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2911 ISR is in booting loop after extra memory removed

blasemarzo
Level 1
Level 1

‎01-30-2024 08:38 AM

Hi,

I practiced to use the embedded service engine on a C2911 ISR router. The router originally has 512MB memory, I borrowed a 2GB module from an another device. As the memory was needed in the original device I removed it and forgot it for a while.

Now I should be able to use this device for another purpose and when I turn it on it started to boot and stucked in booting, constantly rebooting, missing the extra memory. I expected it will boot normally and initiate the memory it has.

Can someone advise me how to restore this device to normal state?

Thanks for your help.

 

 

LOG:

 

System Bootstrap, Version 15.0(1r)M16, RELEASE SOFTWARE (fc1)
Technical Support: http://www.cisco.com/techsupport
Copyright (c) 2012 by cisco Systems, Inc.

Total memory size = 512 MB - On-board = 512 MB, DIMM0 = 0 MB
CISCO2911/K9 platform with 524288 Kbytes of main memory
Main memory is configured to 72/-1(On-board/DIMM0) bit mode with ECC enabled


Readonly ROMMON initialized
program load complete, entry point: 0x80803000, size: 0x1b340
program load complete, entry point: 0x80803000, size: 0x1b340


IOS Image Load Test
___________________
Digitally Signed Release Software
program load complete, entry point: 0x81000000, size: 0x635d98c
Self decompressing the image : ########################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################################### [OK]
!!!! Invalid 2nd core memory size 268435456 for total 536870912 MB of main memory


%Software-forced reload


: Breakpoint exception, CPU signal 23, PC = 0x30EE9368

 

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback=
$0 : 00000000 00000000, AT : 00000000 3C810000, v0 : 00000000 3BBE9388, v1 : 00000000 00000000
a0 : 00000000 00000000, a1 : 00000000 00000000, a2 : 00000000 00000000, a3 : 00000000 3803524B
t0 : 00000000 00009F00, t1 : 00000000 50009FE1, t2 : 00000000 30037F28, t3 : FFFFFFFF FFFF00FF
t4 : 00000000 30037F28, t5 : 00000000 00000015, t6 : 00000000 00000005, t7 : 00000000 0000000B
s0 : 00000000 3BA50000, s1 : 00000000 00000000, s2 : 00000000 00000000, s3 : 00000000 3CF70000
s4 : FFFFFFFF 80B0F724, s5 : 00000000 00000006, s6 : FFFFFFFF 80B0F728, s7 : FFFFFFFF 80B0F720
t8 : 00000000 3CF5DEE8, t9 : 00000000 30031610, k0 : 00000000 504080E1, k1 : FFFFFFFF FFFFFFFE
gp : 00000000 3C81E720, sp : FFFFFFFF 80FFFDB8, s8 : 00000000 00000001, ra : 00000000 30EE7528
EPC : 30EE9368, ErrorEPC : ECBF7FD3, SREG : 50009FE3
MDLO : 00000000, MDHI : 00000005, BadVaddr : 00000000
CacheErr_Icache : 0x007F7F00 - 00003F68, CacheErr_Dcache : 0x00000000 - 00001AD0
TagLo_Icache : 0xC001FFFF - 80407D83, DataLo_Icache : 0x104000D3 - 3C02BFC1
DataHi_Icache: 0x00000000 - 00000000
TagLo_Dcache : 0x00000000 - 3BBE9383, TagHi_Dcache : 0x00000004 - 1C816981
DataLo_Dcache: 0x00000001 - 00000000, DataHi_Dcache : 0x00000000 - 00000010
TEXT_START : 0x3000DBF8
DATA_START : 0x3723D300
Cause 00000024 (Code 0x9): Breakpoint exception


: Breakpoint exception, CPU signal 23, PC = 0x30EE9368

 

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback=
$0 : 00000000 00000000, AT : 00000000 3C810000, v0 : 00000000 3BBE9388, v1 : 00000000 00000000
a0 : 00000000 00000000, a1 : 00000000 00000000, a2 : 00000000 00000000, a3 : 00000000 3803524B
t0 : 00000000 00009F00, t1 : 00000000 50009FE1, t2 : 00000000 30037F28, t3 : FFFFFFFF FFFF00FF
t4 : 00000000 30037F28, t5 : 00000000 00000015, t6 : 00000000 00000005, t7 : 00000000 0000000B
s0 : 00000000 3BA50000, s1 : 00000000 00000000, s2 : 00000000 00000000, s3 : 00000000 3CF70000
s4 : FFFFFFFF 80B0F724, s5 : 00000000 00000006, s6 : FFFFFFFF 80B0F728, s7 : FFFFFFFF 80B0F720
t8 : 00000000 3CF5DEE8, t9 : 00000000 30031610, k0 : 00000000 504080E1, k1 : FFFFFFFF FFFFFFFE
gp : 00000000 3C81E720, sp : FFFFFFFF 80FFFDB8, s8 : 00000000 00000001, ra : 00000000 30EE7528
EPC : 30EE9368, ErrorEPC : ECBF7FD3, SREG : 50009FE3
MDLO : 00000000, MDHI : 00000005, BadVaddr : 00000000
CacheErr_Icache : 0x007F7F00 - 00003F68, CacheErr_Dcache : 0x00000000 - 00001AD0
TagLo_Icache : 0xC001FFFF - 80407D83, DataLo_Icache : 0x104000D3 - 3C02BFC1
DataHi_Icache: 0x00000000 - 00000000
TagLo_Dcache : 0x00000000 - 3BBE9383, TagHi_Dcache : 0x00000004 - 1C816981
DataLo_Dcache: 0x00000001 - 00000000, DataHi_Dcache : 0x00000000 - 00000010
TEXT_START : 0x3000DBF8
DATA_START : 0x3723D300
Cause 00000024 (Code 0x9): Breakpoint exception


: Breakpoint exception, CPU signal 23, PC = 0x30EE9368

 

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback=
$0 : 00000000 00000000, AT : 00000000 3C810000, v0 : 00000000 3BBE9388, v1 : 00000000 00000000
a0 : 00000000 00000000, a1 : 00000000 00000000, a2 : 00000000 00000000, a3 : 00000000 3803524B
t0 : 00000000 00009F00, t1 : 00000000 50009FE1, t2 : 00000000 30037F28, t3 : FFFFFFFF FFFF00FF
t4 : 00000000 30037F28, t5 : 00000000 00000015, t6 : 00000000 00000005, t7 : 00000000 0000000B
s0 : 00000000 3BA50000, s1 : 00000000 00000000, s2 : 00000000 00000000, s3 : 00000000 3CF70000
s4 : FFFFFFFF 80B0F724, s5 : 00000000 00000006, s6 : FFFFFFFF 80B0F728, s7 : FFFFFFFF 80B0F720
t8 : 00000000 3CF5DEE8, t9 : 00000000 30031610, k0 : 00000000 504080E1, k1 : FFFFFFFF FFFFFFFE
gp : 00000000 3C81E720, sp : FFFFFFFF 80FFFDB8, s8 : 00000000 00000001, ra : 00000000 30EE7528
EPC : 30EE9368, ErrorEPC : ECBF7FD3, SREG : 50009FE3
MDLO : 00000000, MDHI : 00000005, BadVaddr : 00000000
CacheErr_Icache : 0x007F7F00 - 00003F68, CacheErr_Dcache : 0x00000000 - 00001AD0
TagLo_Icache : 0xC001FFFF - 80407D83, DataLo_Icache : 0x104000D3 - 3C02BFC1
DataHi_Icache: 0x00000000 - 00000000
TagLo_Dcache : 0x00000000 - 3BBE9383, TagHi_Dcache : 0x00000004 - 1C816981
DataLo_Dcache: 0x00000001 - 00000000, DataHi_Dcache : 0x00000000 - 00000010
TEXT_START : 0x3000DBF8
DATA_START : 0x3723D300
Cause 00000024 (Code 0x9): Breakpoint exception

-Traceback=


: TLB (load or instruction fetch) exception, CPU signal 10, PC = 0x30067AD0

 

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback=
$0 : 00000000 00000000, AT : 00000000 00000024, v0 : 00000000 00000000, v1 : 00000000 00000000
a0 : 00000000 00000000, a1 : 00000000 39A19460, a2 : 00000000 00000000, a3 : 00000000 39A1945F
t0 : 00000000 00000053, t1 : 00000000 39A1945D, t2 : 00000000 00000073, t3 : 00000000 30037F60
t4 : 00000000 30037F28, t5 : FFFFFFFF FFFFFFFF, t6 : 00000000 383FA670, t7 : 00000000 3C81E720
s0 : 00000000 3BA50000, s1 : 00000000 3C820000, s2 : 00000000 00000017, s3 : 00000000 3C820000
s4 : 00000000 3CF70000, s5 : 00000000 3CF70000, s6 : 00000000 3CF70000, s7 : 00000000 3B6F0000
t8 : 00000000 00000000, t9 : 00000000 30ED9D94, k0 : 00000000 3CF6BFD0, k1 : 00000000 00000000
gp : 00000000 3C81E720, sp : 00000000 3B68B988, s8 : 00000000 3CF70000, ra : 00000000 30EE7374
EPC : 30067AD0, ErrorEPC : ECBF7FD3, SREG : 500080E3
MDLO : 00000000, MDHI : 00000009, BadVaddr : 00000053
CacheErr_Icache : 0x007F7F00 - 00003F68, CacheErr_Dcache : 0x00000000 - 000032D0
TagLo_Icache : 0xC001FFFF - 80407D83, DataLo_Icache : 0x104000D3 - 3C02BFC1
DataHi_Icache: 0x00000000 - 00000000
TagLo_Dcache : 0x00000000 - 37728483, TagHi_Dcache : 0x00000004 - 1C816981
DataLo_Dcache: 0x00000000 - 00000000, DataHi_Dcache : 0x00000000 - 00000000
TEXT_START : 0x3000DBF8
DATA_START : 0x3723D300
Cause 00000008 (Code 0x2): TLB (load or instruction fetch) exception


: TLB (load or instruction fetch) exception, CPU signal 10, PC = 0x30067AD0

 

--------------------------------------------------------------------
Possible software fault.
Please collect crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback=
$0 : 00000000 00000000, AT : 00000000 00000024, v0 : 00000000 00000000, v1 : 00000000 00000000
a0 : 00000000 00000000, a1 : 00000000 39A19460, a2 : 00000000 00000000, a3 : 00000000 39A1945F
t0 : 00000000 00000053, t1 : 00000000 39A1945D, t2 : 00000000 00000073, t3 : 00000000 30037F60
t4 : 00000000 30037F28, t5 : FFFFFFFF FFFFFFFF, t6 : 00000000 383FA670, t7 : 00000000 3C81E720
s0 : 00000000 3BA50000, s1 : 00000000 3C820000, s2 : 00000000 00000017, s3 : 00000000 3C820000
s4 : 00000000 3CF70000, s5 : 00000000 3CF70000, s6 : 00000000 3CF70000, s7 : 00000000 3B6F0000
t8 : 00000000 00000000, t9 : 00000000 30ED9D94, k0 : 00000000 3CF6BFD0, k1 : 00000000 00000000
gp : 00000000 3C81E720, sp : 00000000 3B68B988, s8 : 00000000 3CF70000, ra : 00000000 30EE7374
EPC : 30067AD0, ErrorEPC : ECBF7FD3, SREG : 500080E3
MDLO : 00000000, MDHI : 00000009, BadVaddr : 00000053
CacheErr_Icache : 0x007F7F00 - 00003F68, CacheErr_Dcache : 0x00000000 - 000032D0
TagLo_Icache : 0xC001FFFF - 80407D83, DataLo_Icache : 0x104000D3 - 3C02BFC1
DataHi_Icache: 0x00000000 - 00000000
TagLo_Dcache : 0x00000000 - 37728483, TagHi_Dcache : 0x00000004 - 1C816981
DataLo_Dcache: 0x00000000 - 00000000, DataHi_Dcache : 0x00000000 - 00000000
TEXT_START : 0x3000DBF8
DATA_START : 0x3723D300
Cause 00000008 (Code 0x2): TLB (load or instruction fetch) exception

-Traceback=


=== Flushing messages () ===

*** System received a Bus Error exception ***
signal= 0xa, code= 0x8, context= 0x3cf6dc6c
PC = 0x30067ad0, SP = 0x3b68b988, RA = 0x30ee7374
Cause Reg = 0x00000008, Status Reg = 0x500080e3

Labels:
0 Helpful
4 Replies 4

balaji.bandi
Hall of Fame
Hall of Fame

‎01-30-2024 10:34 AM 

!!!! Invalid 2nd core memory size 268435456 for total 536870912 MB of main memory

Maybe try if you spare memory to tet to identify as memory issue ?

what version of code you running ? also try Lower version of code ?

BB

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0 Helpful

blasemarzo
Level 1
Level 1
In response to balaji.bandi

‎01-31-2024 12:55 AM

There is no memory in the slot, as I removed the extra ram from the slot, just the basic 512 MB on the board.

That is the original state of the router.

0 Helpful

liviu.gheorghe
Spotlight
Spotlight

‎01-30-2024 12:54 PM

Hello @blasemarzo ,

it seems to me that the router is complaining about the DIMM you introduced in the UDIMM slot - I read 256M (268435456) instead of 2G.

The 2911 accept UDIMM sizes of 512MB, 1GB, 2 GB.

Can you check the inserted UDIMM and either replace it with one of the supported size or remove it from the router. The router has 512 MB on the motherboard and all IOS images I see available for download form Cisco require a minimum of 512 MB.

Your router should boot ok without the additional DIMM. Depending on the configuration of the router, it could need additional RAM, but to just test the booting process it should be ok.

Regards, LG
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0 Helpful

blasemarzo
Level 1
Level 1
In response to liviu.gheorghe

‎01-31-2024 12:54 AM

Hi,

The board has 512MB and removed the extra 2GB ram module from the slot. I supposed it should load without it, but seems not to do it anymore

 

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