11-15-2013 04:09 AM - edited 03-07-2019 04:37 PM
Hi Team,
One of our production router got reload and we are getting the unknown failure message in the version
Router reloaded due to an unknown failure, PC 0x60B38674
Model: Cisco 3845
Please help to sort out the issue.
Regards,
Arun
11-15-2013 04:44 AM
Arun,
PC Bus errors ussually reflect that the router had issues accessing a certain memory location.
The memery locations can be found by issuing
show region
However this is 99% an IOS code bug.
Raise a TAC or try upgrading your IOS.
Regards,
Alex.
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11-15-2013 05:22 AM
Hi
------------------ show region ------------------
Region Manager:
Start End Size(b) Class Media Name
0x0FFFFE00 0x0FFFFFFF 512 Iomem R/W BCM region
0x2D900000 0x2FFFFDFF 40893952 Iomem R/W iomem
0x60000000 0x6D8FFFFF 227540992 Local R/W main
0x6001105C 0x6244BCAF 37989460 IText R/O main:text
0x6244C000 0x6451E2BF 34415296 IData R/W main:data
0x6451E2C0 0x6498DFBF 4652288 IBss R/W main:bss
0x6498DFC0 0x6D8FFFFF 150413376 Local R/W main:heap
0x70000000 0x7FFFFFFB 268435452 Local R/W Main memory 1
0x7FFFFFFC 0x7FFFFFFF 4 Local R/W Protected region
0x80000000 0x8D8FFFFF 227540992 Local R/W main:(main_k0)
0xA0000000 0xAD8FFFFF 227540992 Local R/W main:(main_k1)
This is the show region found in the router.
11-15-2013 05:29 AM
Arun,
Your PC error bolngs in this group of memory locations
0x60000000 0x6D8FFFFF 227540992 Local R/W main
I suggest that you try an IOS upgrade or raise a TAC
Regards,
Alex.
Please rate useful posts.
11-15-2013 04:53 AM
HI Arun,
Troubleshoot bus error:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00800cdd51.shtml
Cisco 3800 Series Router Hardware Troubleshooting
http://www.cisco.com/en/US/products/ps5855/products_tech_note09186a008073ee69.shtml
Verly old paper for troubleshooting bus error ,But the steps mentioned still holds good, it would be a hardware fault otherwise most probable an IOS bug/issue, which I can see that you'll also agree about the IOS being obsolete.
Regards
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