RHEL: System enumerates and disconnects a USB device indefinitely
Issue
- When connecting an external USB drive to the server, the server fails to recognize the disk
- The following error message is seen in
/var/log/messages
:
Jun 15 04:02:06 server kernel: usb 1-1: new high speed USB device using ehci_hcd and address 58
Jun 15 04:02:06 server kernel: usb 1-1: configuration #1 chosen from 1 choice
Jun 15 04:02:06 server kernel: scsi1981 : SCSI emulation for USB Mass Storage devices
Jun 15 04:02:08 server kernel: usb 1-1: USB disconnect, address 58
Jun 15 04:02:08 server kernel: usb 1-1: new high speed USB device using ehci_hcd and address 59
Jun 15 04:02:08 server kernel: usb 1-1: configuration #1 chosen from 1 choice
Jun 15 04:02:08 server kernel: scsi1982 : SCSI emulation for USB Mass Storage devices
Jun 15 04:02:11 server kernel: usb 1-1: USB disconnect, address 59
Jun 15 04:02:11 server kernel: usb 1-1: new high speed USB device using ehci_hcd and address 60
Jun 15 04:02:11 server kernel: usb 1-1: configuration #1 chosen from 1 choice
Jun 15 04:02:11 server kernel: scsi1983 : SCSI emulation for USB Mass Storage devices
Jun 15 04:02:14 server kernel: usb 1-1: USB disconnect, address 60
- This issue can be also observed in system without a USB drive or card attached
Environment
- Red Hat Enterprise Linux
- USB thumb drive
-
USB card reader
-
It is also seen on HP DL380 G6 systems
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