[ 28.678162] usb 1-1: device descriptor read/64, error -110
[ 44.118152] usb 1-1: device descriptor read/64, error -110
[ 44.388157] usb 1-1: new high-speed USB device number 3 using ehci-pci
[ 49.638175] usb 1-1: device descriptor read/64, error -110
[ 65.078169] usb 1-1: device descriptor read/64, error -110
[ 65.198187] usb usb1-port1: attempt power cycle
[ 65.688158] usb 1-1: new high-speed USB device number 4 using ehci-pci
[ 76.268157] usb 1-1: device not accepting address 4, error -110
[ 76.418157] usb 1-1: new high-speed USB device number 5 using ehci-pci
[ 86.988155] usb 1-1: device not accepting address 5, error -110
[ 86.994078] usb usb1-port1: unable to enumerate USB device
[ 87.178154] usb 1-3: new high-speed USB device number 6 using ehci-pci
[ 87.308155] usb 2-1: new full-speed USB device number 2 using uhci_hcd
[ 92.358151] usb 1-3: device descriptor read/64, error -110
[ 103.018164] usb 2-1: device descriptor read/64, error -110
[ 107.798163] usb 1-3: device descriptor read/64, error -110
[ 108.068164] usb 1-3: new high-speed USB device number 7 using ehci-pci
[ 113.318170] usb 1-3: device descriptor read/64, error -110
[ 119.018164] usb 2-1: device descriptor read/64, error -110
[ 119.288165] usb 2-1: new full-speed USB device number 3 using uhci_hcd
[ 128.758168] usb 1-3: device descriptor read/64, error -110
[ 128.878172] usb usb1-port3: attempt power cycle
[ 129.368180] usb 1-3: new high-speed USB device number 8 using ehci-pci
[ 135.018156] usb 2-1: device descriptor read/64, error -110
[ 139.948155] usb 1-3: device not accepting address 8, error -110
[ 140.098156] usb 1-3: new high-speed USB device number 9 using ehci-pci
问题发生的可能原因：USB相关的模块是ehci_hcd模块没有加载正常，也就是说操作系统在识别USB缺少主板BIOS程序的识别支持
处理方案，进入BIOS的设置，把关于USB设置中关于EHCI参数启用支持。重启后，加载正常
应该是与USB口有关的设备文件出错，错误与读取操作有关。110？是不是被美国人做了手脚？
usb 2-1: device not accepting address 4, error -110
[ 162.564660] usb 2-1: new full-speed USB device number 5 using uhci_hcd
[ 166.844667] usb 3-1: device descriptor read/64, error -110
[ 173.414664] usb 2-1: device not accepting address 5, error -110
[ 173.420580] usb usb2-port1: unable to enumerate USB device
[ 182.844657] usb 3-1: device descriptor read/64, error -110
[ 183.114660] usb 3-1: new full-speed USB device number 3 using uhci_hcd
[ 198.844658] usb 3-1: device descriptor read/64, error -110
[ 214.844658] usb 3-1: device descriptor read/64, error -110
[ 214.964673] usb usb3-port1: attempt power cycle
[ 215.454653] usb 3-1: new full-speed USB device number 4 using uhci_hcd
[ 226.413088] usb 3-1: device not accepting address 4, error -110
[ 226.563049] usb 3-1: new full-speed USB device number 5 using uhci_hcd
[ 237.409972] usb 3-1: device not accepting address 5, error -110
[ 237.415881] usb usb3-port1: unable to enumerate USB device
[ 1670.363740] usb 1-4: new high-speed USB device number 10 using ehci-pci
[ 1675.593650] usb 1-4: device descriptor read/64, error -110
[ 1691.033393] usb 1-4: device descriptor read/64, error -110
[ 1691.303391] usb 1-4: new high-speed USB device number 11 using ehci-pci
[ 1696.553302] usb 1-4: device descriptor read/64, error -110
[ 1711.993047] usb 1-4: device descriptor read/64, error -110
[ 1712.113058] usb usb1-port4: attempt power cycle
[ 1712.603038] usb 1-4: new high-speed USB device number 12 using ehci-pci
[ 1723.182863] usb 1-4: device not accepting address 12, error -110
[ 1723.332861] usb 1-4: new high-speed USB device number 13 using ehci-pci
[ 1733.902686] usb 1-4: device not accepting address 13, error -110
[ 1733.908680] usb usb1-port4: unable to enumerate USB device
[ 1734.222681] usb 3-2: new full-speed USB device number 6 using uhci_hcd
[ 1750.052418] usb 3-2: device descriptor read/64, error -110
[ 1766.052152] usb 3-2: device descriptor read/64, error -110
[ 1766.322149] usb 3-2: new full-speed USB device number 7 using uhci_hcd
[ 1782.051888] usb 3-2: device descriptor read/64, error -110
[ 2604.714396] usb 1-4: new high-speed USB device number 14 using ehci-pci
[ 2609.965767] usb 1-4: device descriptor read/64, error -110
[ 2625.409626] usb 1-4: device descriptor read/64, error -110
[ 2625.679692] usb 1-4: new high-speed USB device number 15 using ehci-pci
[ 2630.930935] usb 1-4: device descriptor read/64, error -110
[ 2646.374473] usb 1-4: device descriptor read/64, error -110
[ 2646.494510] usb usb1-port4: attempt power cycle
[ 2646.984607] usb 1-4: new high-speed USB device number 16 using ehci-pci
[ 2657.566910] usb 1-4: device not accepting address 16, error -110
[ 2657.716943] usb 1-4: new high-speed USB device number 17 using ehci-pci
[ 2668.289145] usb 1-4: device not accepting address 17, error -110
[ 2668.295139] usb usb1-port4: unable to enumerate USB device
[ 2668.609211] usb 3-2: new full-speed USB device number 8 using uhci_hcd
[ 2684.452367] usb 3-2: device descriptor read/64, error -110
[ 2700.455394] usb 3-2: device descriptor read/64, error -110
[ 2700.725451] usb 3-2: new full-speed USB device number 9 using uhci_hcd
[ 2716.458283] usb 3-2: device descriptor read/64, error -110
[ 2732.461038] usb 3-2: device descriptor read/64, error -110
[ 2732.581070] usb usb3-port2: attempt power cycle
[ 2733.071140] usb 3-2: new full-speed USB device number 10 using uhci_hcd
[ 2744.032960] usb 3-2: device not accepting address 10, error -110
[ 2744.182986] usb 3-2: new full-speed USB device number 11 using uhci_hcd
[ 2754.784701] usb 3-2: device not accepting address 11, error -110
[ 2754.790695] usb usb3-port2: unable to enumerate USB device
报的是，“传输完成前超时”，引起超时的原因有很多，最常见的是功率过载。也就是主机无法给pendrive提供充足的电量了。新内核耗电太大引起的。
有检查设备树文件吗