Re: snmpd seg faults on AIX

On Mon, Jan 11, 2010 at 10:40 AM, Dave Shield <[email protected]>wrote:

> 2010/1/11 Fulko Hew <[email protected]>:
> > and I'm browsing it using:
> >
> > # ./snmpwalk -cpublic -v1 -M /net-snm-5.5/mibs -mALL localhost:2000 .iso
> >
> > It doesn't get very far down the tree.
> > I see it trying to get ipFragsCreate, and then it faults.
>
>
> > Any clues as to what to try next?
>
>
> Does it return ipFragsCreate.0 or not?
>

Yes it did, it fails on getNext(ipFragsCreate.0)

If not, what happens when you try a GET request on this object?
> If it does, what happens when you try a GET request on the next object?
> (ipAdEntAddr.127.0.0.1)
>

It returns 'noSuch'


> What happens if you start walking shortly after this point?
> Say ipRouteTable?  or ipAdEntTable?
>

It faults on getnext ipRouteTable

I also tried querying the AIX supplied daemon for getnext(ipRouteTable)
to see what entry I should expect to see...
and it returned an entry, so I explictly queried netsnmp for _that_ entry...
get(ipRouteDest.10.40.16.0) and it too segfaults with exactly the same
message.


> Try to pinpoint exactly which object(s) are failing,
> and what does work OK
>

Moving forwards and backwards trying to isolate the bad spot, we see:

snmpwalk   ipFragCreates     -> returns data
snmpwalk   ipAddrTable)      -> fails
snmpwalk   ipRouteTable)     -> fails

snmpwalk   ipNetToMediaTable -> doesn't segfault, the daemon returned a
packet,
                                but 'walk' didn't output anything (sorry, I
have
                                no sniffer available to examine the response
in
                                more detail.)

snmpwalk   ipforward)        -> returns data
snmpwalk   icmp              -> returns data


FYI, when I invoke the daemon it complains about:
nlist err: neither proc nor _proc found.

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