键盘不停假死

Question

U24，一天出现五六次键盘假死，做着工作突然按键盘就没反应了。把键盘拔下来重新插拔一下就好了。部分日志如下，大家能看出问题不？
Nov 16 11:34:38 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/hub@2/keyboard@4 (hid4) offline
Nov 16 11:34:38 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/hub@2 (hubd2) offline
Nov 16 11:34:38 scada2 rootnex: [ID 349649 kern.info] xsvc0 at root
Nov 16 11:34:38 scada2 genunix: [ID 936769 kern.info] xsvc0 is /xsvc
Nov 16 11:34:39 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,100e) operating at full speed (USB 1.x) on USB 1.10 root hub: hub@2, hubd2 at bus address 3
Nov 16 11:34:39 scada2 genunix: [ID 936769 kern.info] hubd2 is /pci@0,0/pci108e,5351@1d/hub@2
Nov 16 11:34:39 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/hub@2 (hubd2) online
Nov 16 11:34:40 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,a2) operating at full speed (USB 1.x) on USB 2.0 external hub: keyboard@4, hid4 at bus address 4
Nov 16 11:34:40 scada2 usba: [ID 349649 kern.info]         Sun USB Keyboard
Nov 16 11:34:40 scada2 genunix: [ID 936769 kern.info] hid4 is /pci@0,0/pci108e,5351@1d/hub@2/keyboard@4
Nov 16 11:34:40 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/hub@2/keyboard@4 (hid4) online
Nov 16 11:34:40 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/mouse@1 (hid5) offline
Nov 16 11:34:41 scada2 usba: [ID 912658 kern.info] USB 1.10 device (usb566,4006) operating at low speed (USB 1.x) on USB 1.10 root hub: mouse@1, hid5 at bus address 2
Nov 16 11:34:41 scada2 usba: [ID 349649 kern.info]         USB Mouse
Nov 16 11:34:41 scada2 genunix: [ID 936769 kern.info] hid5 is /pci@0,0/pci108e,5351@1d/mouse@1
Nov 16 11:34:41 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/mouse@1 (hid5) online
Nov 16 12:00:08 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/hub@2/keyboard@4 (hid4) offline
Nov 16 12:00:08 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d/hub@2 (hubd2) offline
Nov 16 12:00:14 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,100e) operating at full speed (USB 1.x) on USB 1.10 root hub: hub@1, hubd3 at bus address 2
Nov 16 12:00:14 scada2 genunix: [ID 936769 kern.info] hubd3 is /pci@0,0/pci108e,5351@1d,2/hub@1
Nov 16 12:00:14 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) online
Nov 16 12:00:15 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,a2) operating at full speed (USB 1.x) on USB 2.0 external hub: keyboard@4, hid6 at bus address 3
Nov 16 12:00:15 scada2 usba: [ID 349649 kern.info]         Sun USB Keyboard
Nov 16 12:00:15 scada2 genunix: [ID 936769 kern.info] hid6 is /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4
Nov 16 12:00:15 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) online
Nov 16 14:41:22 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) offline
Nov 16 14:41:22 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) offline
Nov 16 14:41:25 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,100e) operating at full speed (USB 1.x) on USB 1.10 root hub: hub@1, hubd3 at bus address 2
Nov 16 14:41:25 scada2 genunix: [ID 936769 kern.info] hubd3 is /pci@0,0/pci108e,5351@1d,2/hub@1
Nov 16 14:41:25 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) online
Nov 16 14:41:25 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,a2) operating at full speed (USB 1.x) on USB 2.0 external hub: keyboard@4, hid6 at bus address 3
Nov 16 14:41:25 scada2 usba: [ID 349649 kern.info]         Sun USB Keyboard
Nov 16 14:41:25 scada2 genunix: [ID 936769 kern.info] hid6 is /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4
Nov 16 14:41:25 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) online
Nov 16 14:43:09 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) offline
Nov 16 14:43:09 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) offline
Nov 16 14:43:16 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,100e) operating at full speed (USB 1.x) on USB 1.10 root hub: hub@1, hubd3 at bus address 2
Nov 16 14:43:16 scada2 genunix: [ID 936769 kern.info] hubd3 is /pci@0,0/pci108e,5351@1d,2/hub@1
Nov 16 14:43:16 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) online
Nov 16 14:43:16 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,a2) operating at full speed (USB 1.x) on USB 2.0 external hub: keyboard@4, hid6 at bus address 3
Nov 16 14:43:16 scada2 usba: [ID 349649 kern.info]         Sun USB Keyboard
Nov 16 14:43:16 scada2 genunix: [ID 936769 kern.info] hid6 is /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4
Nov 16 14:43:16 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) online
Nov 16 15:52:31 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) offline
Nov 16 15:52:31 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) offline
Nov 16 15:52:37 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,100e) operating at full speed (USB 1.x) on USB 1.10 root hub: hub@1, hubd3 at bus address 2
Nov 16 15:52:37 scada2 genunix: [ID 936769 kern.info] hubd3 is /pci@0,0/pci108e,5351@1d,2/hub@1
Nov 16 15:52:37 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1 (hubd3) online
Nov 16 15:52:38 scada2 usba: [ID 912658 kern.info] USB 2.0 device (usb430,a2) operating at full speed (USB 1.x) on USB 2.0 external hub: keyboard@4, hid6 at bus address 3
Nov 16 15:52:38 scada2 usba: [ID 349649 kern.info]         Sun USB Keyboard
Nov 16 15:52:38 scada2 genunix: [ID 936769 kern.info] hid6 is /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4
Nov 16 15:52:38 scada2 genunix: [ID 408114 kern.info] /pci@0,0/pci108e,5351@1d,2/hub@1/keyboard@4 (hid6) online