Intel igb driver logs "unexpected SYS WRAP"

Solution Verified - Updated -

Issue

  • The Intel igb driver logs unexpected SYS WRAP often:
Apr 28 15:18:45 hostname kernel: igb 0000:01:00.1: unexpected SYS WRAP
Apr 28 15:37:05 hostname kernel: igb 0000:01:00.1: unexpected SYS WRAP
Apr 28 15:55:25 hostname kernel: igb 0000:01:00.1: unexpected SYS WRAP

Environment

  • Red Hat Enterprise Linux 6.7
  • kernel-2.6.32-573.22.1.el6.x86_64
  • Intel Corporation I350 Gigabit Network Connection (rev 01) NIC using igb driver
  • PTP Precision Time Protocol

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