[c-nsp] Crash bug in SXH3

[Charles Spurgeon]

To which I will add another warning: there is also a fatal crash bug
in SXH3 that is triggered by removing a route-map.

The CSCsk21935 buginfo heading is: "Crash in ipfib_policy_forward
after remove policy route-map" This bug is internally viewable only
and we got the heading info from the TAC. It's apparently related to
this publicly viewable bug: CSCsm75286

This bug in combination with an apparent hardware error on a Sup720
left one of our core routers equipped with dual sup720s crashed and
sitting in rommon.

We are informed that SXF code also has the route-map bug, but we have
more confidence in that code (having removed route-maps in it many
times without problems) so we have reverted to SXF6 while awaiting a
new SXH build.

-Charles

Charles E. Spurgeon / UTnet
UT Austin ITS / Networking
c.spurgeon at its.utexas.edu / 512.475.9265

On Thu, Aug 07, 2008 at 10:59:40PM +0100, Phil Mayers wrote:
> All,
> 
> Just a warning, there is a fatal crash bug in SXH3 related to using SCP. 
> Considering the release notes claim fixes in that very area, this is 
> highly amusing (note: issue may not actually be amusing)
> 
> Does anyone else think the 6500 software train is becoming a bad joke? 
> SRC claims *today* ISSU using dual sups / SSO, a much larger chunk of 
> (33) features e.g. 6vpe etc. and one presumes a faster rate of ports 
> from mainline IOS because they don't need to modularise everything.
> 
> SXH on the other hand has... erm... buggy modularity. And... buggy 
> monolithic too.
> 
> I haven't got a TAC case open because we've rolled back to SXH2a (which 
> has its own set of crash bugs, but less frequent ones...) and it's late 
> - a task for tomorrow I feel.
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