Cisco 2821 suddenly reboots

[mgpetkov77]

Teh following output is generated by sh context

System was restarted by bus error at PC 0x41FE4988, address 0x813B at 10:07:23 EEST Wed Aug 29 2012

2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(20)T1, RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Compiled Wed 24-Sep-08 14:37 by prod_rel_team

Image text-base: 0x400783C8, data-base: 0x43DC3FC0

Stack trace from system failure:

FP: 0x47D46830, RA: 0x41FE4988

FP: 0x47D46888, RA: 0x41FDFF34

FP: 0x47D468C0, RA: 0x41E1337C

FP: 0x47D46920, RA: 0x41E15CC4

FP: 0x47D46998, RA: 0x41E16650

Fault History Buffer:

2800 Software (C2800NM-ADVIPSERVICESK9-M), Version 12.4(20)T1, RELEASE SOFTWARE (fc3)

Technical Support: http://www.cisco.com/techsupport

Compiled Wed 24-Sep-08 14:37 by prod_rel_team

Signal = 10, Code = 0x46D40000, Uptime 1d16h

$0 : 00000000, AT : 000000BA, v0 : 00000007, v1 : 00000008

a0 : FFFFFFFF, a1 : 47545AD4, a2 : 4008DAC0, a3 : 00000000

t0 : 00000008, t1 : FFFFFFFF, t2 : 00000001, t3 : 00000815

t4 : 00000814, t5 : 00010000, t6 : FFFFFFFF, t7 : 00000002

s0 : 0000FFFF, s1 : 47545AD4, s2 : 4008DAC0, s3 : 00000814

s4 : 00000000, s5 : 46AF0000, s6 : 46980000, s7 : 3F201898

t8 : 46530000, t9 : 46D338F0, k0 : 3040A801, k1 : A000F000

gp : 46986C40, sp : 47D46830, s8 : 00000000, ra : 41FDFF34

EPC : 41FE4988, SREG : 3400FF03, Cause : 00000010

Error EPC : BFC00E8C, BadVaddr : 0000813B

CacheErr : 903FFFC0, DErrAddr0 : 07069DC8,

                            DErrAddr1 : 07EABCE0

DATA_START : 0x43DC3FC0

Is this a hardware or software problem?

[Sandeep Choudhary]

Hi Milen,

This is the problem with IOS.

Upgrading the IOS will solve this problem.

here is the link of troubleshotting:

http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00800cdd51.shtmlhttp://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00800cdd51.shtml

Regards

Please rate if it helps.

[Karsten Iwen]

This router has to be updated. 12.4.(20)T1 is really old, in that release T6 is the actual version (that's five rounds of Bugfixing).

If you don't need the features from 12.4.20, I would go for 12.4(15)T17. That release is running on many of my customers routers without problems.

-- 
Don't stop after you've improved your network! Improve the world by lending money to the working poor:
http://www.kiva.org/invitedby/karsteni

[Leo Laohoo]

Signal = 10,

IOS failure or bug.

[Ivan Shirshin]

Hi Leo,

Only if the adress is out of the valid memory range. We need to check if the address 0x813B is in a list of valid addresses from "show region".

In case the address is valid  - it is HW issue.

Kind Regards,
Ivan

[Leo Laohoo]

Only if the adress is out of the valid memory range. We need to check if the address 0x813B is in a list of valid addresses from "show region".

C'mon, Ivan!  Y'know I don't have the tools to do this ... Hmmmm ... will "test crash" replicate this perhaps?

LOL

[Ivan Shirshin]

For that one you need just to compare the address and start/end numbers :-)

Router#show region 
Region Manager: 
     Start         End     Size(b)  Class  Media  Name 
0x00000000  0x007FFFFF     8388608  Local  R/W    main 
0x00001000  0x0001922F       98864  IData  R/W    main:data 
0x00019230  0x000666B3      316548  IBss   R/W    main:bss 
0x000666B4  0x007FEFFF     7965004  Local  R/W    main:heap 
0x007FF000  0x007FFFFF        4096  Local  R/W    main:flhlog 
0x00800000  0x009FFFFF     2097152  Iomem  R/W    iomem 
0x03000000  0x037FFFFF     8388608  Flash  R/O    flash 
0x0304033C  0x037A7D3F     7764484  IText  R/O    flash:text

Btw, two "test crash" options for Bus Error speak about this HW kind of issues - parity in main or I/O memory:

Ciscozine#test crash
Type the number for the selected crash:
--------------------------------------
...
 2  (crash router) Bus Error, due to parity error in Main memory
 3  (crash router) Bus Error, due to parity error in I/O memory

...

Kind Regards,
Ivan Shirshin