RHEL8.5: panic on nlmsvc_put_lockowner

Solution In Progress - Updated -


RHEL 8.5 host acting as NFS server experienced a panic on NLM code:

[6823679.912979] RIP: 0010:nlmsvc_put_lockowner+0x6/0x80 [lockd]
[6823679.923427] Call Trace:
[6823679.924012]  __nlm4svc_proc_test+0xe8/0x110 [lockd]
[6823679.924674]  svc_process_common+0x64f/0x700 [sunrpc]
[6823679.925273]  ? svc_recv+0x3d0/0x820 [sunrpc]
[6823679.925823]  ? grace_ender+0x20/0x20 [lockd]
[6823679.926388]  svc_process+0xb7/0xf0 [sunrpc]
[6823679.926949]  lockd+0xae/0x190 [lockd]
[6823679.927467]  ? __kthread_parkme+0x4c/0x70
[6823679.927976]  kthread+0x116/0x130
[6823679.928467]  ? kthread_flush_work_fn+0x10/0x10
[6823679.928972]  ret_from_fork+0x1f/0x40


  • RHEL8.5 NFS server
  • GPFS filesystem backing exported shares

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