Cisco Bug: CSCur58188 - i2c clk line read errors logged by PFM
Jun 09, 2020
- Cisco Nexus 3000 Series Switches
Known Affected Releases
Symptom:i2c read failure kernel messages logged in syslog. PFM: nuova_sys_i2c_read_byte_data failed for QS_PCA9539_INST_0 I2C_PCA9539_CMD_IN1: rc = -14 - kernel PFM: detect_lc_module_presence() returned error -14 - kernel PFM: Error while trying to service 0x2aa, err=-14 - kernel In some cases, FAN and PSU might show failed but will be functioning as expected. No known impact to regular port detection and data traffic. Conditions:known to trigger from QSA's or QSFP's. not fully secured to the port or may be seen when connected in a particular position.
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Bug Details Include
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