IOMEM set to: 25 and the Router keeps rebooting

Answered Question
Aug 7th, 2012
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Hi guys,


Because of a NATTING error, I had to change a memory parameter. Following a thread I found, I set the memory-size as follows:


memory-size iomem 25


After that, the router worked fine for a couple of days but after the restart it started returning memory errors. Even booting in ROMMOD, I get the following error message,


Copyright (c) 2006 by cisco Systems, Inc.

PLD version 0x10

GIO ASIC version 0x127

c1841 platform with 131072 Kbytes of main memory

Main memory is configured to 64 bit mode with parity disabled





Readonly ROMMON initialized

program load complete, entry point: 0x8000f000, size: 0xcb80

program load complete, entry point: 0x8000f000, size: 0xcb80



program load complete, entry point: 0x8000f000, size: 0x20beff4

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



IOMEM set to: 25

25 percent IO memory configuration is too large. Decreasing to 29360128 bytes.

PMem allocated: 104857600 bytes



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subject to restrictions as set forth in subparagraph

(c) of the Commercial Computer Software - Restricted

Rights clause at FAR sec. 52.227-19 and subparagraph

(c) (1) (ii) of the Rights in Technical Data and Computer

Software clause at DFARS sec. 252.227-7013.



           cisco Systems, Inc.

           170 West Tasman Drive

           San Jose, California 95134-1706







Cisco IOS Software, 1841 Software (C1841-ADVSECURITYK9-M), Version 12.4(24)T, RELEASE SOFTWARE (fc1)

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

Copyright (c) 1986-2009 by Cisco Systems, Inc.

Compiled Wed 25-Feb-09 15:45 by prod_rel_team





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SYSTEM INIT: INSUFFICIENT MEMORY TO BOOT THE IMAGE!







%Software-forced reload





07:59:44 UTC Tue Aug 7 2012: Breakpoint exception, CPU signal 23, PC = 0x6066F228







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

   Possible software fault. Upon reccurence,  please collect

   crashinfo, "show tech" and contact Cisco Technical Support.

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





-Traceback= 0x6066B368z 0x60669834z 0x602B3468z 0x602D0524z 0x602CED84z 0x602CEF10z 0x61E3464Cz 0x61E34630z

$0 : 00000000, AT : 63EE0000, v0 : 00000018, v1 : 00000000

a0 : 00000000, a1 : 62C3E41C, a2 : 00000000, a3 : 62C40000

t0 : 640006C8, t1 : 641C0000, t2 : 60674A68, t3 : FFFF00FF

t4 : 00000001, t5 : 63AEFC0C, t6 : 63AF0000, t7 : A00059D0

s0 : 00000000, s1 : 00000000, s2 : 63AF0000, s3 : 63BE0000

s4 : 00000000, s5 : 00000000, s6 : 00000000, s7 : 62AEA46C

t8 : 00008000, t9 : 641C0000, k0 : 3041E801, k1 : 00100000

gp : 63EE1D40, sp : 64F77C70, s8 : 64F6BA7C, ra : 6066D6F4

EPC  : 6066F228, ErrorEPC : BFC05FDC, SREG     : 3401FF03

MDLO : 0001E848, MDHI     : 00000000, BadVaddr : 77EF7FE5

TEXT_START : 0x600137C0

DATA_START : 0x62883EC0

Cause 00000024 (Code 0x9): Breakpoint exception



File flash:crashinfo_20120807-075944 Device Error :No such device

File flash:crashinfo_20120807-075944 Device Error :No such device

File lic0:crashinfo_20120807-075944 Device Error :No such device

File lic1:crashinfo_20120807-075944 Device Error :No such device

File flash:crashinfo_20120807-075944 Device Error :No such device

File lic0:crashinfo_20120807-075944 Device Error :No such device

File lic1:crashinfo_20120807-075944 Device Error :No such device



07:59:44 UTC Tue Aug 7 2012: Breakpoint exception, CPU signal 23, PC = 0x6066F228


Any idea? I am not interested in keeping the old configuration. I am more than happy to reset it completely if you tell me how to do it.


Thanks,

Dario

Correct Answer by rmcarthur about 5 years 1 week ago

Hi Dario, your system doesn't meet the minimum requirements for the image you are trying to load.


12.4(24)T Adv Security requires 192MB dram/64MB flash


You have only 128MB dram


c1841 platform with 131072 Kbytes of main memory


The latest 12.4 image Adv Security image I could see that will run with 128MB dram is 12.4(25)f.

Please downgrade to this version or earlier and report if error clears.


Thanks

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johnlloyd_13 Tue, 08/07/2012 - 03:59
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Hi Dario,


I've replied to your other post. As per the 1841's output, kindly raise this issue with Cisco TAC:


Possible software fault. Upon reccurence, please collect crashinfo, "show tech" and contact Cisco Technical Support.


Sent from Cisco Technical Support iPhone App

Correct Answer
rmcarthur Tue, 08/07/2012 - 04:36
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Hi Dario, your system doesn't meet the minimum requirements for the image you are trying to load.


12.4(24)T Adv Security requires 192MB dram/64MB flash


You have only 128MB dram


c1841 platform with 131072 Kbytes of main memory


The latest 12.4 image Adv Security image I could see that will run with 128MB dram is 12.4(25)f.

Please downgrade to this version or earlier and report if error clears.


Thanks

Dario Francesco... Tue, 08/07/2012 - 06:57
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Hi guys.


I have inherited this router already equipped with that OS. I guess tomorrow I will organize to add an extra module of ram.


Just a question that may be silly for you guys: can I recycle an SDRAM module from an old computer or do I have to use a particular module for Cisco?


Thanks,

Dario

rmcarthur Tue, 08/07/2012 - 08:31
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Hi Dario, it's been a while since I've had the lid of one of these but I'm pretty sure it's a single expansion slot SODIMM (more like laptop dram than PC dram) with 128MB soldered on board.

If you can, I'd recommend downgrading the IOS first just to verify that there isn't an underlying issue with your hardware. If that works, you can then upgrade with a suitable SODIMM and reload your current software.


Thanks,

Ross

Dario Francesco... Thu, 08/09/2012 - 00:45
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Thanks guys,


I've ordered 256MB of extra ram. The price is low so I prefer to keep the existing OS. I wish it will work.


Dario

rmcarthur Thu, 08/09/2012 - 02:55
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Good luck with the upgrade Dario, let us know how it goes.


Please remember to rate useful posts.


Thanks,

Ross

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