rtfree: 0xc741ee88 has 1 refs

Per olof Ljungmark peo at intersonic.se
Tue Nov 6 10:11:36 PST 2007


Stefan Lambrev wrote:
> Hi,
> 
> Sorry to reply to myself, but I found that the problem exist only if the 
> GW is carp interface, e.g. 10.1.1.1 sits on carp0 on default GW.
> I'm still testing how to reproduce this in my test lab and will fill a PR.
> 
> Stefan Lambrev wrote:
>> Hi,
>>
>> I see rtfree: 0xc741ee88 has 1 refs with freebsd releng_7 (i386) from 
>> today.
>>
>> I think it's easy reproducible. What I have is:
>>
>> releng_7 (10.1.1.2) -> default GW (10.1.1.1)
>> on default GW I have route to 10.10.1.1/24 -> 10.1.1.3
>>
>> so everytime when 10.1.1.2 try to contact someone from 10.10.1.1/24 I 
>> see:
>> rtfree: 0xc741ee88 has 1 refs
>>
>> if I add direct route on 10.1.1.2 to 10.10.1.1/24 through 10.1.1.3 the 
>> message will go away.
>>
>> Should I ignore this msg for now, or should I expect kernel panic 
>> soon? :)

Just FYI, I see this on a few boxes including the 7-BETA2 I'm writing 
this on. None of them has a carp interface though. What I find 
interesting here is that none of them are able to run a SMP kernel 
without crashing (no panic, they're just frozen completely).

Perhaps it is a coincidence, I don't know, but I am very interested in 
your findings and have testbeds if you need.

--per


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