[c-nsp] 7206 NPE-G2 crash caused by a bouncing DS1

[Brad Hedlund]

Justin,

Just curious, was the DS1 participating in a routing protocol, and if so did
you have IP event dampening and/or BGP dampening configured?


Cheers,

Brad Hedlund
bhedlund at cisco.com
http://www.internetworkexpert.org



On 7/22/09 11:16 AM, "Justin Shore" <justin at justinshore.com> wrote:

> Has anyone out there experienced any 7206 crashes when they have a
> bouncing DS1 on a PA-MC-2T3-EC?  We've had 2 crashes in about 3 weeks
> time.  They've both generated crashinfo files.  The first auto-rebooted
> itself.  Yesterday's did not.
> 
> System returned to ROM by error - a SegV exception, PC 0x349404 at
> 16:27:25 UTC Tue Jul 21 2009
> 
> The G2 is running 12.4(24)T.  I'm working with TAC who's escalated it to
> the developers.  They're thinking that it's an IOS bug that's being set
> off when a DS1 flaps (though not every time of course).  I don't know if
> severe and lengthy flapping is necessary or if a single instance could
> happen at just the right time to make it crash.  Both times though a DS1
> was bouncing every second or two and had been for days.  Both DS1s were
> members of MLPPP bundles at the time too.
> 
> Has anyone else experiences similar issues?
> 
> Thanks
>   Justin
> 
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