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PANIC: Uncorrectable Machine Check Error at CPUX

  1. Last updated
    May 13, 2025
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Category:
aff-series
Specialty:
HW
Last Updated:
5/13/2025, 10:29:00 AM

Applies to

  • All AFF platform
  • All FAS platform
  • ONTAP 9

Issue

Controller panics due to an uncorrectable machine check error:

callhome.sfo.takeover.panic: Call home for CONTROLLER TAKEOVER COMPLETE PANIC

sk.panic: Panic String: Uncorrectable Machine Check Error at CPU35. SKL_DCU Error: STATUS<0xbb80000000000174>(VALID,UC,EN,MISCV,PCC,S,AR,Corrected_Error_Status_Indicator(0),CORRECTED_ERR_COUNT(0),MSCOD(0),MCACOD(0x174))
MISC<0x0000000000000086>(ADDRMODE(0x2),RECADDRLSB(0x6)) in SK process wafl_exempt19 on release 9.7P11 (C) on Sat, Mar 06 13:23:48 2021 +0100

PANIC: Uncorrectable Machine Check Error at CPU26. SKL_IIO Error: STATUS<0xbb80000000000e0b>(VALID,UC,EN,MISCV,PCC,S,AR,CORR_ERR_STATUS(0),CORR_ERR_CNT(0),MSCOD(0),MCACOD(0xe0b))MISC<0x00000000ae000000>(UCR_BUS_LOG(174),UCR_DEVICE_LOG(0),UCR_FUNCTION_LOG(0),UCR_SEGMENT_LOG(0))IIO Machine Check from device(s):RPT(174,0,0):ErrSrcID(CorrSrc(0),UCorrSrc(0xae00)), Br[2030](174,0,0): Link down. in process idle

 

 

 

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