uhci-hcd) which fires interrupts at IRQ 5, and an USB 2.0 controller (ehci-hcd) which
reports interrupts at IRQ 10 (see question 1). This situation shows up at /proc/interrupts (IRQ5 is handled by uhci-hcd and via-rhine, and IRQ10 is handled by ehci-hcd *only*). It also shows up with lspci -v: the USB 2.0 reports �PIN D mapped to IRQ 10�, and USB 1.1 reports �PIN A mapped to IRQ 5�.


When I rmmod ehci-hcd, everything goes fine. However, when I modprobe ehci-hcd, /var/log/messages reports that ehci-hcd (USB 2.0) is being
assigned IRQ 10. This, by itself, is not suspicious for me. The problem starts when I plug the memory stick. I believe (remember, I might be terribly
wrong with this guess) that the following sequence of events occurs:


* The device is plugged, and it identifes itself as an USB 2.0-capable device.
* Since ehci-hcd is loaded and the USB 2.0 controller is enabled, the USB IRQ fires.
* The USB IRQ comes out at IRQ 5 (see question 3)
* ehci-hcd is waiting at IRQ 10, so it never gets notified :-(
* via-rhine tries to handle the interrupt. Since the network card does not need servicing, via-rhine ignores the interrupt (which is expected).
* uhci-hcd tries to handle the interrupt. Somehow it decides that it does not have to service the interrupt (maybe because it is a USB 2.0 that needs
servicing, but uhci-hcd by itself only handles USB 1.1), and therefore ignores the interrupt.
* nobody handled IRQ 5, so the kernel prints the �nobody cared!� message, and then disables IRQ 5
* no USB device works until the machine is rebooted


Some questions I have about this situation:

Q1: Is it normal or expected for a system with a USB 2.0 controller to have different IRQs for USB 1.1 (IRQ 5) and USB 2.0 (IRQ 10)?
Q2: Is the Linux USB subsystem prepared to handle a (sane) system as described in Q1? (Really, I don�t know)
Q3: Is it normal, or at least expected, for a USB 2.0 controller to fire an interrupt through the USB 1.1 IRQ (which is a different IRQ from USB 2.0,
as described in Q1)?


Well, I thought, if the USB 2.0 interrupt fires at IRQ 5, then I should force ehci-hcd to monitor IRQ 5 instead of IRQ 10. I tried setpci INTERRUPT_LINE for this, but it does not work - modprobe ehci-hcd still assigns IRQ 10 to ehci-hcd. I also tried echo 05 > irq at the pciXXXXXX
directories in sysfs, and it hangs (maybe it is chmod 444 for a reason - I assigned chmod 777 before running echo).


Any response (even a correction to my guesses) will be greatly appreciated.
Alex Villacis Lasso


The original message follows:
I regularly use a usb-stick on my home computer (RedHat 9). Up to kernel 2.6.6, it worked correctly, but
now the following appears on dmesg when inserting the usb stick, and the device is not recognized:


hub 1-0:1.0: port 1, status 0501, change 0001, 480 Mb/s
hub 1-0:1.0: debounce: port 1: delay 100ms stable 4 status 0x501
hub 1-0:1.0: port 1 not reset yet, waiting 50ms
ehci_hcd 0000:00:10.3: port 1 full speed --> companion
ehci_hcd 0000:00:10.3: GetStatus port 1 status 003801 POWER OWNER sig=j CONNECT
uhci_hcd 0000:00:10.0: port 1 portsc 0093
hub 2-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
uhci_hcd 0000:00:10.0: wakeup_hc
hub 2-0:1.0: debounce: port 1: delay 100ms stable 4 status 0x101
usb 2-1: new full speed USB device using address 2
irq 5: nobody cared!
[<c010726a>] __report_bad_irq+0x2a/0x8b
[<c0107354>] note_interrupt+0x6f/0x9f
[<c0107622>] do_IRQ+0x131/0x140
[<c010301e>] default_idle+0x0/0x27
[<c0105998>] common_interrupt+0x18/0x20
[<c010301e>] default_idle+0x0/0x27
[<c0103042>] default_idle+0x24/0x27
[<c01030a9>] cpu_idle+0x2e/0x37
[<c03865d2>] start_kernel+0x15b/0x175
[<c0386321>] unknown_bootoption+0x0/0x129


handlers:
[<de8372fb>] (usb_hcd_irq+0x0/0x67 [usbcore])
[<de8372fb>] (usb_hcd_irq+0x0/0x67 [usbcore])
[<de8c955e>] (rhine_interrupt+0x0/0x1db [via_rhine])
Disabling IRQ #5
usb 2-1: control timeout on ep0in
usb 2-1: control timeout on ep0out
usb 2-1: control timeout on ep0out
usb 2-1: device not accepting address 2, error -110
usb 2-1: new full speed USB device using address 3
usb 2-1: control timeout on ep0out
usb 2-1: control timeout on ep0out
usb 2-1: device not accepting address 3, error -110

This is probably something unique to my home machine - my work computer
uses the same kernel version with RedHat 8 and does not show this problem.
I notice that IRQ 5 seems to be shared by my network card and by USB, and
it is disabled as a result of this problem, so if I were using a LAN, I would
lose access to the LAN after this problem.


Thanks in advance,
Alex Villac�s Lasso

The output of scripts/ver_linux follows:

If some fields are empty or look unusual you may have an old version.
Compare to the current minimal requirements in Documentation/Changes.

Linux karlalex.palosanto.com 2.6.7 #4 Wed Jun 23 08:17:03 ECT 2004 i686 i686 i386 GNU/Linux

Gnu C 3.2.2
Gnu make 3.79.1
binutils 2.13.90.0.18
util-linux 2.11y
mount 2.11y
module-init-tools 0.9.14
e2fsprogs 1.32
jfsutils 1.0.17
reiserfsprogs 3.6.4
pcmcia-cs 3.1.31
quota-tools 3.06.
PPP 2.4.1
isdn4k-utils 3.1pre4
nfs-utils 1.0.1
Linux C Library 2.3.2
Dynamic linker (ldd) 2.3.2
Procps 2.0.11
Net-tools 1.60
Kbd 1.08
Sh-utils 4.5.3
Modules Loaded lp via_rhine mii af_packet floppy parport_pc parport nls_iso8859_1 nls_cp437 vfat fat usbhid uhci_hcd ehci_hcd usbcore rtc



The full trace of dmesg follows:

Enabling fast FPU save and restore... done.
Enabling unmasked SIMD FPU exception support... done.
Checking 'hlt' instruction... OK.
enabled ExtINT on CPU#0
ESR value before enabling vector: 00000000
ESR value after enabling vector: 00000000
ENABLING IO-APIC IRQs
Setting 2 in the phys_id_present_map
...changing IO-APIC physical APIC ID to 2 ... ok.
init IO_APIC IRQs
IO-APIC (apicid-pin) 2-0, 2-5, 2-10, 2-11, 2-16, 2-17, 2-18, 2-20 not connected.
..TIMER: vector=0x31 pin1=2 pin2=0
number of MP IRQ sources: 21.
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: 00178003
....... : max redirection entries: 0017
....... : PRQ implemented: 1
....... : IO APIC version: 0003
.... 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
01 001 01 0 0 0 0 0 1 1 39
02 001 01 0 0 0 0 0 1 1 31
03 001 01 0 0 0 0 0 1 1 41
04 001 01 0 0 0 0 0 1 1 49
05 000 00 1 0 0 0 0 0 0 00
06 001 01 0 0 0 0 0 1 1 51
07 001 01 0 0 0 0 0 1 1 59
08 001 01 0 0 0 0 0 1 1 61
09 001 01 0 0 0 0 0 1 1 69
0a 000 00 1 0 0 0 0 0 0 00
0b 000 00 1 0 0 0 0 0 0 00
0c 001 01 0 0 0 0 0 1 1 71
0d 001 01 0 0 0 0 0 1 1 79
0e 001 01 0 0 0 0 0 1 1 81
0f 001 01 0 0 0 0 0 1 1 89
10 0BD 0D 1 0 0 0 0 0 2 62
11 000 00 1 0 0 0 0 0 0 00
12 0DC 0C 1 0 0 0 0 0 2 E5
13 001 01 1 1 0 1 0 1 1 91
14 000 00 1 0 0 0 0 0 0 00
15 001 01 1 1 0 1 0 1 1 99
16 001 01 1 1 0 1 0 1 1 A1
17 001 01 1 1 0 1 0 1 1 99
IRQ to pin mappings:
IRQ0 -> 0:2
IRQ1 -> 0:1
IRQ3 -> 0:3
IRQ4 -> 0:4
IRQ5 -> 0:21-> 0:23
IRQ6 -> 0:6
IRQ7 -> 0:7
IRQ8 -> 0:8
IRQ9 -> 0:9
IRQ10 -> 0:19
IRQ11 -> 0:22
IRQ12 -> 0:12
IRQ13 -> 0:13
IRQ14 -> 0:14
IRQ15 -> 0:15
.................................... done.
Using local APIC timer interrupts.
calibrating APIC timer ...
..... CPU clock speed is 1699.0662 MHz.
..... host bus clock speed is 99.0980 MHz.
NET: Registered protocol family 16
PCI: PCI BIOS revision 2.10 entry at 0xfdaf1, last bus=1
PCI: Using configuration type 1
mtrr: v2.0 (20020519)
ACPI: Subsystem revision 20040326
tbxface-0117 [03] acpi_load_tables : ACPI Tables successfully acquired
Parsing all Control Methods:.............................................................................................................................
Table [DSDT](id F004) - 447 Objects with 40 Devices 125 Methods 27 Regions
ACPI Namespace successfully loaded at root c03bb7bc
ACPI: IRQ9 SCI: Edge set to Level Trigger.
evxfevnt-0093 [04] acpi_enable : Transition to ACPI mode successful
evgpeblk-0867 [06] ev_create_gpe_block : GPE 00 to 15 [_GPE] 2 regs at 0000000000000820 on int 9
evgpeblk-0925 [06] ev_create_gpe_block : Found 0 Wake, Enabled 5 Runtime GPEs in this block
Completing Region/Field/Buffer/Package initialization:................................................................................................
Initialized 27/27 Regions 9/9 Fields 41/41 Buffers 19/19 Packages (456 nodes)
Executing all Device _STA and_INI methods:...........................................
43 Devices found containing: 43 _STA, 1 _INI methods
ACPI: Interpreter enabled
ACPI: Using PIC for interrupt routing
ACPI: PCI Root Bridge [PCI0] (00:00)
PCI: Probing PCI hardware (bus 00)
ACPI: PCI Interrupt Routing Table [\_SB_.PCI0._PRT]
ACPI: Power Resource [URP1] (off)
ACPI: Power Resource [URP2] (off)
ACPI: Power Resource [FDDP] (off)
ACPI: Power Resource [LPTP] (off)
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 [LNKD] enabled at IRQ 10
ACPI: PCI Interrupt Link [LNKA] enabled at IRQ 5
ACPI: PCI Interrupt Link [LNKB] enabled at IRQ 5
ACPI: PCI Interrupt Link [LNKC] enabled at IRQ 11
pci_irq-0316 [20] acpi_pci_irq_derive : Unable to derive IRQ for device 0000:00:11.1
ACPI: No IRQ known for interrupt pin A of device 0000:00:11.1
PCI: Using ACPI for IRQ routing
vesafb: probe of vesafb0 failed with error -6
Machine check exception polling timer started.
VFS: Disk quotas dquot_6.5.1
Dquot-cache hash table entries: 1024 (order 0, 4096 bytes)
ACPI: Power Button (FF) [PWRF]
ACPI: Sleep Button (CM) [SLPB]
ACPI: Processor [CPU1] (supports C1, 16 throttling states)
Linux agpgart interface v0.100 (c) Dave Jones
Serial: 8250/16550 driver $Revision: 1.90 $ 8 ports, IRQ sharing disabled
ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS4 at I/O 0xec00 (irq = 10) is a 16550A
ttyS5 at I/O 0xec08 (irq = 10) is a 16550A
Uniform Multi-Platform E-IDE driver Revision: 7.00alpha2
ide: Assuming 33MHz system bus speed for PIO modes; override with idebus=xx
VP_IDE: IDE controller at PCI slot 0000:00:11.1
pci_irq-0316 [19] acpi_pci_irq_derive : Unable to derive IRQ for device 0000:00:11.1
ACPI: No IRQ known for interrupt pin A of device 0000:00:11.1
VP_IDE: chipset revision 6
VP_IDE: not 100% native mode: will probe irqs later
VP_IDE: VIA vt8235 (rev 00) IDE UDMA133 controller on pci0000:00:11.1
ide0: BM-DMA at 0xfc00-0xfc07, BIOS settings: hda:DMA, hdb:pio
ide1: BM-DMA at 0xfc08-0xfc0f, BIOS settings: hdc:DMA, hdd:pio
hda: Maxtor 2F040L0, ATA DISK drive
Using anticipatory io scheduler
ide0 at 0x1f0-0x1f7,0x3f6 on irq 14
hdc: SAMSUNG CD-ROM SC-152L, ATAPI CD/DVD-ROM drive
ide1 at 0x170-0x177,0x376 on irq 15
hda: max request size: 1024KiB
hda: 80293248 sectors (41110 MB) w/2048KiB Cache, CHS=16383/255/63, UDMA(133)
hda: hda1 hda2 hda3 hda4 < hda5 hda6 >
hdc: ATAPI 52X CD-ROM drive, 128kB Cache, DMA
Uniform CD-ROM driver Revision: 3.20
mice: PS/2 mouse device common for all mice
serio: i8042 AUX port at 0x60,0x64 irq 12
input: PS/2 Generic Mouse on isa0060/serio1
serio: i8042 KBD port at 0x60,0x64 irq 1
input: AT Translated Set 2 keyboard on isa0060/serio0
NET: Registered protocol family 2
IP: routing cache hash table of 4096 buckets, 32Kbytes
TCP: Hash tables configured (established 32768 bind 65536)
NET: Registered protocol family 1
NET: Registered protocol family 15
ACPI: (supports S0 S1 S4 S5)
BIOS EDD facility v0.15 2004-May-17, 1 devices found
kjournald starting. Commit interval 5 seconds
EXT3-fs: mounted filesystem with ordered data mode.
VFS: Mounted root (ext3 filesystem) readonly.
Freeing unused kernel memory: 148k freed
Real Time Clock Driver v1.12
usbcore: registered new driver usbfs
usbcore: registered new driver hub
ehci_hcd: block sizes: qh 128 qtd 96 itd 192 sitd 96
ehci_hcd 0000:00:10.3: VIA Technologies, Inc. USB 2.0
ehci_hcd 0000:00:10.3: reset hcs_params 0x3206 dbg=0 cc=3 pcc=2 ordered !ppc ports=6
ehci_hcd 0000:00:10.3: reset hcc_params 6872 thresh 7 uframes 256/512/1024
ehci_hcd 0000:00:10.3: capability 0001 at 68
ehci_hcd 0000:00:10.3: irq 10, pci mem de808f00
ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 1
ehci_hcd 0000:00:10.3: reset command 080002 (park)=0 ithresh=8 period=1024 Reset HALT
ehci_hcd 0000:00:10.3: init command 010009 (park)=0 ithresh=1 period=256 RUN
ehci_hcd 0000:00:10.3: USB 2.0 enabled, EHCI 1.00, driver 2004-May-10
ehci_hcd 0000:00:10.3: supports USB remote wakeup
usb usb1: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb1: default language 0x0409
usb usb1: Product: VIA Technologies, Inc. USB 2.0
usb usb1: Manufacturer: Linux 2.6.7 ehci_hcd
usb usb1: SerialNumber: 0000:00:10.3
usb usb1: hotplug
usb usb1: adding 1-0:1.0 (config #1, interface 0)
usb 1-0:1.0: hotplug
hub 1-0:1.0: usb_probe_interface
hub 1-0:1.0: usb_probe_interface - got id
hub 1-0:1.0: USB hub found
hub 1-0:1.0: 6 ports detected
hub 1-0:1.0: standalone hub
hub 1-0:1.0: ganged power switching
hub 1-0:1.0: individual port over-current protection
hub 1-0:1.0: Single TT
hub 1-0:1.0: TT requires at most 8 FS bit times
hub 1-0:1.0: power on to power good time: 20ms
hub 1-0:1.0: local power source is good
hub 1-0:1.0: enabling power on all ports
USB Universal Host Controller Interface driver v2.2
uhci_hcd 0000:00:10.0: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
uhci_hcd 0000:00:10.0: irq 5, io base 0000d800
uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 2
uhci_hcd 0000:00:10.0: detected 2 ports
usb usb2: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb2: default language 0x0409
usb usb2: Product: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller
usb usb2: Manufacturer: Linux 2.6.7 uhci_hcd
usb usb2: SerialNumber: 0000:00:10.0
usb usb2: hotplug
usb usb2: adding 2-0:1.0 (config #1, interface 0)
usb 2-0:1.0: hotplug
hub 2-0:1.0: usb_probe_interface
hub 2-0:1.0: usb_probe_interface - got id
hub 2-0:1.0: USB hub found
hub 2-0:1.0: 2 ports detected
hub 2-0:1.0: standalone hub
hub 2-0:1.0: no power switching (usb 1.0)
hub 2-0:1.0: individual port over-current protection
hub 2-0:1.0: power on to power good time: 2ms
hub 2-0:1.0: local power source is good
uhci_hcd 0000:00:10.1: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (#2)
uhci_hcd 0000:00:10.1: irq 5, io base 0000dc00
uhci_hcd 0000:00:10.0: port 1 portsc 008a
hub 2-0:1.0: port 1, status 0100, change 0003, 12 Mb/s
uhci_hcd 0000:00:10.0: port 2 portsc 008a
hub 2-0:1.0: port 2, status 0100, change 0003, 12 Mb/s
uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 3
uhci_hcd 0000:00:10.1: detected 2 ports
usb usb3: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb3: default language 0x0409
usb usb3: Product: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (#2)
usb usb3: Manufacturer: Linux 2.6.7 uhci_hcd
usb usb3: SerialNumber: 0000:00:10.1
usb usb3: hotplug
usb usb3: adding 3-0:1.0 (config #1, interface 0)
usb 3-0:1.0: hotplug
uhci_hcd 0000:00:10.0: port 1 portsc 0088
hub 2-0:1.0: port 1 enable change, status 00000100
uhci_hcd 0000:00:10.0: port 2 portsc 0088
hub 2-0:1.0: port 2 enable change, status 00000100
hub 3-0:1.0: usb_probe_interface
hub 3-0:1.0: usb_probe_interface - got id
hub 3-0:1.0: USB hub found
hub 3-0:1.0: 2 ports detected
hub 3-0:1.0: standalone hub
hub 3-0:1.0: no power switching (usb 1.0)
hub 3-0:1.0: individual port over-current protection
hub 3-0:1.0: power on to power good time: 2ms
hub 3-0:1.0: local power source is good
uhci_hcd 0000:00:10.2: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (#3)
uhci_hcd 0000:00:10.2: irq 11, io base 0000e000
uhci_hcd 0000:00:10.1: port 1 portsc 018a
hub 3-0:1.0: port 1, status 0300, change 0003, 1.5 Mb/s
uhci_hcd 0000:00:10.1: port 2 portsc 018a
hub 3-0:1.0: port 2, status 0300, change 0003, 1.5 Mb/s
uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 4
uhci_hcd 0000:00:10.2: detected 2 ports
usb usb4: new device strings: Mfr=3, Product=2, SerialNumber=1
usb usb4: default language 0x0409
usb usb4: Product: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (#3)
usb usb4: Manufacturer: Linux 2.6.7 uhci_hcd
usb usb4: SerialNumber: 0000:00:10.2
usb usb4: hotplug
usb usb4: adding 4-0:1.0 (config #1, interface 0)
usb 4-0:1.0: hotplug
hub 4-0:1.0: usb_probe_interface
hub 4-0:1.0: usb_probe_interface - got id
hub 4-0:1.0: USB hub found
hub 4-0:1.0: 2 ports detected
hub 4-0:1.0: standalone hub
hub 4-0:1.0: no power switching (usb 1.0)
hub 4-0:1.0: individual port over-current protection
hub 4-0:1.0: power on to power good time: 2ms
hub 4-0:1.0: local power source is good
uhci_hcd 0000:00:10.2: port 1 portsc 018a
hub 4-0:1.0: port 1, status 0300, change 0003, 1.5 Mb/s
uhci_hcd 0000:00:10.2: port 2 portsc 008a
hub 4-0:1.0: port 2, status 0100, change 0003, 12 Mb/s
uhci_hcd 0000:00:10.1: port 1 portsc 0188
hub 3-0:1.0: port 1 enable change, status 00000300
uhci_hcd 0000:00:10.1: port 2 portsc 0188
hub 3-0:1.0: port 2 enable change, status 00000300
uhci_hcd 0000:00:10.2: port 1 portsc 0188
hub 4-0:1.0: port 1 enable change, status 00000300
uhci_hcd 0000:00:10.2: port 2 portsc 0088
hub 4-0:1.0: port 2 enable change, status 00000100
uhci_hcd 0000:00:10.0: suspend_hc
uhci_hcd 0000:00:10.1: suspend_hc
usbcore: registered new driver hiddev
usbcore: registered new driver usbhid
drivers/usb/input/hid-core.c: v2.0:USB HID core driver
uhci_hcd 0000:00:10.2: suspend_hc
EXT3 FS on hda3, internal journal
Adding 522072k swap on /dev/hda5. Priority:-1 extents:1
parport0: PC-style at 0xe800 [PCSPP,EPP]
parport1: PC-style at 0x378 (0x778), irq 7, dma 7 [PCSPP,TRISTATE,COMPAT,ECP,DMA]
inserting floppy driver for 2.6.7
Floppy drive(s): fd0 is 1.44M
FDC 0 is a post-1991 82077
ip_tables: (C) 2000-2002 Netfilter core team
NET: Registered protocol family 17
via-rhine.c:v1.10-LK1.1.20-2.6 May-23-2004 Written by Donald Becker
eth0: VIA VT6102 Rhine-II at 0xcc00, 00:0a:e6:57:b2:a0, IRQ 5.
eth0: MII PHY found at address 1, status 0x7849 advertising 05e1 Link 0000.
ip_tables: (C) 2000-2002 Netfilter core team
lp0: using parport0 (polling).
lp1: using parport1 (interrupt-driven).
apm: BIOS version 1.2 Flags 0x03 (Driver version 1.16ac)
apm: overridden by ACPI.
atkbd.c: Spurious ACK on isa0060/serio0. Some program, like XFree86, might be trying access hardware directly.
atkbd.c: Spurious ACK on isa0060/serio0. Some program, like XFree86, might be trying access hardware directly.
ehci_hcd 0000:00:10.3: GetStatus port 1 status 001803 POWER sig=j CSC CONNECT
hub 1-0:1.0: port 1, status 0501, change 0001, 480 Mb/s
hub 1-0:1.0: debounce: port 1: delay 100ms stable 4 status 0x501
hub 1-0:1.0: port 1 not reset yet, waiting 50ms
ehci_hcd 0000:00:10.3: port 1 full speed --> companion
ehci_hcd 0000:00:10.3: GetStatus port 1 status 003801 POWER OWNER sig=j CONNECT
uhci_hcd 0000:00:10.0: port 1 portsc 0093
hub 2-0:1.0: port 1, status 0101, change 0001, 12 Mb/s
uhci_hcd 0000:00:10.0: wakeup_hc
hub 2-0:1.0: debounce: port 1: delay 100ms stable 4 status 0x101
usb 2-1: new full speed USB device using address 2
irq 5: nobody cared!
[<c010726a>] __report_bad_irq+0x2a/0x8b
[<c0107354>] note_interrupt+0x6f/0x9f
[<c0107622>] do_IRQ+0x131/0x140
[<c010301e>] default_idle+0x0/0x27
[<c0105998>] common_interrupt+0x18/0x20
[<c010301e>] default_idle+0x0/0x27
[<c0103042>] default_idle+0x24/0x27
[<c01030a9>] cpu_idle+0x2e/0x37
[<c03865d2>] start_kernel+0x15b/0x175
[<c0386321>] unknown_bootoption+0x0/0x129


handlers:
[<de8372fb>] (usb_hcd_irq+0x0/0x67 [usbcore])
[<de8372fb>] (usb_hcd_irq+0x0/0x67 [usbcore])
[<de8c955e>] (rhine_interrupt+0x0/0x1db [via_rhine])
Disabling IRQ #5
usb 2-1: control timeout on ep0in
usb 2-1: control timeout on ep0out
usb 2-1: control timeout on ep0out
usb 2-1: device not accepting address 2, error -110
usb 2-1: new full speed USB device using address 3
usb 2-1: control timeout on ep0out
usb 2-1: control timeout on ep0out
usb 2-1: device not accepting address 3, error -110



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