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New Member

3945 router will not boot

I have a router I was working on that has suddenly started to boot into ROMMON.

I'm getting:

Readonly ROMMON initialized

rommon > 1

I can see the IOS file when I do a "dir flash0:"

that tells me the flash is acknowledged and read by the router.

I have used a known good flash and the router wont boot from it either.  I can use the flash from the failed router to boot another identical router just fine.

I have looked at other forum discussions which has led me to ensure the CF is firmly seated, and the DIMMs as well.

Am i jumping the gun to think I havea router hardware problem?

Any ideas would be appreciated

1 ACCEPTED SOLUTION

Accepted Solutions

3945 router will not boot

Hi Frank,

*** Machine Check Exception ***

System Return Info:

count: 19, reason: reset

pc:0x0, error address: 0x0

Stack Trace:

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

Based on the above it is confirmed that there is a Hardware issue with the device & requires replacement. Kindly do the needful.

***********Plz do rate this post if you found it helpful*************************

Thanks & Regards,

Vignesh R P

8 REPLIES
Hall of Fame Super Silver

3945 router will not boot

One idea is that it may be an issue with the config register. If you can get the router to boot using the image in flash it would be helpful if you would post the output of show version. The value of the config register is in the output near the last line.

HTH

Rick

3945 router will not boot

Hi,

Please change configuration register value to

0x2102

confreg 0x2102

Jawad
New Member

3945 router will not boot

Richard and Jawad,

Thanks for your replies.  I have set confreg to 0x2102 and rebooted, but the problem still remains.  I have noticed that when the IOS attempts to launch the configuration register confirms that it is set to to 0x2102. 

I'm really leaning toward a HW problem as the CF works in my other router.  There really isn't anything else configurable unless there is a possibility that the speed setting in the configuration register is not in the 0x2102 parameter, However, if it's not, I dont know how it would have changed, this router worked last week.

might there be a configiguration register speed setting that I can check?

I really appreciate your ideas

Thanks

Frank

Hall of Fame Super Gold

3945 router will not boot

Post the entire bootup process.

Hall of Fame Super Silver

3945 router will not boot

Frank

I am not sure what speed setting you are thinking about. The obvious one is the console speed. That speed is set in the config register - and the fact that you are getting console output showing that you are in rommon verifies that the console speed setting is correct.

I agree with Leo that you should post the entire bootup process output.

HTH

Rick

New Member

3945 router will not boot

Richard, Leo,

Here is the Boot up:

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 = 1024 MB - DIMM0 = 512 MB, DIMM1 = 512 MB

CISCO3945-CHASSIS with C3900-SPE150/K9 with 1048576 Kbytes of main memory

Main memory is configured to 72/72(dimm 0/1) bit mode with ECC enabled

Readonly ROMMON initialized

program load complete, entry point: 0x4000000, size: 0x18fa0

program load complete, entry point: 0x4000000, size: 0x18fa0

IOS Image Load Test ___________________

*** Machine Check Exception ***

CPU context of the most recent exception:

R0   = 0x3ccadba1 R1   = 0x00413564 R2     = 0xff9ab7fa R3     = 0x3ccadb80

R4   = 0x00413658 R5   = 0x00000080 R6     = 0x8bb86f66 R7     = 0x00929857

R8   = 0x974c3ea0 R9   = 0x00413678 R10   = 0x004132d4 R11   = 0x3ccadba0

R12   = 0x5c6f132d R13   = 0xfd7dd3f2 R14   = 0xdf6d7eff R15   = 0xffba0710

R16   = 0xea3feb97 R17   = 0x7c7eccb1 R18   = 0xfffceebd R19   = 0x5eb6bc14

R20   = 0xfb36bfff R21   = 0x0ecd5edf R22   = 0xdaaf5cec R23   = 0xd23de653

R24   = 0xf53e6bbc R25   = 0xcfbaf9cf R26   = 0xff5cdde5 R27   = 0xff2c1d1e

R28   = 0xff8e7560 R29   = 0x00000000 R30   = 0xfd7fbffd R31   = 0x00413564

CR   = 0x88000082 LR   = 0xff84bba8 CTR   = 0xff84ba34 XER   = 0x20000000

TBU   = 0x00000000 TBL   = 0xde49e93e DEAR   = 0x00000000 IVPR   = 0x00000000

PVR   = 0x00000000 DBCR0 = 0x00000000 DBCR1 = 0x00000000 DBCR2 = 0x00000000

IAC1 = 0x00000000 IAC2 = 0x00000000 DAC1   = 0x00000000 DAC2   = 0x00000000

CSRR0 = 0x00000000 CSRR1 = 0x00000000 MCSRR0 = 0xff84ba88 MCSRR1 = 0x02029200

PC   = 0xff84ba88 MSR   = 0x02029200

CPU SPR Registers:

CSRR0 = 0x00000000

CSRR1 = 0x00000000

CTR = 0xff84ba34

DAC1 = 0x00000000

DAC2 = 0x00000000

DBCR0 = 0x00000000

DBCR1 = 0x00000000

DBCR2 = 0x00000000

DBSR = 0x20000000

DEAR = 0x00000000

DEC = 0x00002b50

ESR = 0x00000000

IAC1 = 0x00000000

IAC2 = 0x00000000

IVOR0 = 0x00000100

IVOR1 = 0x00000200

IVOR2 = 0x00000300

IVOR3 = 0x00000400

IVOR4 = 0x00000500

IVOR5 = 0x00000600

IVOR6 = 0x00000700

IVOR8 = 0x00000c00

IVOR10 = 0x00000900

IVOR11 = 0x00000b00

IVOR12 = 0x00000d00

IVOR13 = 0x00001400

IVOR14 = 0x00001300

IVOR15 = 0x00001500

IVPR = 0xff800000

LR = 0xff83f630

PIR = 0x00000000

PVR = 0x80210030

SPRG0 = 0x00413658

SPRG1 = 0x00413658

SPRG2 = 0x00413658

SPRG3 = 0x00000000

SPRG4 = 0xff84bba8

SPRG5 = 0x00000000

SPRG6 = 0x00000000

SPRG7 = 0x00000000

SRRO = 0xff874104

SRR1 = 0x02029200

TBL = 0xe75c81ab

TBU = 0x00000000

TCR = 0x04400000

TSR = 0x08000000

USPRG0 = 0x00000000

XER = 0x20000000

BBEAR = 0x00000000

BBTAR = 0x00000000

BUCSR = 0x00000001

HID0 = 0x00004080

HID1 = 0xc5021000

IVOR32 = 0x00000f00

IVOR33 = 0x00001000

IVOR34 = 0x00001100

IVOR35 = 0x00001200

L1CFG0 = 0x00383820

L1CFG1 = 0x00383820

L1CSR0 = 0x00010001

L1CSR1 = 0x00000001

MAS0 = 0x10000000

MAS1 = 0xc0000700

MAS2 = 0xff000002

MAS3 = 0xff000033

MAS4 = 0x00000000

MAS6 = 0x00000000

MCAR = 0x3ccadba0

MCSR = 0x00010008

MCSRR0 = 0xff84ba88

MCSRR1 = 0x02029200

MMUCFG = 0x000019c4

MMUCSR0 = 0x00000000

PID0 = 0x00000000

PID1 = 0x00000000

PID2 = 0x00000000

SPEFSCR = 0x00000000

SVR = 0x80e80022

TLB0CFG = 0x04110200

TLB1CFG = 0x101bc010

System Return Info:

count: 19, reason: reset

pc:0x0, error address: 0x0

Stack Trace:

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

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 = 1024 MB - DIMM0 = 512 MB, DIMM1 = 512 MB

CISCO3945-CHASSIS with C3900-SPE150/K9 with 1048576 Kbytes of main memory

Main memory is configured to 72/72(dimm 0/1) bit mode with ECC enabled

Readonly ROMMON initialized

Compact Flash1: Not present

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 = 1024 MB - DIMM0 = 512 MB, DIMM1 = 512 MB

CISCO3945-CHASSIS with C3900-SPE150/K9 with 1048576 Kbytes of main memory

Main memory is configured to 72/72(dimm 0/1) bit mode with ECC enabled

Readonly ROMMON initialized

program load complete, entry point: 0x4000000, size: 0x18fa0

program load complete, entry point: 0x4000000, size: 0x18fa0

*** Machine Check Exception ***

CPU context of the most recent exception:

R0   = 0x00000400 R1   = 0x00413094 R2     = 0xff9ab7fa R3     = 0x00000000

R4   = 0x00000000 R5   = 0x0001000c R6     = 0x00000000 R7     = 0x00000000

R8   = 0x0001000c R9   = 0x00000000 R10   = 0x00003f93 R11   = 0x0000019c

R12   = 0x22000042 R13   = 0xfd7dd3f2 R14   = 0xdf6d7eff R15   = 0xffba0710

R16   = 0xea3feb97 R17   = 0x7c7eccb1 R18   = 0xfffceebd R19   = 0x5eb6bc14

R20   = 0xfb36bfff R21   = 0x0ecd5edf R22   = 0xdaaf5cec R23   = 0xd23de653

R24   = 0xf53e6bbc R25   = 0x04090000 R26   = 0x0041335c R27   = 0x00000000

R28   = 0x00000001 R29   = 0x0041fb4f R30   = 0x0401cac4 R31   = 0x00000000

CR   = 0x22000024 LR   = 0x040131fc CTR   = 0x000003fa XER   = 0x20000000

TBU   = 0x00000000 TBL   = 0x1d7faed7 DEAR   = 0x00000000 IVPR   = 0x00000000

PVR   = 0x00000000 DBCR0 = 0x00000000 DBCR1 = 0x00000000 DBCR2 = 0x00000000

IAC1 = 0x00000000 IAC2 = 0x00000000 DAC1   = 0x00000000 DAC2   = 0x00000000

CSRR0 = 0x00000000 CSRR1 = 0x00000000 MCSRR0 = 0x04015750 MCSRR1 = 0x02029200

PC   = 0x04015750 MSR   = 0x02029200

CPU SPR Registers:

CSRR0 = 0x00000000

CSRR1 = 0x00000000

CTR = 0x000003fa

DAC1 = 0x00000000

DAC2 = 0x00000000

DBCR0 = 0x00000000

DBCR1 = 0x00000000

DBCR2 = 0x00000000

DBSR = 0x20000000

DEAR = 0x00000000

DEC = 0x0000ad86

ESR = 0x00000000

IAC1 = 0x00000000

IAC2 = 0x00000000

IVOR0 = 0x00000100

IVOR1 = 0x00000200

IVOR2 = 0x00000300

IVOR3 = 0x00000400

IVOR4 = 0x00000500

IVOR5 = 0x00000600

IVOR6 = 0x00000700

IVOR8 = 0x00000c00

IVOR10 = 0x00000900

IVOR11 = 0x00000b00

IVOR12 = 0x00000d00

IVOR13 = 0x00001400

IVOR14 = 0x00001300

IVOR15 = 0x00001500

IVPR = 0xff800000

LR = 0xff83f630

PIR = 0x00000000

PVR = 0x80210030

SPRG0 = 0x00000002

SPRG1 = 0x00000002

SPRG2 = 0x00000000

SPRG3 = 0x00000000

SPRG4 = 0x040131fc

SPRG5 = 0x00000000

SPRG6 = 0x00000000

SPRG7 = 0x00000000

SRRO = 0x04001654

SRR1 = 0x02029200

TBL = 0x2692331e

TBU = 0x00000000

TCR = 0x04400000

TSR = 0x08000000

USPRG0 = 0x00000000

XER = 0x20000000

BBEAR = 0x00000000

BBTAR = 0x00000000

BUCSR = 0x00000001

HID0 = 0x00004080

HID1 = 0xc5021000

IVOR32 = 0x00000f00

IVOR33 = 0x00001000

IVOR34 = 0x00001100

IVOR35 = 0x00001200

L1CFG0 = 0x00383820

L1CFG1 = 0x00383820

L1CSR0 = 0x00010001

L1CSR1 = 0x00000001

MAS0 = 0x10000000

MAS1 = 0xc0000700

MAS2 = 0xff000002

MAS3 = 0xff000033

MAS4 = 0x00000000

MAS6 = 0x00000000

MCAR = 0x00000120

MCSR = 0x00000008

MCSRR0 = 0x04015750

MCSRR1 = 0x02029200

MMUCFG = 0x000019c4

MMUCSR0 = 0x00000000

PID0 = 0x00000000

PID1 = 0x00000000

PID2 = 0x00000000

SPEFSCR = 0x00000000

SVR = 0x80e80022

TLB0CFG = 0x04110200

TLB1CFG = 0x101bc010

System Return Info:

count: 19, reason: reset

pc:0x0, error address: 0x0

Stack Trace:

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

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 = 1024 MB - DIMM0 = 512 MB, DIMM1 = 512 MB

CISCO3945-CHASSIS with C3900-SPE150/K9 with 1048576 Kbytes of main memory

Main memory is configured to 72/72(dimm 0/1) bit mode with ECC enabled

Readonly ROMMON initialized

rommon 1 >

Thanks for your thoughts and ideas on this!!

Frank

3945 router will not boot

Hi Frank,

*** Machine Check Exception ***

System Return Info:

count: 19, reason: reset

pc:0x0, error address: 0x0

Stack Trace:

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

FP: 0x00000000, PC: 0x00000000

Based on the above it is confirmed that there is a Hardware issue with the device & requires replacement. Kindly do the needful.

***********Plz do rate this post if you found it helpful*************************

Thanks & Regards,

Vignesh R P

New Member

3945 router will not boot

Vignesh R P,

Thank you I appreciate your assistance.

Frank

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