[  870.755010] usb 1-2: new high-speed USB device number 3 using ehci-pci
[  870.898714] usb-storage 1-2:1.0: USB Mass Storage device detected
[  870.898993] scsi host6: usb-storage 1-2:1.0
[  872.088399] scsi 6:0:0:0: Direct-Access     ADATA    USB Flash Drive  1100 PQ: 0 ANSI: 6
[  872.090586] sd 6:0:0:0: [sdc] 30310400 512-byte logical blocks: (15.5 GB/14.5 GiB)
[  872.091799] sd 6:0:0:0: [sdc] Write Protect is off
[  872.091803] sd 6:0:0:0: [sdc] Mode Sense: 43 00 00 00
[  872.092931] sd 6:0:0:0: [sdc] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[  872.100645]  sdc: sdc1
[  872.105668] sd 6:0:0:0: [sdc] Attached SCSI removable disk
[  902.842978] usb 1-2: reset high-speed USB device number 3 using ehci-pci
[  908.163136] usb 1-2: device descriptor read/64, error -110
[  923.737174] usb 1-2: device descriptor read/64, error -110
[  923.957175] usb 1-2: reset high-speed USB device number 3 using ehci-pci
[  924.093787] usb 1-2: device descriptor read/64, error -71
[  924.337179] usb 1-2: device descriptor read/64, error -71
[  924.557202] usb 1-2: reset high-speed USB device number 3 using ehci-pci
[  924.983871] usb 1-2: device not accepting address 3, error -71
[  925.117210] usb 1-2: reset high-speed USB device number 3 using ehci-pci
[  925.543895] usb 1-2: device not accepting address 3, error -71
[  925.544133] usb 1-2: USB disconnect, device number 3
[  925.560584] sd 6:0:0:0: [sdc] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
[  925.560590] sd 6:0:0:0: [sdc] tag#0 CDB: opcode=0x28 28 00 01 ce 7d 28 00 00 30 00
[  925.560593] blk_update_request: I/O error, dev sdc, sector 30309672
[  925.561237] sd 6:0:0:0: [sdc] tag#0 UNKNOWN(0x2003) Result: hostbyte=0x01 driverbyte=0x00
[  925.561239] sd 6:0:0:0: [sdc] tag#0 CDB: opcode=0x28 28 00 01 ce 7d 60 00 00 50 00
[  925.561239] blk_update_request: I/O error, dev sdc, sector 30309728
[  925.727238] usb 1-2: new high-speed USB device number 4 using ehci-pci
[  925.863907] usb 1-2: device descriptor read/64, error -71
[  926.107229] usb 1-2: device descriptor read/64, error -71
[  926.327205] usb 1-2: new high-speed USB device number 5 using ehci-pci
[  926.463931] usb 1-2: device descriptor read/64, error -71
[  926.707275] usb 1-2: device descriptor read/64, error -71
[  926.927284] usb 1-2: new high-speed USB device number 6 using ehci-pci
[  927.353966] usb 1-2: device not accepting address 6, error -71
[  927.467304] usb 1-2: new high-speed USB device number 7 using ehci-pci
[  927.893928] usb 1-2: device not accepting address 7, error -71
[  927.893968] usb usb1-port2: unable to enumerate USB device
[  928.167332] usb 8-2: new full-speed USB device number 3 using ohci-pci
[  928.310672] usb 8-2: device descriptor read/64, error -62
[  928.560682] usb 8-2: device descriptor read/64, error -62
[  928.807360] usb 8-2: new full-speed USB device number 4 using ohci-pci
[  928.950697] usb 8-2: device descriptor read/64, error -62
[  929.200708] usb 8-2: device descriptor read/64, error -62
[  929.447405] usb 8-2: new full-speed USB device number 5 using ohci-pci
[  929.860735] usb 8-2: device not accepting address 5, error -62
[  930.000741] usb 8-2: new full-speed USB device number 6 using ohci-pci
[  930.414088] usb 8-2: device not accepting address 6, error -62
[  930.414126] usb usb8-port2: unable to enumerate USB device