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Cisco Bug: CSCvt49036 - C800 with multiple 'main' regions do not successfully write all cores via 'exception core-file'

Last Modified

Sep 16, 2020

Products (1)

  • Cisco IOS

Known Affected Releases

15.9

Description (partial)

Symptom:
Corefile for 'main' memory is overwritten when two 'main regions exist:Issue is specific to C800 device.

ROUTER# show region
Region Manager:

      Start         End     Size(b)  Class  Media  Name
 0x00000000  0x1411313F   336671040  Local  R/W    main <<<<< FIRST MAIN REGION
 0x01000000  0x03FFFFFF    50331648  Local  R/W    main:heap
 0x040001B0  0x0AD2118B   114429916  IText  R/O    main:text
 0x0AD22000  0x0F77721F    77943328  IData  R/W    main:data
 0x0F777220  0x101F1913    10987252  IBss   R/W    main:bss
 0x101F1914  0x1411313F    66197548  Local  R/W    main:heap
 0x14113140  0x17BFFFFF    61787840  Iomem  R/W    iomem
 0x17C00000  0x17FFFFFF     4194304  Local  R/W    View_Window_Region
 0x20000000  0x3FFFFFFF   536870912  Local  R/W    main <<<<< SECOND MAIN REGIONG
 0x20000000  0x3FFFFFFF   536870912  Local  R/W    main:heap

Conditions:
This makes troubleshooting events requiring a corefile very difficult.
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