RHEL6: nfs4_run_state_manager is causing CPU soft lockups
Issue
- Soft lockups happening on NFS client with backtrace containing RIP usually
nfs4_run_state_manager -
Logs contain these messages:
kernel: Error: state manager failed on NFSv4 server <hostname> with error 121
Environment
- Red Hat Enterprise Linux 6 (NFS client)
- NFS4
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