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Cisco Bug: CSCup68651 - Enhancement of software scrubbing the pse memory for SBE interrupts-

Last Modified

Jun 21, 2020

Products (18)

  • Cisco Carrier Routing System
  • Cisco CRS-1 Line Card Chassis (Dual)
  • Cisco CRS-X 8-Slot Single-Shelf System
  • Cisco CRS-3 Multishelf System
  • Cisco CRS-X Multishelf System
  • Cisco CRS-1 16-Slot Line Card Chassis
  • Cisco CRS-1 Line Card Chassis (Multi)
  • Cisco CRS-1 4-Slot Single-Shelf System
  • Cisco IOS XR Software
  • Cisco CRS-3 8-Slot Single-Shelf System
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Known Affected Releases

5.1.3.LC

Description (partial)

Symptom:
In certain conditions the PSE memory gets stuck with single bit errors (SBE) and a message is logged 
similar to:
pse_pogo_driver[244]: %PLATFORM-CIH-5-ASIC_ERROR_SCRUB_THRESH : pse[1]: A sbe error has occurred 
causing  data corrected. 0x12470009  Threshold has been exceeded

Conditions:
When SBE interupts cross a threshold they start logging these messages. An SBE is totally benign since it 
will be corrected by the HW whenever the memory is ready. This error is single bit error and hardware 
corrects it itself without any user intervention required.
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Bug Details Include

  • Full Description (including symptoms, conditions and workarounds)
  • Status
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