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show region
CF-860
Cisco IOS Configuration Fundamentals Command Reference
July 2008
If the address reported by the bus error does not fall within the ranges displayed in the show region
output, this means that the router was trying to access an address that is not valid. This indicates that it
is a Cisco IOS software problem.
More detailed information is available on Cisco.com in Tech Note #7949, Troubleshooting Bus Error
Crashes.
Examples The following is sample output from the show region command:
Router# show region
Region Manager:
Start End Size(b) Class Media Name
0x40000000 0x40001FFF 8192 Iomem REG qa
0x40002000 0x401FFFFF 2088960 Iomem R/W memd
0x48000000 0x48001FFF 8192 Iomem REG qa:writethru
0x50002000 0x501FFFFF 2088960 Iomem R/W memd:(memd_bitswap)
0x58002000 0x581FFFFF 2088960 Iomem R/W memd:(memd_uncached)
0x60000000 0x6FFFFFFF 268435456 Local R/W main
0x600109C8 0x611BEBE1 18539034 IText R/O main:text
0x611C0000 0x61642C7F 4729984 IData R/W main:data
0x61642C80 0x6186607F 2241536 IBss R/W main:bss
0x61866080 0x6188607F 131072 Local R/W main:fastheap
0x61886080 0x6FFFFFFF 242720640 Local R/W main:heap
0x80000000 0x87FFFFFF 134217728 Local R/W main:(main_k0)
0x88000000 0x88001FFF 8192 Iomem REG qa_k0
0x88002000 0x881FFFFF 2088960 Iomem R/W memd:(memd_k0)
0xA0000000 0xA7FFFFFF 134217728 Local R/W main:(main_k1)
0xA8000000 0xA8001FFF 8192 Iomem REG qa_k1
0xA8002000 0xA81FFFFF 2088960 Iomem R/W memd:(memd_k1)
Related Commands Command Description
show context Displays information stored in NVRAM when an unexpected system reload
(system exception) occurs.
show memory Displays detailed memory statistics for the system.
show version Shows hardware and software information for the system.