Guest

Preview Tool

Cisco Bug: CSCuq70724 - DIMM I2C controller should reset when controller gets stuck

Last Modified

Mar 04, 2018

Products (1)

  • Cisco Unified Computing System

Known Affected Releases

2.1(1a)B 2.1(2a)B 2.1(3a)B 2.2(1a)B 2.2(2c)BS26

Description (partial)

Symptom:
The chassis FAN speeds will spin at 100% because the chassis/IOM cannot obtain DIMM temperature readings from a blade. When in this state, the blade can no longer obtain DIMM temperature sensors.

Conditions:
An invalid I2C transaction occurred on the DIMM I2C bus. These transactions often come from software running on the x86 host.
Bug details contain sensitive information and therefore require a Cisco.com 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.