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Cisco 1841 router hangs or not booting up properly

noumanqazi
Level 1
Level 1

Dears,

I have Cisco 1841 Router with no WIC cards and USB.

Image is ipbase and on the flash.  When it boots it gives the error and hangs - As suggested I changed the register value to 0x2142 but no change happened.

Following are the capture from the router ...

---------------


System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport (c) 2006 by cisco Systems, Inc.

Copyright


Correcting the backup nv_flash

*** TLB (Load/Fetch) Exception ***
Access address = 0xffffcfd0
PC = 0xbfc24b00, Cause = 0x8008, Status Reg = 0x30410002
Failure detected during ROMMON start-up tests. Restart ROMMON.


System Bootstrap, Version 12.4(13r)T, RELEASE SOFTWARE (fc1)

Technical Support: http://www.cisco.com/techsupport (c) 2006 by cisco Systems, Inc.

Copyright


Correcting the backup nv_flash
PLD version 0x10
GIO ASIC version 0x127
c1841 platform with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with parity disabled


Readonly ROMMON initialized

pass -1075904512,   test
*** Emulating mis-aligned load at 0x0000aaaa
    PC = 0xbfc24b00 ... failed, opcode = 0x4
rommon 1 > s    ?
alias               set and display aliases command
boot                boot up an external process
break               set/show/clear the breakpoint
confreg             configuration register utility
cont                continue executing a downloaded image
context             display the context of a loaded image
cookie              display contents of motherboard cookie PROM in hex
dev                 list the device table
dir                 list files in file system
dis                 disassemble instruction stream
dnld                serial download a program module
frame               print out a selected stack frame
gioshow             show the gio version
help                monitor builtin command help
history             monitor command history
iomemset            set IO memory percent
meminfo             main memory information
repeat              repeat a monitor command
reset               system reset
rommon-pref         Select ROMMON
set                 display the monitor variables
showmon             display currently selected ROM monitor
stack               produce a stack trace
sync                write monitor environment to NVRAM
sysret              print out info from last system return
tftpdnld            tftp image download
unalias             unset an alias
unset               unset a monitor variable
xmodem              x/ymodem image download
rommon 2 > tft[   pdnls

monitor: command "tftpdnls" not found
rommon 3 > tftpdnld ?

usage: tftpdnld [-hr]
  Use this command for disaster recovery only to recover an image via TFTP.
  Monitor variables are used to set up parameters for the transfer.
  (Syntax: "VARIABLE_NAME=value" and use "set" to show current variables.)
  "ctrl-c" or "break" stops the transfer before flash erase begins.

  The following variables are REQUIRED to be set for tftpdnld:
            IP_ADDRESS: The IP address for this unit
        IP_SUBNET_MASK: The subnet mask for this unit
       DEFAULT_GATEWAY: The default gateway for this unit
           TFTP_SERVER: The IP address of the server to fetch from
             TFTP_FILE: The filename to fetch

  The following variables are OPTIONAL:
          TFTP_VERBOSE: Print setting. 0=quiet, 1=progress(default), 2=verbose
      TFTP_RETRY_COUNT: Retry count for ARP and TFTP (default=18)
          TFTP_TIMEOUT: Overall timeout of operation in seconds (default=7200)
         TFTP_CHECKSUM: Perform checksum test on image, 0=no, 1=yes (default=1)
               FE_PORT: 0= (default), 1
         FE_SPEED_MODE: 0=10/hdx, 1=10/fdx, 2=100/hdx, 3=100/fdx,
                        4=Auto (default)
      TFTP_DESTINATION: The flash destination device for the file
                        flash:(default), usbflash0:

  Command line options:
   -h: this help screen
   -r: do not write flash, load to DRAM only and launch image

rommon 4 > boot
program load complete, entry point: 0x8000f000, size: 0xcb80
program load complete, entry point: 0x8000f000, size: 0xcb80

program load complete, entry point: 0x8000f000, size: 0xe08298
Self decompressing the image : ############################################################################################################################################# [OK]


Smart Init is enabled
smart init is sizing iomem
  ID            MEMORY_REQ         TYPE
                0X003AA110 public buffer pools
                0X00211000 public particle pools
                0X000021B8 Onboard USB

If any of the above Memory Requirements are
"UNKNOWN", you may be using an unsupported
configuration or there is a software problem and
system operation may be compromised.

Allocating additional 21102364 bytes to IO Memory.
PMem allocated: 239075328 bytes; IOMem allocated: 29360128 bytes

amd_flash_cmd(): timeout on erase sector command
===============================================================

I also check the flash by plugging into my desktop and it is showing the image - I also formated the flash and again copy the image - but problem remain the same.

Thanks

Nouman

3 Replies 3

Leo Laohoo
Hall of Fame
Hall of Fame

Hi Nouman,

Do you get the error message when you eject the CF?  If no, then there's a remote possiblity that your IOS could be corrupt.  I said "remote" because of the first three line errors:

Correcting the backup nv_flash

*** TLB (Load/Fetch) Exception ***
Access address = 0xffffcfd0
PC = 0xbfc24b00, Cause = 0x8008, Status Reg = 0x30410002
Failure detected during ROMMON start-up tests. Restart ROMMON.

But I think the bootstrap could be corrupt.  The easiest to fix this is IF, and only IF, you can boot to a proper IOS then upgrade the bootstrap or ROMMON firmware.

If it still doesn't work, then contact Cisco TAC and arrange to get the appliance RMA-ed.

Hi,

Its a 1841 Router remove the external 128 Mb RAM and reload the Router.

"*** TLB (Load/Fetch) Exception ***"

Regards,

Ranjit

Matt Christian
Level 1
Level 1

My Cisco 1841 router had similar errors.  Root problem turned out to be an IOS bug with "warm-reboot" enabled.  The workaround to remove "warm-reboot" is a workaround for now until new IOS is released.

program load complete, entry point: 0x8000f000, size: 0x2125f14

Self decompressing the image : ######################################################################################################################################################################################################## [OK]

*** Address Error (Load/Fetch) Exception ***

Access address = 0x4010801

PC = 0x4010801, Cause = 0x10, Status Reg = 0x34410002

monitor: command "boot" aborted due to exception

From Cisco TAC support:

There is a couple of bugs about the issue:

CSCtx15376    

Router crashes aftr upgrade to 15.1(4)M3 when "warm-reboot" CLI is cfg'd

Externally found severe (Sev2) bug: D-Duplicate

CSCtx33107   

3845 Fails to Boot 15.1(4)M3

Externally found severe (Sev2) bug: D-Duplicate

Duplicate of:

CSCtt43552   

Router getting reloads with "warm-reboot" cli

Internally found severe (Sev2) bug: R-Resolved

This will be fixed in 15.2(3)T and 15.1(4)M4 which is expected to be released on March 30.  The workaround is to remove the "warm-reboot" command.

Router(config)#no warm-reboot

Router(config)#exit

Router#write

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