### first attempt to plug in iPod ### [17181313.552000] usb 4-2: new high speed USB device using ehci_hcd and address 2 [17181313.684000] usb 4-2: configuration #1 chosen from 1 choice [17181313.684000] scsi3 : SCSI emulation for USB Mass Storage devices [17181313.684000] usb-storage: device found at 2 [17181313.684000] usb-storage: waiting for device to settle before scanning [17181318.684000] usb-storage: device scan complete [17181318.684000] Vendor: Apple Model: iPod Rev: 1.62 [17181318.684000] Type: Direct-Access ANSI SCSI revision: 00 [17181318.684000] SCSI device sda: 39063023 512-byte hdwr sectors (20000 MB) [17181318.688000] sda: Write Protect is off [17181318.688000] sda: Mode Sense: 64 00 00 08 [17181318.688000] sda: assuming drive cache: write through [17181318.688000] SCSI device sda: 39063023 512-byte hdwr sectors (20000 MB) [17181318.688000] sda: Write Protect is off [17181318.688000] sda: Mode Sense: 64 00 00 08 [17181318.688000] sda: assuming drive cache: write through [17181318.688000] sda: sda1 sda2 [17181318.760000] sd 3:0:0:0: Attached scsi removable disk sda [17181318.760000] sd 3:0:0:0: Attached scsi generic sg0 type 0 [17181319.108000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17181349.352000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17181359.596000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17181375.944000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17181376.192000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17181386.436000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17181386.568000] sd 3:0:0:0: scsi: Device offlined - not ready after error recovery [17181386.568000] sd 3:0:0:0: SCSI error: return code = 0x50000 [17181386.568000] end_request: I/O error, dev sda, sector 579 [17181386.568000] Buffer I/O error on device sda1, logical block 258 [17181386.568000] sd 3:0:0:0: rejecting I/O to offline device [17181386.568000] Buffer I/O error on device sda1, logical block 259 [17181386.568000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] Buffer I/O error on device sda1, logical block 258 [17181386.572000] Buffer I/O error on device sda1, logical block 259 [17181386.572000] sd 3:0:0:0: SCSI error: return code = 0x10000 [17181386.572000] end_request: I/O error, dev sda, sector 39053765 [17181386.572000] Buffer I/O error on device sda2, logical block 19486720 [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] Buffer I/O error on device sda2, logical block 19486721 [17181386.572000] Buffer I/O error on device sda2, logical block 19486722 [17181386.572000] Buffer I/O error on device sda2, logical block 19486723 [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] Buffer I/O error on device sda2, logical block 19486720 [17181386.572000] Buffer I/O error on device sda2, logical block 19486721 [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.572000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device [17181386.576000] sd 3:0:0:0: rejecting I/O to offline device ### disable ehci with "sudo modprobe -r ehci_hcd"; iPod automounts (only USB 1.1 support); dmesg yields this: ### [17181740.616000] ehci_hcd 0000:00:03.3: remove, state 1 [17181740.616000] usb usb4: USB disconnect, address 1 [17181740.616000] usb 4-2: USB disconnect, address 2 [17181740.624000] ehci_hcd 0000:00:03.3: USB bus 4 deregistered [17181740.624000] ohci_hcd 0000:00:03.1: wakeup [17181740.680000] ACPI: PCI interrupt for device 0000:00:03.3 disabled [17181741.008000] usb 2-1: new full speed USB device using ohci_hcd and address 2 [17181741.224000] usb 2-1: configuration #1 chosen from 1 choice [17181741.224000] scsi4 : SCSI emulation for USB Mass Storage devices [17181741.228000] usb-storage: device found at 2 [17181741.228000] usb-storage: waiting for device to settle before scanning [17181746.228000] usb-storage: device scan complete [17181746.236000] Vendor: Apple Model: iPod Rev: 1.62 [17181746.236000] Type: Direct-Access ANSI SCSI revision: 00 [17181746.248000] SCSI device sda: 39063023 512-byte hdwr sectors (20000 MB) [17181746.260000] sda: Write Protect is off [17181746.260000] sda: Mode Sense: 64 00 00 08 [17181746.260000] sda: assuming drive cache: write through [17181746.280000] SCSI device sda: 39063023 512-byte hdwr sectors (20000 MB) [17181746.292000] sda: Write Protect is off [17181746.292000] sda: Mode Sense: 64 00 00 08 [17181746.292000] sda: assuming drive cache: write through [17181746.292000] sda: sda1 sda2 [17181749.244000] sd 4:0:0:0: Attached scsi removable disk sda [17181749.244000] sd 4:0:0:0: Attached scsi generic sg0 type 0 [17181750.420000] FAT: utf8 is not a recommended IO charset for FAT filesystems, filesystem will be case sensitive! ### activate ehci with "sudo modprobe ehci_hcd"; iPod unmounts; unsafe device removal notice appears; dmesg yields this: ### [17182005.748000] ACPI: PCI Interrupt 0000:00:03.3[D] -> GSI 23 (level, low) -> IRQ 209 [17182005.748000] ehci_hcd 0000:00:03.3: EHCI Host Controller [17182005.748000] ehci_hcd 0000:00:03.3: new USB bus registered, assigned bus number 4 [17182005.752000] PCI: cache line size of 128 is not supported by device 0000:00:03.3 [17182005.752000] ehci_hcd 0000:00:03.3: irq 209, io mem 0xe4124000 [17182005.752000] ehci_hcd 0000:00:03.3: USB 2.0 started, EHCI 1.00, driver 10 Dec 2004 [17182005.752000] usb usb4: configuration #1 chosen from 1 choice [17182005.752000] hub 4-0:1.0: USB hub found [17182005.752000] hub 4-0:1.0: 6 ports detected [17182006.028000] sda : READ CAPACITY failed. [17182006.028000] sda : status=0, message=00, host=7, driver=00 [17182006.028000] sda : sense not available. [17182006.028000] sda: Write Protect is off [17182006.028000] sda: Mode Sense: 00 00 00 00 [17182006.028000] sda: assuming drive cache: write through [17182006.140000] usb 4-2: new high speed USB device using ehci_hcd and address 2 [17182006.272000] usb 4-2: configuration #1 chosen from 1 choice [17182006.272000] scsi5 : SCSI emulation for USB Mass Storage devices [17182006.272000] usb 2-1: USB disconnect, address 2 [17182006.272000] sd 4:0:0:0: rejecting I/O to device being removed [17182006.272000] printk: 262 messages suppressed. [17182006.272000] Buffer I/O error on device sda2, logical block 76229 [17182006.272000] lost page write due to I/O error on sda2 [17182006.272000] sd 4:0:0:0: rejecting I/O to device being removed [17182006.272000] Buffer I/O error on device sda2, logical block 76268 [17182006.272000] lost page write due to I/O error on sda2 [17182006.272000] sd 4:0:0:0: rejecting I/O to device being removed [17182006.272000] Buffer I/O error on device sda2, logical block 76285 [17182006.272000] lost page write due to I/O error on sda2 [17182006.292000] usb-storage: device found at 2 [17182006.292000] usb-storage: waiting for device to settle before scanning [17182007.156000] 4:0:0:0: rejecting I/O to dead device [17182011.292000] usb-storage: device scan complete [17182011.292000] Vendor: Apple Model: iPod Rev: 1.62 [17182011.292000] Type: Direct-Access ANSI SCSI revision: 00 [17182011.296000] SCSI device sda: 39063023 512-byte hdwr sectors (20000 MB) [17182011.296000] sda: Write Protect is off [17182011.296000] sda: Mode Sense: 64 00 00 08 [17182011.296000] sda: assuming drive cache: write through [17182011.296000] SCSI device sda: 39063023 512-byte hdwr sectors (20000 MB) [17182011.296000] sda: Write Protect is off [17182011.296000] sda: Mode Sense: 64 00 00 08 [17182011.300000] sda: assuming drive cache: write through [17182011.300000] sda: sda1 sda2 [17182011.364000] sd 5:0:0:0: Attached scsi removable disk sda [17182011.364000] sd 5:0:0:0: Attached scsi generic sg0 type 0 [17182011.664000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17182041.908000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17182052.152000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17182068.500000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17182068.748000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17182078.992000] usb 4-2: reset high speed USB device using ehci_hcd and address 2 [17182079.128000] sd 5:0:0:0: scsi: Device offlined - not ready after error recovery [17182079.128000] sd 5:0:0:0: SCSI error: return code = 0x50000 [17182079.128000] end_request: I/O error, dev sda, sector 107 [17182079.128000] Buffer I/O error on device sda1, logical block 22 [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] Buffer I/O error on device sda1, logical block 23 [17182079.128000] Buffer I/O error on device sda1, logical block 24 [17182079.128000] Buffer I/O error on device sda1, logical block 25 [17182079.128000] Buffer I/O error on device sda1, logical block 26 [17182079.128000] Buffer I/O error on device sda1, logical block 27 [17182079.128000] Buffer I/O error on device sda1, logical block 28 [17182079.128000] Buffer I/O error on device sda1, logical block 29 [17182079.128000] Buffer I/O error on device sda1, logical block 30 [17182079.128000] Buffer I/O error on device sda1, logical block 31 [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: SCSI error: return code = 0x10000 [17182079.128000] end_request: I/O error, dev sda, sector 39053765 [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.128000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device [17182079.132000] sd 5:0:0:0: rejecting I/O to offline device