qeth NIC encounters error and cannot recover

Solution Unverified - Updated -

Issue

  • qeth NIC encounters error and cannot recover
  • IBM S390 z/VM network interface logs errors like so, and must be rebooted to get networking back:
qeth 0.0.0700: A recovery process has been started for the device
qeth 0.0.0700: CHID: ff00 CHPID: 0
qeth 0.0.0700: The qeth device driver failed to recover an error on the device
qeth 0.0.0700: The qeth device driver failed to recover an error on the device

Environment

  • Red Hat Enterprise Linux 8.5
  • IBM s390x with qeth network interface
  • Network monitoring with ethtool or SNMP (snmpd)

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