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Cisco Bug: CSCvu79802 - Cat 9300/9400 crash upon a POE linecard OIR event

Last Modified

Sep 01, 2020

Products (1)

  • Cisco Catalyst 9300 Series Switches

Known Affected Releases

17.4.1

Description (partial)

Symptom:
Catalyst 9300 or 9400 may crash during an OIR event of a POE linecard while ilpower debugs are enabled.
OIR can be a physical reseat of the card or running "hw-module subslot X/0 oir power-cycle force"

Crashinfo file will be created with logs similar to these:

Exception to IOS Thread:

Frame pointer 0x7FE1A8A10CD0, PC = 0x55576DDC8888

UNIX-EXT-SIGNAL: Segmentation fault(11), Process = Inline Power

%PMAN-5-EXITACTION: R1/0: pvp: Process manager is exiting: Critical process linux_iosd_image fault on rp_1_0 (rc=139)
%PMAN-3-PROCESS_NOTIFICATION: R1/0: pvp: System report /crashinfo/full3e_dut1_RP_1-system-report_RP_1_20200625-183627-PDT.tar.gz (size: 52498 KB) generated

Conditions:
Running one of POE debugs listed below and performing OIR of the linecard.

debug ilpower cdp, 
debug ilpower upoe,
debug ilpower controller,
debug ilpower event,
debug ilpower port,
debug ilpower ha,
debug ilpower sense,

This is a timing issue and can happen on either 9300/9400 (any switch/LC)
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