Why does the message EHCI: BIOS handoff failed (BIOS bug?) appear after boot?

Solution Unverified - Updated -


  • Red Hat Enterprise Linux 6


  • Getting below message in /var/log/messages after system boot:
Feb 22 19:06:30 server1 kernel: pci 0000:00:1d.7: EHCI: BIOS handoff failed (BIOS bug?) 01010001
  • What does this message mean?


  • Disable the Legacy USB from the BIOS or upgrade the BIOS.

Root Cause

  • The message means that the EHCI driver could not take control from the BIOS even the device supports BIOS handoff.

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