router restart gone wrong !

Hi there,
I had a router c1841 cisco on which i upgraded the IOS and restarted the router. After restarting the router, it gave me the following messages (attached in code snippet) repeatedly upon attempting to restart. I had to use the tftpdnld method in ROMMON mode to bring the router back up. Can anyone help me with what exactly the reason might have been for these error messages ?
Possible software fault. Upon reccurence,  please collect
   crashinfo, "show tech" and contact Cisco Technical Support.
--------------------------------------------------------------------


-Traceback= 0x6059B834 0x60599408 0x6022C5B4 0x60233834 0x62449800 0x60F85F74 0x
60F80F50 0x60F79ECC 0x60F7BAF4 0x60F82D64 0x60F83398 0x60BC3798 0x60BAF26C 0x61A
585BC 0x61A585A0
$0 : 00000000, AT : 638D0000, v0 : 63B40000, v1 : 63640000
a0 : 00000000, a1 : 639A7F48, a2 : 00000000, a3 : 63B30000
t0 : 6059FBD0, t1 : 3401FF01, t2 : 6059FBD0, t3 : FFFF00FF
t4 : 6059FBD0, t5 : 00001680, t6 : 80000000, t7 : 00000000
s0 : 63AE7E00, s1 : 00000000, s2 : 63640000, s3 : 63570000
s4 : 00BEBC20, s5 : 60F85F6C, s6 : 00BEBC20, s7 : 00000001
t8 : 63EDDA8C, t9 : 00000008, k0 : 3041E801, k1 : 00100000
gp : 638D8B80, sp : 63EDDB30, s8 : 00000000, ra : 60599408
EPC  : 6059B834, ErrorEPC : BFC05F1C, SREG     : 3401FF03
MDLO : 0000002D, MDHI     : 00000000, BadVaddr : 775EFF75
DATA_START : 0x624892C0
Cause 00000024 (Code 0x9): Breakpoint exception

Writing crashinfo to flash:crashinfo_20100325-233324

 23:33:24 UTC Thu Mar 25 2010: Breakpoint exception, CPU signal 23, PC = 0x6059B
834



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


-Traceback= 0x6059B834 0x60599408 0x6022C5B4 0x60233834 0x62449800 0x60F85F74 0x
60F80F50 0x60F79ECC 0x60F7BAF4 0x60F82D64 0x60F83398 0x60BC3798 0x60BAF26C 0x61A
585BC 0x61A585A0
$0 : 00000000, AT : 638D0000, v0 : 63B40000, v1 : 63640000
a0 : 00000000, a1 : 639A7F48, a2 : 00000000, a3 : 63B30000
t0 : 6059FBD0, t1 : 3401FF01, t2 : 6059FBD0, t3 : FFFF00FF
t4 : 6059FBD0, t5 : 00001680, t6 : 80000000, t7 : 00000000
s0 : 63AE7E00, s1 : 00000000, s2 : 63640000, s3 : 63570000
s4 : 00BEBC20, s5 : 60F85F6C, s6 : 00BEBC20, s7 : 00000001
t8 : 63EDDA8C, t9 : 00000008, k0 : 3041E801, k1 : 00100000
gp : 638D8B80, sp : 63EDDB30, s8 : 00000000, ra : 60599408
EPC  : 6059B834, ErrorEPC : BFC05F1C, SREG     : 3401FF03
MDLO : 0000002D, MDHI     : 00000000, BadVaddr : 775EFF75
DATA_START : 0x624892C0
Cause 00000024 (Code 0x9): Breakpoint exception

-Traceback= 0x6059B834 0x60599408 0x6022C5B4 0x60233834 0x62449800 0x60F85F74 0x
60F80F50 0x60F79ECC 0x60F7BAF4 0x60F82D64 0x60F83398 0x60BC3798 0x60BAF26C 0x61A
585BC 0x61A585A0

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nabeel92Asked:
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atlas_shudderedSr. Network EngineerCommented:
Could be lose hardware.  Check components and reseat.
You can also check the following for other points:
http://www.cisco.com/en/US/products/sw/iosswrel/ps1831/products_tech_note09186a00800cdd51.shtml#more 
0
Istvan KalmarHead of IT Security Division Commented:
HI,

I advise to use another IOS, please upgade the latest !
0

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