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bus error on 2811 Router; Causing it to reboot



I have 2811 router that has 4 SDSL wic's with 4 SDSL lines. The router is rebooted 4 times in the last one month and the reason is

System was restarted by bus error at PC 0x4009D418, address 0xB0D0AFD at *** time/date.

The PC and Address value is the same in all cases.

------------------ show region ------------------

Region Manager:

Start End Size(b) Class Media Name

0x0F400000 0x0FFFFFFF 12582912 Iomem R/W iomem:(uncached_iomem_region)

0x3F400000 0x3FFFFFFF 12582912 Iomem R/W iomem

0x40000000 0x4F3FFFFF 255852544 Local R/W main

0x4000F000 0x42B9FFFF 45682688 IText R/O main:text

0x42BA6E40 0x448BF9DF 30509984 IData R/W main:data

0x448BF9E0 0x44DB75FF 5209120 IBss R/W main:bss

0x44DB7600 0x4F3FFFFF 174361088 Local R/W main:heap

0x80000000 0x8F3FFFFF 255852544 Local R/W main:(main_k0)

0xA0000000 0xAF3FFFFF 255852544 Local R/W main:(main_k1)

Is this can be the physical memory problem?

One SDSL line is flapping every minute due to problem at ISP end. is this can be the problem?

your help in this case will be higly appriciated.


paolo bevilacqua
Hall of Fame Master Hall of Fame Master
Hall of Fame Master

In most cases these are software bugs. You can upgrade IOS in the hope it won't happen anymore.

Leo Laohoo
VIP Community Legend VIP Community Legend
VIP Community Legend

Can you attach your crashinfo file?


Could you check the config register value on your router. Is it changed or 0x2102 only ?

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