[c-nsp] strange vip crash

[Rodney Dunn]

On Thu, Jan 27, 2005 at 02:36:21PM -0500, Jon Lewis wrote:
> On Thu, 27 Jan 2005, Rodney Dunn wrote:
> 
> > It's memory corruption on the VIP.
> >
> > Almost impossible to troubleshoot without
> > the crashinfo from the VIP and you said
> > it didn't generate one. :(
> >
> > Try and determine if there was any changes
> > around that VIP about the time it reloaded.
> 
> By changes, do you mean config or someone working nearby who could have
> physically bumped it?  I know from rancid that there had been no config
> changes in >24h from when the crash happened.

I meant anything.

data path changes
routing table
interface changes
etc...

Very unlikely it was physical related since it was dealing
with a special type of memory blocks.  So I would suspect
some internal change to the box such as "routing protocol
flap, interface flap for that VIP, burst of traffic on that
VIP, etc...".  Something along those lines.


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