What does the err_code:0101:0091 in the EDAC error mean?

Solution Verified - Updated -


  • What does the err_code:0101:0091 from the following error message mean?
May 5 11:14:15 xxxx kernel: EDAC MC1: 1 CE memory read error on CPU_SrcID#0_MC#1_Chan#1_DIMM#0 (channel:1 slot:0 page:0x15c05 offset:0x780 grain:32 syndrome:0x0 - err_code:0101:0091 socket:0 imc:1 rank:0 bg:0 ba:2 row:2a8 col:158)


  • Red Hat Enterprise Linux 7.9
  • Red Hat Enterprise Linux 8.x
  • Hardware vendor:
    • SuperMicro
    • HP
    • Cisco Systems

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