Why messages like following are seen in logs "udevd-work: error changing netif name 'ethx' to 'ethx': Device or resource busy" ?

Solution Verified - Updated -

Issue

  • There are many messages in system log file like below;
Aug 18 16:06:20 HOSTNAME udevd-work[14557]: error changing netif name 'eth4' to 'eth2': Device or resource busy
Aug 18 16:06:32 HOSTNAME multipathd: sdaa: add path (uevent)
Aug 18 16:06:32 HOSTNAME multipathd: sdaa: spurious uevent, path already in pathvec
Aug 18 16:06:32 HOSTNAME multipathd: sdz: add path (uevent)
Aug 18 16:06:32 HOSTNAME multipathd: sdz: spurious uevent, path already in pathvec
Aug 18 16:06:32 HOSTNAME udevd-work[17158]: error changing netif name 'eth4' to 'eth2': Device or resource busy
Aug 18 16:06:32 HOSTNAME udevd-work[17156]: error changing netif name 'eth1' to 'eth0': Device or resource busy
  • What could be the reason for generation for such messages and how to avoid it ?
  • Are these messages harmful ?

Environment

  • Red Hat Enterprise Linux 6
  • udev

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