Thanks Neale!! I don't see any loops in the routes in the fib. In fact, as soon as vpp starts, I see the CPU going to 100%.
The output of "sh fib walk" is at: https://pastebin.com/G9YEkVGc The output of "sh run" is at: https://pastebin.com/RYtF9fHM "sh run" shows number of suspends as high, possibly because of a short sleep duration? On Mon, Apr 10, 2017 at 2:04 PM, Neale Ranns (nranns) <nra...@cisco.com> wrote: > Hi nagp, > > > > A FIB walk that consumes 100% CPU is usually indicative of a cycle/loop in > the FIB undirected graph. Cycles in routing should not form permanently, > i.e. the routing protocols will eventually converge away from the loop, but > they can form temporarily. > > Use; > > ‘sh fib walk’ > > to see the objects/nodes in the graph that are being visited in the walk. > This will give you output like: > > > > Brief History (last 128 walks): > > … > > [@6]: path-list:12 visits:1 duration:0.00 completed:85.06 sync, > reason:evaluate, > > … > > > > you can then see in detail with; > > ‘sb fib <TYPE> <INSTANCE>’ > > e.g. > > ‘sh fib path-list 12’ > > ‘sh fib entry 19’ > > > > if no cycle exists let me know. If one does exist, please debug from the > from a routing perspective. > > > > Regards, > > /neale > > > > *From: *<vpp-dev-boun...@lists.fd.io> on behalf of Nagaprabhanjan Bellaru > <nagp.li...@gmail.com> > *Date: *Monday, 10 April 2017 at 09:04 > *To: *vpp-dev <vpp-dev@lists.fd.io> > *Subject: *[vpp-dev] fib-walk is consuming 100% CPU.. > > > > There are a few routes in FIB, but fib-walk takes up 100% CPU. "show run" > shows fib-wak process running perpetually. > > Is there anything that we can do to get around this? > > Thanks, > > -nagp > >
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