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Cisco Bug: CSCvh58026 - KVM VMFEX may fail to claim interface and reloading driver causes VM and host hang

Last Modified

Sep 14, 2019

Products (1)

  • Cisco UCS Virtual Interface Card

Known Affected Releases

2.1(2.38)

Description (partial)

Symptom:
VM may not detect/claim KVM VMFEX based interface due to devcmd errors
Steps to reload driver such as rmmod/modprobe will cause devcmd errors and hang on VM and Host OS

Conditions:
Issue has been observed with UCS 3.1(3) firmware versions
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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