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Cisco Bug: CSCvv11949 - 9115 AP stuck in reboot loop due to "BUG: spinlock lockup suspected on CPU#n"

Last Modified

Aug 04, 2020

Products (1)

  • Cisco Aironet 1850 Series Access Points

Known Affected Releases

8.10(122.0)

Description (partial)

Symptom:
Two symptoms -

 - 9115 AP stuck in reboot loop with tracebacks.
 - AP doesn't get CDP of Switch (even though Switch gets the AP's CDP). Error "MDIO Error: MDIO got failure status on phy 6" occasionally appears on console.

Conditions:
Issue reported on 8.10.113, confirmed on 8.10.122.
Reported on 1852, but no proper crash logs detected, and low frequency of reported crashes.
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