Re: "ro->_ro_rt ==NULL || ro->_ro_rt->rt_refcnt > 0" failed

[Ryota Ozaki <ozaki-r%netbsd.org@localhost>]

On Wed, Sep 2, 2015 at 9:11 PM, Paul Goyette <paul%vps1.whooppee.com@localhost> wrote:
> On Wed, 2 Sep 2015, Ryota Ozaki wrote:
>
>> On Wed, Sep 2, 2015 at 5:45 PM, Ryota Ozaki <ozaki-r%netbsd.org@localhost> wrote:
>>>
>>> Hi,
>>>
>>> Thank you for rechecking.
>>>
>>> I found you're right and I mess up. I've been using a kernel
>>> with a different config from GENERIC, which is tuned for
>>> KVM to reduce build time. So I'm now able to reproduce the
>>> issue again with a latest GENERIC kernel. I've started
>>> debugging really.
>>
>>
>> I found nd6_lookup is broken. Here is a patch to fix the issue:
>> http://www.netbsd.org/~ozaki-r/fix-ipv6-refcnt.diff
>> It works for me. I hope it works for you too.
>>
>> The change looks big because it is based on my local change that
>> cleans up complicated nd6_lookup though, the point is to replace
>> rtfree with RTFREE_IF_NEEDED.
>
>
> This seems to work for me, too!

Yay!

>
> (I still have other routing issues with my vpn tunnel, but at least the
> machine no longer crashes.)

Hmm, feel free to report the issues.

Anyway thanks for you help!
  ozaki-r