kernel-packages team mailing list archive

[Mark Preston <emp2008@xxxxxxx>]

The kern.log has this line:

Jul 24 10:41:38 Lexington kernel: [ 6100.207979] hub 1-7:1.0: unable to
enumerate USB device on port 3

repeat without stopping while the computer is powered up. The time
changes but the message repeats over and over.

mark@Lexington:~$ uname -r
3.8.0-26-generic

however this is Xubuntu.

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https://bugs.launchpad.net/bugs/256767

Title:
  USB devices work, but constant syslog errors "unable to enumerate USB
  device on port 5"

Status in “linux” package in Ubuntu:
  Won't Fix

Bug description:
  1) lsb_release -rd
  Description:    Ubuntu intrepid (development branch)
  Release:        8.10

  2) apt-cache policy linux
  linux:
    Installed: (none)
    Candidate: 2.6.26.5.7
    Version table:
       2.6.26.5.7 0
          500 http://us.archive.ubuntu.com intrepid/restricted Packages

  3) I expect for the system to boot up without errors.

  4) The system boots up and endlessly repeats:

  [...]
  [  595.878673] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  596.410662] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  596.930656] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  597.442648] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  597.966870] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  598.474842] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  599.002838] hub 4-0:1.0: unable to enumerate USB device on port 5
  [  599.518833] hub 4-0:1.0: unable to enumerate USB device on port 5
  [...]

  <b>Updates</b>

  This bug is still present in Ubuntu 9.04 and Ubuntu 9.10, for example
  in 2.6.31-14-generic-pae. It makes consoles almost impossible to use,
  and causes a lot of writes due to the constant updating of
  /var/log/syslog.

  A suggestion of the cause is at http://lkml.org/lkml/2008/10/24/209

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