Unexpected exception to CPUvector 1200 - What does it means?

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Hello everybody.
I have this cisco modular 1721 router with a wic adsl card. I am on BT broadband. Everynow and again the connection just droops, I got now IP address asigned to my dialer1 interface and then it comes up after like 1 or 2 minutes. What I noticed also is that my router every now and again is rebooting itself and as I was just creatting another setup file for it next to the terminal window I saw it crashing and rebooting.
This was the message I got:

*****************************************************************************

Oct 22 04:08:36.923: %LINEPROTO-5-UPDOWN: Line protocol on Interface ATM0, chang
ed state to up

Unexpected exception to CPUvector 1200, PC = 8028C8F0
-Traceback= 8028C8F0 80AA3E04 80AB2F08 80A9BD98 8043BE00 8043DB44 8043F81C 809BB
CE4 80273194 802732CC 809BEB50 80276AD8 8027B0E8
Free space check for flash:crashinfo_20081022-040841 failed (72/11467)


=== Flushing messages (04:08:41 UTC Wed Oct 22 200 ===

Queued messages:
*** System received a SegV exception ***
signal= 0xb, code= 0x1200, context= 0x814992a8
PC = 0x8028c8f0, Vector = 0x1200, SP = 0x81776400

System Bootstrap, Version 12.2(7r)XM2, RELEASE SOFTWARE (fc1)
TAC Support: http://www.cisco.com/tac
Copyright (c) 2003 by cisco Systems, Inc.
C1700 platform with 65536 Kbytes of main memory

program load complete, entry point: 0x80008000, size: 0x784794
Self decompressing the image : ###############

****************************************************************************

What am I up against here? Is my router faulty?
Any help much appreciated.
Cheers, Albert, C

 

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I'm no Cisco expert (at all!) but part of that message suggests that the part of flash that holds the crashinfo is full and needs clearing? If you did that you might get more info?

Harry.

 

Hello hbroomhall.
You are right about the free space on my flash.
I deleted all the crashinfo files and they do apear as deleted but it hasn't cleared any space on the flash.

*******************************************************************************
R1721#sh flash

System flash directory:
File Length Name/status
1 7883020 c1700-y7-mz.123-2.XE.bin
2 1038 home.shtml [deleted]
3 1829 sdmconfig-1721.cfg [deleted]
4 102400 home.tar [deleted]
5 1051648 common.tar [deleted]
6 4739072 sdm.tar [deleted]
7 864768 es.tar [deleted]
8 1164 n
9 1038 home.shtml
10 1829 sdmconfig-1721.cfg
11 102400 home.tar
12 1051648 common.tar
13 4739072 sdm.tar
14 864768 es.tar
15 3111 SDM_Backup
16 297940 crashinfo_20081002-224452 [deleted]
17 313006 crashinfo_20081003-011345 [deleted]
18 259617 crashinfo_20081003-034248 [deleted]
19 327260 crashinfo_20081003-051118 [deleted]
20 249942 crashinfo_20081003-064008 [deleted]
21 304595 crashinfo_20081003-073828 [deleted]
22 304031 crashinfo_20081009-021059 [deleted]
23 294330 crashinfo_20081009-101130 [deleted]
24 260375 crashinfo_20081009-124024 [deleted]
25 267868 crashinfo_20081009-152332 [deleted]
26 306092 crashinfo_20081009-162214 [deleted]
27 294982 crashinfo_20081009-182108 [deleted]
28 279062 crashinfo_20081009-191928 [deleted]
29 273427 crashinfo_20081009-204800 [deleted]
30 307317 crashinfo_20081009-214630 [deleted]
31 284432 crashinfo_20081010-051348 [deleted]
32 277049 crashinfo_20081010-061219 [deleted]
33 370690 crashinfo_20081010-114203 [deleted]
34 335440 crashinfo_20081010-153943 [deleted]
35 267773 crashinfo_20081010-223950 [deleted]
35 267773 crashinfo_20081010-223950 [deleted]
37 355068 crashinfo_20081013-030958 [deleted]
38 366017 crashinfo_20081014-043114 [deleted]
39 340123 crashinfo_20081014-103108 [deleted]
40 273018 crashinfo_20081014-130003 [deleted]
41 264168 crashinfo_20081014-160240 [deleted]
42 289373 crashinfo_20081014-183106 [deleted]
43 272922 crashinfo_20081014-204507 [deleted]
44 349960 crashinfo_20081014-221340 [deleted]
45 282158 crashinfo_20081014-231223 [deleted]
46 237328 crashinfo_20081015-061221 [deleted]
47 376025 crashinfo_20081015-134229 [deleted]
48 340170 crashinfo_20081016-005128 [deleted]
49 328489 crashinfo_20081016-022929 [deleted]
50 293808 crashinfo_20081016-032801 [deleted]
51 268459 crashinfo_20081016-042633 [deleted]
52 255106 crashinfo_20081016-055508 [deleted]
53 307962 crashinfo_20081016-075353 [deleted]
54 292392 crashinfo_20081016-085225 [deleted]
55 250621 crashinfo_20081016-105109 [deleted]
56 9299 crashinfo_20081016-125004
[33292216 bytes used, 72 available, 33292288 total]
32768K bytes of processor board System flash (Read/Write)

R1721#


*******************************************************************************

Do I have to erase flash and load my IOS?
Cheers,
Albert, C

 

I'm not too familiar with the 1721 but I think you need to do a "squeeze flash:" to recover the deleted file space.

 

I think the 'squeeze' command depends on the IOS, maybe..

Judging by the contents of your flash, the router's been doing this since 2nd October?

Try using the SDM, and see if anything crops up there?

 

I just went straight to a erase flash ans nearlly lost it when getting my IOS restored back using rommon mode with the tftpdnld comand.
Tooke ages just to realise that the minimum settings that we need like ip_address was just not working cause of the lowercase. Done it ussing UPERCASE IP_ADDRESS= and it worked go figur.
Anyway guys bellow there is a screen of what now looks.
The router hasn't yet crashed but lets see if it does it again. What I also noticed latelly is that my internet connection drops quite frequently for a while now even using BTs homehub, I wonder what's causing it. The phone line is noisy, it didn't use to be noisy but all tests performed by BT say that the line is free of errors.
Internet is also slow since we got a call d#from BT asking us if we'd stay with them for another year and by doing so they would drop the price by £2.00, I think that not only they have dropped the price as they also dropped the speed.
Thanks guys
************************************************************************
R1721#sh flash

System flash directory:
File Length Name/status
1 7883020 c1700-y7-mz.123-2.XE.BIN
[7883084 bytes used, 25409204 available, 33292288 total]
32768K bytes of processor board System flash (Read/Write)

R1721#

 

try replacing the filter if its an inline filter as I have had a lot pack up recently.

 

Sorry mate but could you please be more specific as I got no clue about what do you mean with the filter.
Thanks
Albert, C

 

On a DSL line you either have a filter built in to the faceplate from BT (the original and more reliable method of doing it)

Or you have an inline filter, which is a little tailed adapter that you plug your DSL connection in to one port and the phone in to the other.

if the phone line is being noisy it usually indicates either a failed/failing adapter (most common) or the standard BT faceplate is failing (happens rarely)

Usually replacing the tailed inline filter corrects the problem

 

Sorry mate but I was miles away from that, I thought you were talking IOS commands. I have totally misinterpreted your post.
I have one inline that was already replaced when all this started and the line is still noisy.
Can the noise be the cause for the router to crash?
Cheers,
Albert, C

 

Ok... After a full reinstalation of the IOS image ( after erased the whole flash) my router still is crashing.
Here's a more detailled information of the crashing file attached.
It has crashed 3 times yesterday and 4 today.
What is going on here? Is my router faulty? The thing is even my BT HomeHub is rebooting itself every so often as well. It all started around the same time, Is this a coinsidence?
Thanks
Albert, C

 

Have you tried booting it without the WIC to see what happens?

 

Hello BosonMichael.
I have taken the WIC card out and I am now using my old BT home hub for now.
I will leave the router on all night and day tomorrow till I get back from work and then see what does happen.
It took me quite a while to have this router setup to go online and it only started to crash when I managed to get it up and running online so it might be related. Also as I have said before, the line is a bit noisy and it didn't used to be like that. The weirdest thing is that even BT's home hub restarts itself every now and again.
I can see while watching a movie all the lights all of the sudden flashing and you hear it click as if it just restarted.
I'll keep you guys posted tomorrow.
Much appreciated for all your help.
Cheers,
Albert, C

 

Yes if it is really bad, I had a really noisey line once and I tried three different manufacturers before discovering the socket was at fault not the line, filter, or the equipment.

I think there is another thread around here somewhere with a similar problem.

I would check your master socket and any extensions

Phone BT faults whilst you have noise on the telephone plugged in to the socket that way they can hear the noise as well and cannot dismiss it after a line test.

You could try replacing the master phone socket if you have tried everything else

 

Teebor,
I guess it won't hurt buying a in wall built in adsl filter and have it put in place.
I have had BT checking the line and they have found nothing, including one of CF members works for BT and he personally have done a line check and also found it to be ok but, I shall follow your comment.
I will ring them. After all it does make sense the crashing as so their BT home hub also crashes.
The router still hasn't crashed since yesterday as you can see bellow...

#######################################################################

This is or should be a secure site . Authorized access only. Connections made
to this site are traceable. If you don't know what you are doing then log out.

User Access Verification

Password:
Password:
R1721>enable
R1721#sh flash

System flash directory:
File Length Name/status
1 7883020 c1700-y7-mz.123-2.XE.BIN
[7883084 bytes used, 25409204 available, 33292288 total]
32768K bytes of processor board System flash (Read/Write)

R1721#sh clock
06:18:54.773 UTC Tue Oct 28 2008
R1721#

#####################################################################
One more question. Do routers come with a built in battery so that it can keep the time correct? Reason why is that my router is always falling behind on the time.
I have purchased it on eBay brand new sealed in the CISCO box with the Cisco approved seal hologram sort of thing.

Cheers mate,
Albert, C

 

Most things usually loose time one way or another (look at windows PC's)

Best thing to do would be to google search for "public NTP server" and then use the NTP command on your router from config mode to set a server. When connected to the internet the router should then make sure its time is correct

If it is of a concern to you and want to set it that is

 

Well the time can be useful on a crashinfofile. Anyways, just back from work and the router hasn't crashed at all....

****************************************************************

R1721#sh flash

System flash directory:
File Length Name/status
1 7883020 c1700-y7-mz.123-2.XE.BIN
[7883084 bytes used, 25409204 available, 33292288 total]
32768K bytes of processor board System flash (Read/Write)

R1721#sh clock
17:25:32.187 UTC Tue Oct 28 2008
R1721#

****************************************************************

As for the NTP command mate my router’s IOS don't have it. Not to worry much I just thought that the router would have a battery sort of thing.

I am now going to insert the wic card into the router again but in the other bay and see what happens.

Thanks everybody.
I'll keep you all posted.
Cheers,
Albert, C

 

Good luck

 

Thanks mate.

Anyways, just after a good night sleep here I am just to find out that my cisco router 1721 has crashed yet again. I must say that it has only crashed once on the other WIC1 slot which is rather less than than the other WIC0 but this might be just coincidence.
What to do? I am lost.
It is a nightmare when your accessing your bank account or any online secure server and all of the sudden your internet connection drops.
Anyone, anymore ideias?
What can be done?
Cheers everybody.
Albert, C

 

It might be worthwhile posting the running config ( blank out your IPs and passwords ). I found some references on the Cisco website to crashes in similar routers caused by QoS commands.