I am also affected by this bug. I am running 2.6.15-26-686 on an Averatec 3250 laptop.
In addition to the threads listed above, the following thread has also appeared on the forums discussing this bug: http://www.ubuntuforums.org/showthread.php?t=89266 for my system: lspci: 0000:00:00.0 Host bridge: VIA Technologies, Inc. VT8378 [KM400/A] Chipset Host Bridge 0000:00:01.0 PCI bridge: VIA Technologies, Inc. VT8237 PCI Bridge 0000:00:09.0 Network controller: RaLink Ralink RT2500 802.11 Cardbus Reference Card (rev 01) 0000:00:0a.0 CardBus bridge: O2 Micro, Inc. OZ601/6912/711E0 CardBus/SmartCardBus Controller 0000:00:10.0 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 0000:00:10.1 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 0000:00:10.2 USB Controller: VIA Technologies, Inc. VT82xxxxx UHCI USB 1.1 Controller (rev 80) 0000:00:10.3 USB Controller: VIA Technologies, Inc. USB 2.0 (rev 82) 0000:00:11.0 ISA bridge: VIA Technologies, Inc. VT8235 ISA Bridge 0000:00:11.1 IDE interface: VIA Technologies, Inc. VT82C586A/B/VT82C686/A/B/VT823x/A/C PIPC Bus Master IDE (rev 06) 0000:00:11.5 Multimedia audio controller: VIA Technologies, Inc. VT8233/A/8235/8237 AC97 Audio Controller (rev 50) 0000:00:11.6 Communication controller: VIA Technologies, Inc. AC'97 Modem Controller (rev 80) 0000:00:12.0 Ethernet controller: VIA Technologies, Inc. VT6102 [Rhine-II] (rev 74) 0000:01:00.0 VGA compatible controller: VIA Technologies, Inc. VT8378 [S3 UniChrome] Integrated Video (rev 01) The following are various filtered kernel logs from my system before connecting my USB harddrive, after connecting the USB harddrive, and then after removing the ehci driver. dmesg | grep -i usb [17179570.616000] SLPB PCI0 USB1 USB2 USB3 EHCI MC9 ILAN [17179575.336000] usbcore: registered new driver usbfs [17179575.336000] usbcore: registered new driver hub [17179575.336000] USB Universal Host Controller Interface driver v2.3 [17179575.340000] uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 1 [17179575.340000] hub 1-0:1.0: USB hub found [17179575.444000] uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 2 [17179575.444000] hub 2-0:1.0: USB hub found [17179575.548000] uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 3 [17179575.548000] hub 3-0:1.0: USB hub found [17179575.652000] ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 4 [17179575.652000] ehci_hcd 0000:00:10.3: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 [17179575.652000] hub 4-0:1.0: USB hub found [17186317.248000] usb 4-3: new high speed USB device using ehci_hcd and address 2 [17186328.792000] usb 4-3: device not accepting address 2, error -110 [17186333.124000] usb 4-3: new high speed USB device using ehci_hcd and address 4 [17186344.668000] usb 4-3: device not accepting address 4, error -110 [17186349.000000] usb 4-3: new high speed USB device using ehci_hcd and address 6 [17186360.544000] usb 4-3: device not accepting address 6, error -110 [17186364.876000] usb 4-3: new high speed USB device using ehci_hcd and address 8 [17186376.420000] usb 4-3: device not accepting address 8, error -110 [17186380.752000] usb 4-3: new high speed USB device using ehci_hcd and address 10 [17186392.296000] usb 4-3: device not accepting address 10, error -110 [17186396.628000] usb 4-3: new high speed USB device using ehci_hcd and address 12 [17186408.172000] usb 4-3: device not accepting address 12, error -110 [17186408.284000] usb 4-3: new high speed USB device using ehci_hcd and address 13 [17186419.828000] usb 4-3: device not accepting address 13, error -110 [17186424.348000] usb 4-3: new high speed USB device using ehci_hcd and address 15 [17186435.892000] usb 4-3: device not accepting address 15, error -110 [17186440.224000] usb 4-3: new high speed USB device using ehci_hcd and address 17 [17186451.768000] usb 4-3: device not accepting address 17, error -110 [17186456.100000] usb 4-3: new high speed USB device using ehci_hcd and address 19 [17186467.644000] usb 4-3: device not accepting address 19, error -110 [17186471.976000] usb 4-3: new high speed USB device using ehci_hcd and address 21 [17186483.520000] usb 4-3: device not accepting address 21, error -110 [17186487.852000] usb 4-3: new high speed USB device using ehci_hcd and address 23 [17186499.396000] usb 4-3: device not accepting address 23, error -110 [17186503.728000] usb 4-3: new high speed USB device using ehci_hcd and address 25 [17186515.272000] usb 4-3: device not accepting address 25, error -110 [17186519.604000] usb 4-3: new high speed USB device using ehci_hcd and address 27 [17186531.148000] usb 4-3: device not accepting address 27, error -110 [17186535.480000] usb 4-3: new high speed USB device using ehci_hcd and address 29 [17186547.024000] usb 4-3: device not accepting address 29, error -110 [17186551.356000] usb 4-3: new high speed USB device using ehci_hcd and address 31 [17186562.900000] usb 4-3: device not accepting address 31, error -110 [17186567.232000] usb 4-3: new high speed USB device using ehci_hcd and address 33 [17186578.776000] usb 4-3: device not accepting address 33, error -110 [17186583.108000] usb 4-3: new high speed USB device using ehci_hcd and address 35 [17186594.652000] usb 4-3: device not accepting address 35, error -110 [17186598.984000] usb 4-3: new high speed USB device using ehci_hcd and address 37 [17186605.520000] usb 4-3: device not accepting address 37, error -108 [17186605.524000] usb usb4: USB disconnect, address 1 [17186605.528000] ehci_hcd 0000:00:10.3: USB bus 4 deregistered [17186605.772000] usb 2-1: new full speed USB device using uhci_hcd and address 2 [17186606.368000] Initializing USB Mass Storage driver... [17186606.368000] scsi0 : SCSI emulation for USB Mass Storage devices [17186606.372000] usb-storage: device found at 2 [17186606.372000] usb-storage: waiting for device to settle before scanning [17186606.372000] usbcore: registered new driver usb-storage [17186606.372000] USB Mass Storage support registered. [17186611.400000] usb-storage: device scan complete dmesg | grep -i ehci [17179570.616000] SLPB PCI0 USB1 USB2 USB3 EHCI MC9 ILAN [17179575.652000] ehci_hcd 0000:00:10.3: EHCI Host Controller [17179575.652000] ehci_hcd 0000:00:10.3: new USB bus registered, assigned bus number 4 [17179575.652000] ehci_hcd 0000:00:10.3: irq 6, io mem 0xdfffdf00 [17179575.652000] ehci_hcd 0000:00:10.3: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 [17186317.248000] usb 4-3: new high speed USB device using ehci_hcd and address 2 [17186318.248000] ehci_hcd 0000:00:10.3: Unlink after no-IRQ? Controller is probably using the wrong IRQ. [17186333.124000] usb 4-3: new high speed USB device using ehci_hcd and address 4 [17186349.000000] usb 4-3: new high speed USB device using ehci_hcd and address 6 [17186364.876000] usb 4-3: new high speed USB device using ehci_hcd and address 8 [17186380.752000] usb 4-3: new high speed USB device using ehci_hcd and address 10 [17186396.628000] usb 4-3: new high speed USB device using ehci_hcd and address 12 [17186408.284000] usb 4-3: new high speed USB device using ehci_hcd and address 13 [17186424.348000] usb 4-3: new high speed USB device using ehci_hcd and address 15 [17186440.224000] usb 4-3: new high speed USB device using ehci_hcd and address 17 [17186456.100000] usb 4-3: new high speed USB device using ehci_hcd and address 19 [17186471.976000] usb 4-3: new high speed USB device using ehci_hcd and address 21 [17186487.852000] usb 4-3: new high speed USB device using ehci_hcd and address 23 [17186503.728000] usb 4-3: new high speed USB device using ehci_hcd and address 25 [17186519.604000] usb 4-3: new high speed USB device using ehci_hcd and address 27 [17186535.480000] usb 4-3: new high speed USB device using ehci_hcd and address 29 [17186551.356000] usb 4-3: new high speed USB device using ehci_hcd and address 31 [17186567.232000] usb 4-3: new high speed USB device using ehci_hcd and address 33 [17186583.108000] usb 4-3: new high speed USB device using ehci_hcd and address 35 [17186598.984000] usb 4-3: new high speed USB device using ehci_hcd and address 37 [17186602.428000] ehci_hcd 0000:00:10.3: remove, state 1 [17186605.528000] ehci_hcd 0000:00:10.3: USB bus 4 deregistered dmesg | grep -i uhci [17179575.340000] uhci_hcd 0000:00:10.0: UHCI Host Controller [17179575.340000] uhci_hcd 0000:00:10.0: new USB bus registered, assigned bus number 1 [17179575.340000] uhci_hcd 0000:00:10.0: irq 6, io base 0x0000e400 [17179575.444000] uhci_hcd 0000:00:10.1: UHCI Host Controller [17179575.444000] uhci_hcd 0000:00:10.1: new USB bus registered, assigned bus number 2 [17179575.444000] uhci_hcd 0000:00:10.1: irq 6, io base 0x0000e800 [17179575.548000] uhci_hcd 0000:00:10.2: UHCI Host Controller [17179575.548000] uhci_hcd 0000:00:10.2: new USB bus registered, assigned bus number 3 [17179575.548000] uhci_hcd 0000:00:10.2: irq 6, io base 0x0000ec00 [17186605.772000] usb 2-1: new full speed USB device using uhci_hcd and address 2 Thanks, Hal -- Via USB and ehci_hcd bug: USB not recognized - IRQ issue https://launchpad.net/bugs/53972 -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
