[c-nsp] Boot strangeness on 2821

[Jee Kay]

We've got a pair of 2821s which were working fine, until we starting
configuring them...

Now we get:

System Bootstrap, Version 12.4(1r) [hqluong 1r], RELEASE SOFTWARE (fc1)
Copyright (c) 2005 by cisco Systems, Inc.

Initializing memory for ECC.
c2821 processor with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled

Readonly ROMMON initialized
program load complete, entry point: 0x8000f000, size: 0xc940
program load complete, entry point: 0x8000f000, size: 0x231985c

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

*** Emulating mis-aligned store at 0x4520b3ef
    PC = 0x81166808 ... succeeded

*** Emulating mis-aligned store at 0x4521299b
    PC = 0x81166814 ... succeeded

<- - - SNIP – This goes on for a very long time, before finally ending
up in ROMMON - - ->

*** Emulating mis-aligned load at 0x45212987
    PC = 0x81166a60 ... failed, unknown branch

monitor: command "boot" aborted due to exception

c2821 processor with 262144 Kbytes of main memory
Main memory is configured to 64 bit mode with ECC enabled

Readonly ROMMON initialized
rommon 1 >



We had this happen on one router, figured it was a faulty flash or
image.. after much swapping of cards and reflashing it appeared not to
be. We dumped the config onto the partner router (that was working
fine), which then promptly fell over with the same symptoms.

Has anyone seen this before and/or know whether this is likely to be
an IOS/hardware/config fault?

Thanks in advance,
Ras