I can't seem to find the info I'm looking for in google, hopefully someone has dealt with these sorts of issues in the past. I have a machine where my messages file keeps getting lines like: Mar 13 18:34:43 nemesis kernel: usb 2-6: reset high speed USB device number 2 using ehci_hcd Mar 13 18:34:57 nemesis kernel: usb 2-6: reset high speed USB device number 2 using ehci_hcd Mar 13 18:35:07 nemesis kernel: usb 2-6: reset high speed USB device number 2 using ehci_hcd Mar 13 18:35:09 nemesis kernel: usb 2-6: reset high speed USB device number 2 using ehci_hcd Mar 13 18:36:35 nemesis kernel: usb 2-6: reset high speed USB device number 2 using ehci_hcd I assumed the issue was my usb3 drive, disconnected... errors persist. I run lsusb and get [root at nemesis ~]# lsusb Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 004 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 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub Bus 002 Device 002: ID 0bda:0151 Realtek Semiconductor Corp. Mass Storage Device (Multicard Reader) Bus 003 Device 002: ID 413c:1003 Dell Computer Corp. Keyboard Hub Bus 004 Device 002: ID 0764:0501 Cyber Power System, Inc. CP1500 AVR UPS Bus 004 Device 003: ID 045e:001e Microsoft Corp. IntelliMouse Explorer Bus 003 Device 003: ID 413c:2010 Dell Computer Corp. Keyboard Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 002 Device 003: ID 0781:5567 SanDisk Corp. Cruzer Blade and looking in /proc/bus/usb, I don't find anything that looks like a direct mapping. does anyone have some pointers for translating these device numbers/paths to the physical hardware? thanks. -- Even the Magic 8 ball has an opinion on email clients: Outlook not so good.