Hi, I have a problem with sdhc and sd-cards. I cannot access the cards because I always get I/O errors according to dmesg. I tried 2 types of card readers and 3 types of sdhc cards. I also tried the sdhc cards with sd-card adapters. Interesting is, that i both cases, sdhc card directly and with a sdcard adapter, there is no accessibility. But, dmesg output with the I/O error only comes with sdhc directly. I also tried some usb-storage quirks. Nothing worked. Approximately a year ago, as I can recall with kernel 3.*, the cards worked proper. I cannot access the cards with dd and so on. I only register, that I can open den device with gdisk, a least it looks this way. You can even recognice the size of the card. More Output below. ###lsusb Output: [root@Rechner ~]# lsusb Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 003 Device 004: ID 05e3:0745 Genesys Logic, Inc. Logilink CR0012 Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 002: ID 046d:c52e Logitech, Inc. MK260 Wireless Combo Receiver Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub ###Detail lsusb Output: [root@Rechner ~]# lsusb -v Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0001 1.1 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ohci_hcd iProduct 2 OHCI PCI host controller iSerial 1 0000:00:14.5 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 2 wHubCharacteristic 0x0012 No power switching (usb 1.0) No overcurrent protection bPwrOn2PwrGood 2 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered Bus 004 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0002 2.0 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ehci_hcd iProduct 2 EHCI Host Controller iSerial 1 0000:00:13.2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 6 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 10 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power Port 4: 0000.0100 power Port 5: 0000.0100 power Port 6: 0000.0100 power can't get device qualifier: Resource temporarily unavailable can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0001 1.1 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ohci_hcd iProduct 2 OHCI PCI host controller iSerial 1 0000:00:13.1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 3 wHubCharacteristic 0x0012 No power switching (usb 1.0) No overcurrent protection bPwrOn2PwrGood 2 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0001 1.1 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ohci_hcd iProduct 2 OHCI PCI host controller iSerial 1 0000:00:13.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 3 wHubCharacteristic 0x0012 No power switching (usb 1.0) No overcurrent protection bPwrOn2PwrGood 2 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered Bus 003 Device 004: ID 05e3:0745 Genesys Logic, Inc. Logilink CR0012 Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 idVendor 0x05e3 Genesys Logic, Inc. idProduct 0x0745 Logilink CR0012 bcdDevice 9.02 iManufacturer 0 iProduct 1 USB Storage iSerial 2 000000000902 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 32 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0x80 (Bus Powered) MaxPower 500mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 2 bInterfaceClass 8 Mass Storage bInterfaceSubClass 6 SCSI bInterfaceProtocol 80 Bulk-Only iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x02 EP 2 OUT bmAttributes 2 Transfer Type Bulk Synch Type None Usage Type Data wMaxPacketSize 0x0200 1x 512 bytes bInterval 0 Device Qualifier (for other device speed): bLength 10 bDescriptorType 6 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 64 bNumConfigurations 1 can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered) Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0002 2.0 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ehci_hcd iProduct 2 EHCI Host Controller iSerial 1 0000:00:12.2 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0004 1x 4 bytes bInterval 12 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 6 wHubCharacteristic 0x000a No power switching (usb 1.0) Per-port overcurrent protection bPwrOn2PwrGood 10 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0503 highspeed power enable connect Port 3: 0000.0100 power Port 4: 0000.0100 power Port 5: 0000.0100 power Port 6: 0000.0100 power can't get device qualifier: Resource temporarily unavailable can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered Bus 002 Device 002: ID 046d:c52e Logitech, Inc. MK260 Wireless Combo Receiver Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 2.00 bDeviceClass 0 bDeviceSubClass 0 bDeviceProtocol 0 bMaxPacketSize0 8 idVendor 0x046d Logitech, Inc. idProduct 0xc52e MK260 Wireless Combo Receiver bcdDevice 23.01 iManufacturer 1 Logitech iProduct 2 USB Receiver iSerial 0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 59 bNumInterfaces 2 bConfigurationValue 1 iConfiguration 4 RQR23.01_B0006 bmAttributes 0xa0 (Bus Powered) Remote Wakeup MaxPower 98mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 1 Boot Interface Subclass bInterfaceProtocol 1 Keyboard iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 59 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0008 1x 8 bytes bInterval 8 Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 1 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 3 Human Interface Device bInterfaceSubClass 1 Boot Interface Subclass bInterfaceProtocol 2 Mouse iInterface 0 HID Device Descriptor: bLength 9 bDescriptorType 33 bcdHID 1.11 bCountryCode 0 Not supported bNumDescriptors 1 bDescriptorType 34 Report wDescriptorLength 177 Report Descriptors: ** UNAVAILABLE ** Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x82 EP 2 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0014 1x 20 bytes bInterval 2 can't get device qualifier: Resource temporarily unavailable can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0000 (Bus Powered) Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0001 1.1 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ohci_hcd iProduct 2 OHCI PCI host controller iSerial 1 0000:00:12.1 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 3 wHubCharacteristic 0x0012 No power switching (usb 1.0) No overcurrent protection bPwrOn2PwrGood 2 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0103 power enable connect can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered Bus 001 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Device Descriptor: bLength 18 bDescriptorType 1 bcdUSB 1.10 bDeviceClass 9 Hub bDeviceSubClass 0 bDeviceProtocol 0 Full speed (or root) hub bMaxPacketSize0 64 idVendor 0x1d6b Linux Foundation idProduct 0x0001 1.1 root hub bcdDevice 4.03 iManufacturer 3 Linux 4.3.3-1-ARCH ohci_hcd iProduct 2 OHCI PCI host controller iSerial 1 0000:00:12.0 bNumConfigurations 1 Configuration Descriptor: bLength 9 bDescriptorType 2 wTotalLength 25 bNumInterfaces 1 bConfigurationValue 1 iConfiguration 0 bmAttributes 0xe0 Self Powered Remote Wakeup MaxPower 0mA Interface Descriptor: bLength 9 bDescriptorType 4 bInterfaceNumber 0 bAlternateSetting 0 bNumEndpoints 1 bInterfaceClass 9 Hub bInterfaceSubClass 0 bInterfaceProtocol 0 Full speed (or root) hub iInterface 0 Endpoint Descriptor: bLength 7 bDescriptorType 5 bEndpointAddress 0x81 EP 1 IN bmAttributes 3 Transfer Type Interrupt Synch Type None Usage Type Data wMaxPacketSize 0x0002 1x 2 bytes bInterval 255 Hub Descriptor: bLength 9 bDescriptorType 41 nNbrPorts 3 wHubCharacteristic 0x0012 No power switching (usb 1.0) No overcurrent protection bPwrOn2PwrGood 2 * 2 milli seconds bHubContrCurrent 0 milli Ampere DeviceRemovable 0x00 PortPwrCtrlMask 0xff Hub Port Status: Port 1: 0000.0100 power Port 2: 0000.0100 power Port 3: 0000.0100 power can't get debug descriptor: Resource temporarily unavailable Device Status: 0x0001 Self Powered [root@Rechner ~]# ###Dmesg after inserting the sdhc card [ 37.700261] usb 3-2: USB disconnect, device number 2 [ 37.961023] usb 3-2: new high-speed USB device number 4 using ehci-pci [ 38.097427] usb-storage 3-2:1.0: USB Mass Storage device detected [ 38.098596] scsi host7: usb-storage 3-2:1.0 [ 39.099025] scsi 7:0:0:0: Direct-Access Generic STORAGE DEVICE 0902 PQ: 0 ANSI: 6 [ 39.331856] sd 7:0:0:0: [sdc] 15564800 512-byte logical blocks: (7.96 GB/7.42 GiB) [ 39.333349] sd 7:0:0:0: [sdc] Write Protect is off [ 39.333363] sd 7:0:0:0: [sdc] Mode Sense: 21 00 00 00 [ 39.334991] sd 7:0:0:0: [sdc] Write cache: disabled, read cache: enabled, doesn't support DPO or FUA [ 41.094909] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 41.094923] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 41.094931] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 41.094939] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 41.094946] blk_update_request: I/O error, dev sdc, sector 0 [ 41.094955] Buffer I/O error on dev sdc, logical block 0, async page read [ 42.846495] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 42.846509] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 42.846517] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 42.846525] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 42.846531] blk_update_request: I/O error, dev sdc, sector 0 [ 42.846541] Buffer I/O error on dev sdc, logical block 0, async page read [ 42.846597] ldm_validate_partition_table(): Disk read failed. [ 44.595789] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 44.595804] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 44.595811] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 44.595819] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 44.595825] blk_update_request: I/O error, dev sdc, sector 0 [ 44.595834] Buffer I/O error on dev sdc, logical block 0, async page read [ 46.346338] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 46.346353] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 46.346360] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 46.346369] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 46.346376] blk_update_request: I/O error, dev sdc, sector 0 [ 46.346386] Buffer I/O error on dev sdc, logical block 0, async page read [ 48.094779] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 48.094794] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 48.094801] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 48.094809] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 48.094816] blk_update_request: I/O error, dev sdc, sector 0 [ 48.094825] Buffer I/O error on dev sdc, logical block 0, async page read [ 48.094880] sdc: unable to read partition table [ 48.100667] sd 7:0:0:0: [sdc] Attached SCSI removable disk [ 49.856376] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 49.856391] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 49.856398] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 49.856407] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f 80 00 00 08 00 [ 49.856414] blk_update_request: I/O error, dev sdc, sector 15564672 [ 51.607715] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 51.607729] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 51.607737] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 51.607745] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f 80 00 00 08 00 [ 51.607752] blk_update_request: I/O error, dev sdc, sector 15564672 [ 51.607761] Buffer I/O error on dev sdc, logical block 1945584, async page read ###I can open the card with gdisk. I looks like I can partition the sdhc. [root@Rechner ~]# gdisk /dev/sdc GPT fdisk (gdisk) version 1.0.1 Warning! Read error 5; strange behavior now likely! Warning! Read error 5; strange behavior now likely! Partition table scan: MBR: not present BSD: not present APM: not present GPT: not present Creating new GPT entries. Command (? for help): p Disk /dev/sdc: 15564800 sectors, 7.4 GiB Logical sector size: 512 bytes Disk identifier (GUID): 9601E190-5896-4BD1-8633-DEA9EFA7E116 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 15564766 Partitions will be aligned on 2048-sector boundaries Total free space is 15564733 sectors (7.4 GiB) Number Start (sector) End (sector) Size Code Name Command (? for help): n Partition number (1-128, default 1): First sector (34-15564766, default = 2048) or {+-}size{KMGTP}: Last sector (2048-15564766, default = 15564766) or {+-}size{KMGTP}: Current type is 'Linux filesystem' Hex code or GUID (L to show codes, Enter = 8300): Changed type of partition to 'Linux filesystem' Command (? for help): p Disk /dev/sdc: 15564800 sectors, 7.4 GiB Logical sector size: 512 bytes Disk identifier (GUID): 9601E190-5896-4BD1-8633-DEA9EFA7E116 Partition table holds up to 128 entries First usable sector is 34, last usable sector is 15564766 Partitions will be aligned on 2048-sector boundaries Total free space is 2014 sectors (1007.0 KiB) Number Start (sector) End (sector) Size Code Name 1 2048 15564766 7.4 GiB 8300 Linux filesystem Command (? for help): w Final checks complete. About to write GPT data. THIS WILL OVERWRITE EXISTING PARTITIONS!! Do you want to proceed? (Y/N): y OK; writing new GUID partition table (GPT) to /dev/sdc. Unable to save backup partition table! Perhaps the 'e' option on the experts' menu will resolve this problem. Warning! An error was reported when writing the partition table! This error MIGHT be harmless, or the disk might be damaged! Checking it is advisable. Command (? for help): ###After partition the disk more dmesg output: [ 91.164748] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 91.164762] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 91.164770] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 91.164778] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 20 00 [ 91.164784] blk_update_request: I/O error, dev sdc, sector 0 [ 92.914049] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 92.914062] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 92.914068] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 92.914076] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 92.914081] blk_update_request: I/O error, dev sdc, sector 0 [ 92.914089] Buffer I/O error on dev sdc, logical block 0, async page read [ 94.666849] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 94.666862] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 94.666868] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 94.666875] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 94.666881] blk_update_request: I/O error, dev sdc, sector 0 [ 94.666889] Buffer I/O error on dev sdc, logical block 0, async page read [ 96.417321] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 96.417335] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 96.417341] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 96.417349] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 96.417355] blk_update_request: I/O error, dev sdc, sector 0 [ 96.417363] Buffer I/O error on dev sdc, logical block 0, async page read [ 98.165583] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 98.165597] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 98.165603] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 98.165611] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 98.165617] blk_update_request: I/O error, dev sdc, sector 0 [ 98.165625] Buffer I/O error on dev sdc, logical block 0, async page read [ 99.910641] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 99.910654] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 99.910661] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 99.910668] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 99.910674] blk_update_request: I/O error, dev sdc, sector 0 [ 99.910683] Buffer I/O error on dev sdc, logical block 0, async page read [ 101.658822] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 101.658834] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 101.658841] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 101.658849] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 101.658855] blk_update_request: I/O error, dev sdc, sector 0 [ 101.658863] Buffer I/O error on dev sdc, logical block 0, async page read [ 103.403756] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 103.403769] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 103.403776] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 103.403784] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 103.403790] blk_update_request: I/O error, dev sdc, sector 0 [ 103.403799] Buffer I/O error on dev sdc, logical block 0, async page read [ 103.403863] ldm_validate_partition_table(): Disk read failed. [ 105.156930] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 105.156944] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 105.156950] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 105.156958] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f f8 00 00 01 00 [ 105.156964] blk_update_request: I/O error, dev sdc, sector 15564792 [ 105.156974] Buffer I/O error on dev sdc, logical block 1945599, async page read [ 106.913502] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 106.913516] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 106.913522] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 106.913530] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 106.913536] blk_update_request: I/O error, dev sdc, sector 0 [ 106.913545] Buffer I/O error on dev sdc, logical block 0, async page read [ 108.663070] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 108.663084] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 108.663092] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 108.663100] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 108.663107] blk_update_request: I/O error, dev sdc, sector 0 [ 108.663116] Buffer I/O error on dev sdc, logical block 0, async page read [ 110.413625] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 110.413638] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 110.413644] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 110.413652] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 110.413658] blk_update_request: I/O error, dev sdc, sector 0 [ 110.413666] Buffer I/O error on dev sdc, logical block 0, async page read [ 110.413727] sdc: unable to read partition table [ 112.175660] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 112.175674] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 112.175681] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 112.175688] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f 80 00 00 08 00 [ 112.175695] blk_update_request: I/O error, dev sdc, sector 15564672 [ 113.926928] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 113.926942] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 113.926950] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 113.926958] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f 80 00 00 08 00 [ 113.926965] blk_update_request: I/O error, dev sdc, sector 15564672 [ 113.926974] Buffer I/O error on dev sdc, logical block 1945584, async page read [ 127.996779] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 127.996793] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 127.996800] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 127.996809] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f d8 00 00 08 00 [ 127.996815] blk_update_request: I/O error, dev sdc, sector 15564760 [ 129.751457] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 129.751471] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 129.751479] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 129.751487] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 129.751493] blk_update_request: I/O error, dev sdc, sector 0 [ 129.751502] Buffer I/O error on dev sdc, logical block 0, async page read [ 131.503084] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 131.503101] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 131.503110] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 131.503118] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 131.503125] blk_update_request: I/O error, dev sdc, sector 0 [ 131.503134] Buffer I/O error on dev sdc, logical block 0, async page read [ 131.503176] ldm_validate_partition_table(): Disk read failed. [ 133.251368] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 133.251384] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 133.251392] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 133.251400] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 133.251407] blk_update_request: I/O error, dev sdc, sector 0 [ 133.251416] Buffer I/O error on dev sdc, logical block 0, async page read [ 135.002936] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 135.002951] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 135.002959] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 135.002967] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 135.002974] blk_update_request: I/O error, dev sdc, sector 0 [ 135.002983] Buffer I/O error on dev sdc, logical block 0, async page read [ 136.755618] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 136.755633] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 136.755641] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 136.755650] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 00 00 00 00 00 08 00 [ 136.755657] blk_update_request: I/O error, dev sdc, sector 0 [ 136.755667] Buffer I/O error on dev sdc, logical block 0, async page read [ 136.755727] sdc: unable to read partition table [ 138.514619] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 138.514634] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 138.514642] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 138.514650] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f 80 00 00 08 00 [ 138.514657] blk_update_request: I/O error, dev sdc, sector 15564672 [ 140.264795] sd 7:0:0:0: [sdc] UNKNOWN(0x2003) Result: hostbyte=0x00 driverbyte=0x08 [ 140.264809] sd 7:0:0:0: [sdc] Sense Key : 0xb [current] [ 140.264816] sd 7:0:0:0: [sdc] ASC=0x47 ASCQ=0x1 [ 140.264824] sd 7:0:0:0: [sdc] CDB: opcode=0x28 28 00 00 ed 7f 80 00 00 08 00 [ 140.264831] blk_update_request: I/O error, dev sdc, sector 15564672 [ 140.264840] Buffer I/O error on dev sdc, logical block 1945584, async page read -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html