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Cisco Bug: CSCun69369 - Bigsur FAULTY slot 0 asic 0, bigsur_stm_dma_monitor_timer_hdlr error

Last Modified

Jun 11, 2020

Products (1)

  • Cisco Nexus 6000 Series Switches

Known Affected Releases

7.0(1)N1(0.144)

Description (partial) 

Symptom:
On a Nexus 6000/5600, an ASIC might get declared faulty and following log messages can be seen:

%USER-2-SYSTEM_MSG: Bigsur FAULTY slot 0 asic 3, bigsur_stm_dma_monitor_timer_hdlr  - bigsurusd %BIGSURUSD-3-BIGSUR_SYSLOG_ERROR: EDMA update channel faulty on slot 0 asic 3 

Several ports on the ASIC will be impacted due to this channel being stuck.

Conditions:
Seen on N6000/5600 during layer 2 instabilities such as L2 bridging loop.
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