Preview Tool

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


Description (partial)

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.

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.
Bug details contain sensitive information and therefore require a account to be viewed.

Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
  • Severity
  • Known Fixed Releases
  • Related Community Discussions
  • Number of Related Support Cases
Bug information is viewable for customers and partners who have a service contract. Registered users can view up to 200 bugs per month without a service contract.