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Diagnostic panic on node using FlexArray

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ontap-9
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hw
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Applies to

  • ONTAP 9
  • FlexArray
  • Brocade Fiber Channel switch

Issue

  • Nodes go out of quorum.
  • Node encounters a diagnosic panic:

PANIC: DIAGNOSTIC PANIC - System encountered a forced panic condition in SK process config_thread on release 9.16.1P6 (C) on Tue Aug 26 08:54:30 UTC 2025C

  • CRC errors are seen on the output of portshow on one fiber channel switch port:

Interrupts:        7004 Link_failure: 70        Frjt:         0
Unknown:           0    Loss_of_sync: 0 Fbsy:         0
Lli:               7004 Loss_of_sig:  589
Proc_rqrd:         10202        Protocol_err: 0
Timed_out:         0    Invalid_word: 376146324
Tx_unavail:        0    Invalid_crc:  340021
Delim_err:         219  Address_err:  0
Lr_in:             1611 Ols_in:       0
Lr_out:            553  Ols_out:      0
Cong_Prim_in:       0
Nos_in:            60   Nos_out:      59

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