'bnx2x_attn_int_deassertedX - FATAL error from CFC' on SolidFire nodes

Applies to

• NetApp SolidFire storage nodes
• NetApp Element Software (11.7 and below)
• NIC driver bnx2x version 1.712.30-0

Issue

Kernel files (kern.log*) and (sys.log) running full with: 

• [bnx2x_attn_int_deasserted(X):4219(eth<X>)]CFC hw attention 0x2
• [bnx2x: [bnx2x_attn_int_deasserted(X):(XXXX)(eth<X>)]FATAL error from CFC
   

Typically this will result in the following error in NetApp SolidFire Active IQ:

• fileSystemCapacityLow - File System /var/log has <X>% free space (below 5%). Please contact support.

Additional (possible) errors if the issue is not addressed in a timely manner:

• nodeOffline - The SolidFire Application cannot communicate with node ID <X>.
• unresponsiveService - A master service is not responding.
• memoryUsageThreshold - System memory is very low. Adding additional nodes or manually purging deleted volumes may help reduce memory usage.
• authenticationServiceFault - Unable to determine status of Element Auth container on node 2. Please contact support if this problem persists.